Tutorial setup

If you have not done the prior sections, you’ll need to set Spack up like this:

git clone https://github.com/spack/spack
. spack/share/spack/setup-env.sh
spack tutorial

See the Basic Installation Tutorial for full details on setup. For more help join us in the #tutorial channel on Slack – get an invitation at spackpm.herokuapp.com

Developer Workflows Tutorial

This tutorial will guide you through the process of using the spack develop command to develop software from local source code within a spack environment. With this command spack will manage your dependencies while you focus on testing changes to your library and/or application.

Installing from local source

The spack install command, as you know, fetches source code from a mirror or the internet before building and installing your package. As developers, we want to build from local source, which we will constantly change, build, and test.

Let’s imagine for a second we’re working on scr. scr is a library used to implement scalable checkpointing in application codes. It supports writing/reading checkpoints quickly and efficiently using MPI and high-bandwidth file I/O. We’d like to test changes to scr within an actual application so we’ll test with macsio, a proxy application written to mimic typical HPC I/O workloads. We’ve chosen scr and macsio because together they are quick to build.

We’ll start by making an environment for our development. We need to build macsio with scr support, and we’d like everything to be built without fortran support for the time being. Let’s set up that development workflow.

$ cd ~
$ mkdir devel-env
$ cd devel-env
$ spack env create -d .
==> Updating view at /home/spack/devel-env/.spack-env/view
==> Created environment in /home/spack/devel-env
==> You can activate this environment with:
==>   spack env activate /home/spack/devel-env
$ spacktivate .
$ #  for now, disable fortran support in all packages
$ spack config add "packages:all:variants: ~fortran"
$ spack add macsio+scr
==> Adding macsio+scr to environment /home/spack/devel-env
$ spack install
==> Bootstrapping clingo from pre-built binaries
==> Starting concretization
==> Environment concretized in 11.82 seconds.
==> Concretized macsio+scr
 -   32fxerq  macsio@1.1%gcc@7.5.0~exodus~hdf5~ipo+mpi~pdb+scr+silo~szip~typhonio~zfp~zlib build_type=RelWithDebInfo patches=59479b946e5bbf677e814dc1cde12b38dd3b083fec8c543fc6d3abf9f73dbbfa arch=linux-ubuntu18.04-x86_64
 -   anj6kcx	  ^cmake@3.21.4%gcc@7.5.0~doc+ncurses+openssl+ownlibs~qt build_type=Release arch=linux-ubuntu18.04-x86_64
 -   d34lizg	      ^ncurses@6.2%gcc@7.5.0~symlinks+termlib abi=none arch=linux-ubuntu18.04-x86_64
 -   ucp6vz7		  ^pkgconf@1.8.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   lygx3cq	      ^openssl@1.1.1l%gcc@7.5.0~docs certs=system arch=linux-ubuntu18.04-x86_64
 -   672tzld		  ^perl@5.34.0%gcc@7.5.0+cpanm+shared+threads arch=linux-ubuntu18.04-x86_64
 -   ue5lnfm		      ^berkeley-db@18.1.40%gcc@7.5.0+cxx~docs+stl patches=b231fcc4d5cff05e5c3a4814f6a5af0e9a966428dc2176540d2c05aff41de522 arch=linux-ubuntu18.04-x86_64
 -   55rtzz4		      ^bzip2@1.0.8%gcc@7.5.0~debug~pic+shared arch=linux-ubuntu18.04-x86_64
 -   kg5jymj			  ^diffutils@3.8%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   qi7dxj6			      ^libiconv@1.16%gcc@7.5.0 libs=shared,static arch=linux-ubuntu18.04-x86_64
 -   oftaepj		      ^gdbm@1.19%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   27u6g7p			  ^readline@8.1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   3rlgy7y		      ^zlib@1.2.11%gcc@7.5.0+optimize+pic+shared arch=linux-ubuntu18.04-x86_64
 -   2cj3pok	  ^json-cwx@0.12%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   7hurwa7	      ^autoconf@2.69%gcc@7.5.0 patches=35c449281546376449766f92d49fc121ca50e330e60fefcfc9be2af3253082c2,7793209b33013dc0f81208718c68440c5aae80e7a1c4b8d336e382525af791a7,a49dd5bac3b62daa0ff688ab4d508d71dbd2f4f8d7e2a02321926346161bf3ee arch=linux-ubuntu18.04-x86_64
 -   ybvezwz		  ^m4@1.4.19%gcc@7.5.0+sigsegv patches=9dc5fbd0d5cb1037ab1e6d0ecc74a30df218d0a94bdd5a02759a97f62daca573,bfdffa7c2eb01021d5849b36972c069693654ad826c1a20b53534009a4ec7a89 arch=linux-ubuntu18.04-x86_64
 -   g2vgcne		      ^libsigsegv@2.13%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   6rqxcsn	      ^automake@1.16.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   2kia6gf	      ^libtool@2.4.6%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   p5qicac	  ^openmpi@4.1.1%gcc@7.5.0~atomics~cuda~cxx~cxx_exceptions+gpfs~internal-hwloc~java~legacylaunchers~lustre~memchecker~pmi~pmix~singularity~sqlite3+static~thread_multiple+vt+wrapper-rpath fabrics=none schedulers=none arch=linux-ubuntu18.04-x86_64
 -   gedgnpg	      ^hwloc@2.6.0%gcc@7.5.0~cairo~cuda~gl~libudev+libxml2~netloc~nvml~opencl+pci~rocm+shared arch=linux-ubuntu18.04-x86_64
 -   ryhmw2g		  ^libpciaccess@0.16%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   h5cf2g4		      ^util-macros@1.19.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   2hw4ddh		  ^libxml2@2.9.12%gcc@7.5.0~python arch=linux-ubuntu18.04-x86_64
 -   nplaaps		      ^xz@5.2.5%gcc@7.5.0~pic libs=shared,static arch=linux-ubuntu18.04-x86_64
 -   xai6pyc	      ^libevent@2.1.12%gcc@7.5.0+openssl arch=linux-ubuntu18.04-x86_64
 -   3opot4q	      ^numactl@2.0.14%gcc@7.5.0 patches=4e1d78cbbb85de625bad28705e748856033eaafab92a66dffd383a3d7e00cc94,62fc8a8bf7665a60e8f4c93ebbd535647cebf74198f7afafec4c085a8825c006,ff37630df599cfabf0740518b91ec8daaf18e8f288b19adaae5364dc1f6b2296 arch=linux-ubuntu18.04-x86_64
 -   ux36qlb	      ^openssh@8.7p1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   3lzuqwn		  ^libedit@3.1-20210216%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   bvve4uc	  ^scr@3.0rc2%gcc@7.5.0+bbapi~bbapi_fallback~dw+examples~fortran~ipo+libyogrt+pdsh+shared+tests build_type=RelWithDebInfo cache_base=/dev/shm cntl_base=/dev/shm copy_config=none file_lock=FLOCK resource_manager=SLURM scr_config=scr.conf arch=linux-ubuntu18.04-x86_64
 -   tioad6w	      ^axl@0.5.0%gcc@7.5.0+bbapi~bbapi_fallback~dw~ipo+shared async_api=daemon build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
 -   6aehk3f		  ^kvtree@1.2.0%gcc@7.5.0~ipo+mpi+shared build_type=RelWithDebInfo file_lock=FLOCK arch=linux-ubuntu18.04-x86_64
 -   jcs7klx	      ^dtcmp@1.1.3%gcc@7.5.0+shared arch=linux-ubuntu18.04-x86_64
 -   45q636p		  ^lwgrp@1.0.4%gcc@7.5.0+shared arch=linux-ubuntu18.04-x86_64
 -   27seins	      ^er@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
 -   no7gfol		  ^rankstr@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
 -   ymbgmh3		  ^redset@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
 -   enyf2gi		  ^shuffile@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
 -   p3d3hsx	      ^libyogrt@1.24%gcc@7.5.0~static scheduler=slurm arch=linux-ubuntu18.04-x86_64
 -   o245qon		  ^slurm@21-08-1-1%gcc@7.5.0~gtk~hdf5~hwloc~mariadb~pmix+readline~restd sysconfdir=PREFIX/etc arch=linux-ubuntu18.04-x86_64
 -   5qolphz		      ^curl@7.79.0%gcc@7.5.0~gssapi~ldap~libidn2~librtmp~libssh~libssh2~nghttp2 tls=openssl arch=linux-ubuntu18.04-x86_64
 -   fp5v742		      ^glib@2.70.0%gcc@7.5.0~libmount patches=8547954e50d0a720fa9794b84c31569df6a7419319b95ac9de0ed861d8969ffd tracing=none arch=linux-ubuntu18.04-x86_64
 -   2zkxpoq			  ^gettext@0.21%gcc@7.5.0+bzip2+curses+git~libunistring+libxml2+tar+xz arch=linux-ubuntu18.04-x86_64
 -   otlzkgd			      ^tar@1.34%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   4bz34d3			  ^libffi@3.3%gcc@7.5.0 patches=26f26c6f29a7ce9bf370ad3ab2610f99365b4bdd7b82e7c31df41a3370d685c0 arch=linux-ubuntu18.04-x86_64
 -   ngg44u2			  ^meson@0.60.0%gcc@7.5.0 patches=aa6c50d5a2aeb1a487d16f6712be4357fefb923aae37ab830699b07338388287 arch=linux-ubuntu18.04-x86_64
 -   fgf6frb			      ^ninja@1.10.2%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   g2gj6mw				  ^python@3.8.12%gcc@7.5.0+bz2+ctypes+dbm~debug+libxml2+lzma~nis~optimizations+pic+pyexpat+pythoncmd+readline+shared+sqlite3+ssl~tix~tkinter~ucs4+uuid+zlib patches=0d98e93189bc278fbc37a50ed7f183bd8aaf249a8e1670a465f0db6bb4f8cf87,4c2457325f2b608b1b6a2c63087df8c26e07db3e3d493caf36a56f0ecf6fb768,f2fd060afc4b4618fe8104c4c5d771f36dc55b1db5a4623785a4ea707ec72fb4 arch=linux-ubuntu18.04-x86_64
 -   j3i7qne				      ^expat@2.4.1%gcc@7.5.0+libbsd arch=linux-ubuntu18.04-x86_64
 -   j5lylsy					  ^libbsd@0.11.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   aq7ydx6					      ^libmd@1.0.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   ckghzv6				      ^sqlite@3.36.0%gcc@7.5.0+column_metadata+fts~functions~rtree arch=linux-ubuntu18.04-x86_64
 -   c23s54s				      ^util-linux-uuid@2.36.2%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   o52ww56			      ^py-setuptools@58.2.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   cgah7ko			  ^pcre@8.44%gcc@7.5.0~jit+multibyte+utf arch=linux-ubuntu18.04-x86_64
 -   2dxobcc		      ^json-c@0.15%gcc@7.5.0~ipo build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
 -   nuqiq66		      ^lz4@1.9.3%gcc@7.5.0 libs=shared,static arch=linux-ubuntu18.04-x86_64
 -   h2wjv26		      ^munge@0.5.14%gcc@7.5.0 localstatedir=PREFIX/var arch=linux-ubuntu18.04-x86_64
 -   64zlffc			  ^libgcrypt@1.9.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   cexzidc			      ^libgpg-error@1.42%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   km73vx2				  ^gawk@5.1.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   7kpzyzg				      ^gmp@6.2.1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   35qmsm6				      ^mpfr@4.1.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   ievdgld					  ^autoconf-archive@2019.01.06%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   p3is4ct					  ^texinfo@6.5%gcc@7.5.0 patches=12f6edb0c6b270b8c8dba2ce17998c580db01182d871ee32b7b6e4129bd1d23a,1732115f651cff98989cb0215d8f64da5e0f7911ebf0c13b064920f088f2ffe1 arch=linux-ubuntu18.04-x86_64
 -   6ffspsj	      ^pdsh@2.31%gcc@7.5.0+ssh+static_modules arch=linux-ubuntu18.04-x86_64
 -   lml7squ	      ^spath@0.1.0%gcc@7.5.0~ipo+mpi+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
 -   k6jhkin	  ^silo@4.10.2%gcc@7.5.0~fortran+fpzip+hdf5+hzip+mpi+pic+shared~silex patches=7b5a1dc2a0e358e667088d77e7caa780967fa8ea60be89c44986605df9990abe,952d3c95fbeaf32355c1c24d831b6c315c5cf29023874127b0f461855046750c arch=linux-ubuntu18.04-x86_64
 -   vt7sza3	      ^hdf5@1.10.7%gcc@7.5.0~cxx~fortran~hl~ipo~java+mpi+shared~szip~threadsafe+tools api=default build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64

==> Installing environment /home/spack/devel-env
==> Installing pkgconf-1.8.0-ucp6vz7fe6ihtcmqav3vucwgqjwyw7po
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/pkgconf-1.8.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-pkgconf-1.8.0-ucp6vz7fe6ihtcmqav3vucwgqjwyw7po.spack
==> Extracting pkgconf-1.8.0-ucp6vz7fe6ihtcmqav3vucwgqjwyw7po from binary cache
==> Installing patchelf-0.13-2txxradgazf7zvc5kzwmc26oqjuop7ej
==> No binary for patchelf-0.13-2txxradgazf7zvc5kzwmc26oqjuop7ej found: installing from source
==> Using cached archive: /home/spack/spack/var/spack/cache/_source-cache/archive/4c/4c7ed4bcfc1a114d6286e4a0d3c1a90db147a4c3adda1814ee0eee0f9ee917ed.tar.bz2
==> No patches needed for patchelf
==> patchelf: Executing phase: 'autoreconf'
==> patchelf: Executing phase: 'configure'
==> patchelf: Executing phase: 'build'
==> patchelf: Executing phase: 'install'
==> patchelf: Successfully installed patchelf-0.13-2txxradgazf7zvc5kzwmc26oqjuop7ej
  Fetch: 0.00s.  Build: 6.68s.	Total: 6.68s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/patchelf-0.13-2txxradgazf7zvc5kzwmc26oqjuop7ej
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pkgconf-1.8.0-ucp6vz7fe6ihtcmqav3vucwgqjwyw7po
==> Installing berkeley-db-18.1.40-ue5lnfmm3yaiwm2jha4pnbg2s4h7jaqb
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/berkeley-db-18.1.40/linux-ubuntu18.04-x86_64-gcc-7.5.0-berkeley-db-18.1.40-ue5lnfmm3yaiwm2jha4pnbg2s4h7jaqb.spack
==> Extracting berkeley-db-18.1.40-ue5lnfmm3yaiwm2jha4pnbg2s4h7jaqb from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/berkeley-db-18.1.40-ue5lnfmm3yaiwm2jha4pnbg2s4h7jaqb
==> Installing libiconv-1.16-qi7dxj6rgdydno5mdjzyolz6applztig
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libiconv-1.16/linux-ubuntu18.04-x86_64-gcc-7.5.0-libiconv-1.16-qi7dxj6rgdydno5mdjzyolz6applztig.spack
==> Extracting libiconv-1.16-qi7dxj6rgdydno5mdjzyolz6applztig from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libiconv-1.16-qi7dxj6rgdydno5mdjzyolz6applztig
==> Installing zlib-1.2.11-3rlgy7ycxtoho44una6o3itgfjltkmpd
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/zlib-1.2.11/linux-ubuntu18.04-x86_64-gcc-7.5.0-zlib-1.2.11-3rlgy7ycxtoho44una6o3itgfjltkmpd.spack
==> Extracting zlib-1.2.11-3rlgy7ycxtoho44una6o3itgfjltkmpd from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/zlib-1.2.11-3rlgy7ycxtoho44una6o3itgfjltkmpd
==> Installing libsigsegv-2.13-g2vgcnev7aspdihdmfbviefdbinclpy7
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libsigsegv-2.13/linux-ubuntu18.04-x86_64-gcc-7.5.0-libsigsegv-2.13-g2vgcnev7aspdihdmfbviefdbinclpy7.spack
==> Extracting libsigsegv-2.13-g2vgcnev7aspdihdmfbviefdbinclpy7 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libsigsegv-2.13-g2vgcnev7aspdihdmfbviefdbinclpy7
==> Installing util-macros-1.19.3-h5cf2g4fzeytdsypsm5gsb4h6saddfev
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-macros-1.19.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-util-macros-1.19.3-h5cf2g4fzeytdsypsm5gsb4h6saddfev.spack
==> Extracting util-macros-1.19.3-h5cf2g4fzeytdsypsm5gsb4h6saddfev from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-macros-1.19.3-h5cf2g4fzeytdsypsm5gsb4h6saddfev
==> Installing xz-5.2.5-nplaapsuxr5djslmxm6sdmaw2xl4d2ti
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/xz-5.2.5/linux-ubuntu18.04-x86_64-gcc-7.5.0-xz-5.2.5-nplaapsuxr5djslmxm6sdmaw2xl4d2ti.spack
==> Extracting xz-5.2.5-nplaapsuxr5djslmxm6sdmaw2xl4d2ti from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/xz-5.2.5-nplaapsuxr5djslmxm6sdmaw2xl4d2ti
==> Installing libffi-3.3-4bz34d34hhd46kk5a56sxfxsiifstgqm
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libffi-3.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-libffi-3.3-4bz34d34hhd46kk5a56sxfxsiifstgqm.spack
==> Extracting libffi-3.3-4bz34d34hhd46kk5a56sxfxsiifstgqm from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libffi-3.3-4bz34d34hhd46kk5a56sxfxsiifstgqm
==> Installing libmd-1.0.3-aq7ydx6pf32mhb7f5ekv3saqc63avue4
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libmd-1.0.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-libmd-1.0.3-aq7ydx6pf32mhb7f5ekv3saqc63avue4.spack
==> Extracting libmd-1.0.3-aq7ydx6pf32mhb7f5ekv3saqc63avue4 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libmd-1.0.3-aq7ydx6pf32mhb7f5ekv3saqc63avue4
==> Installing pcre-8.44-cgah7konnh5573ylmymnl33dqcgoxihf
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/pcre-8.44/linux-ubuntu18.04-x86_64-gcc-7.5.0-pcre-8.44-cgah7konnh5573ylmymnl33dqcgoxihf.spack
==> Extracting pcre-8.44-cgah7konnh5573ylmymnl33dqcgoxihf from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pcre-8.44-cgah7konnh5573ylmymnl33dqcgoxihf
==> Installing lz4-1.9.3-nuqiq664fip3rtr5c6jtzmzlonvm2omg
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/lz4-1.9.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-lz4-1.9.3-nuqiq664fip3rtr5c6jtzmzlonvm2omg.spack
==> Extracting lz4-1.9.3-nuqiq664fip3rtr5c6jtzmzlonvm2omg from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lz4-1.9.3-nuqiq664fip3rtr5c6jtzmzlonvm2omg
==> Installing autoconf-archive-2019.01.06-ievdgldrkygwmwhegqpvp4znw4ewf4f4
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-archive-2019.01.06/linux-ubuntu18.04-x86_64-gcc-7.5.0-autoconf-archive-2019.01.06-ievdgldrkygwmwhegqpvp4znw4ewf4f4.spack
==> Extracting autoconf-archive-2019.01.06-ievdgldrkygwmwhegqpvp4znw4ewf4f4 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-archive-2019.01.06-ievdgldrkygwmwhegqpvp4znw4ewf4f4
==> Installing pdsh-2.31-6ffspsjtiqvzouzj5wno4bqfr3kvs275
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/pdsh-2.31/linux-ubuntu18.04-x86_64-gcc-7.5.0-pdsh-2.31-6ffspsjtiqvzouzj5wno4bqfr3kvs275.spack
==> Extracting pdsh-2.31-6ffspsjtiqvzouzj5wno4bqfr3kvs275 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pdsh-2.31-6ffspsjtiqvzouzj5wno4bqfr3kvs275
==> Installing ncurses-6.2-d34lizgt45miuctn4cmx7quklvukdd2w
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/ncurses-6.2/linux-ubuntu18.04-x86_64-gcc-7.5.0-ncurses-6.2-d34lizgt45miuctn4cmx7quklvukdd2w.spack
==> Extracting ncurses-6.2-d34lizgt45miuctn4cmx7quklvukdd2w from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ncurses-6.2-d34lizgt45miuctn4cmx7quklvukdd2w
==> Installing util-linux-uuid-2.36.2-c23s54sq5hbjqkyia3gbxc6frz5xnu67
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-linux-uuid-2.36.2/linux-ubuntu18.04-x86_64-gcc-7.5.0-util-linux-uuid-2.36.2-c23s54sq5hbjqkyia3gbxc6frz5xnu67.spack
==> Extracting util-linux-uuid-2.36.2-c23s54sq5hbjqkyia3gbxc6frz5xnu67 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-linux-uuid-2.36.2-c23s54sq5hbjqkyia3gbxc6frz5xnu67
==> Installing tar-1.34-otlzkgdrugkhzebt75hwibn55g25owfg
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/tar-1.34/linux-ubuntu18.04-x86_64-gcc-7.5.0-tar-1.34-otlzkgdrugkhzebt75hwibn55g25owfg.spack
==> Extracting tar-1.34-otlzkgdrugkhzebt75hwibn55g25owfg from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/tar-1.34-otlzkgdrugkhzebt75hwibn55g25owfg
==> Installing diffutils-3.8-kg5jymjbqjurpq52nvycbddt5ia5uypy
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/diffutils-3.8/linux-ubuntu18.04-x86_64-gcc-7.5.0-diffutils-3.8-kg5jymjbqjurpq52nvycbddt5ia5uypy.spack
==> Extracting diffutils-3.8-kg5jymjbqjurpq52nvycbddt5ia5uypy from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/diffutils-3.8-kg5jymjbqjurpq52nvycbddt5ia5uypy
==> Installing m4-1.4.19-ybvezwzldr6ibw767ihpeoal625y76qb
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/m4-1.4.19/linux-ubuntu18.04-x86_64-gcc-7.5.0-m4-1.4.19-ybvezwzldr6ibw767ihpeoal625y76qb.spack
==> Extracting m4-1.4.19-ybvezwzldr6ibw767ihpeoal625y76qb from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/m4-1.4.19-ybvezwzldr6ibw767ihpeoal625y76qb
==> Installing libxml2-2.9.12-2hw4ddh7dbtl3wcw5hrt4kk2fkwhfuzj
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libxml2-2.9.12/linux-ubuntu18.04-x86_64-gcc-7.5.0-libxml2-2.9.12-2hw4ddh7dbtl3wcw5hrt4kk2fkwhfuzj.spack
==> Extracting libxml2-2.9.12-2hw4ddh7dbtl3wcw5hrt4kk2fkwhfuzj from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libxml2-2.9.12-2hw4ddh7dbtl3wcw5hrt4kk2fkwhfuzj
==> Installing libbsd-0.11.3-j5lylsyqvmdsqyeroekdwv2l7ayusg66
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libbsd-0.11.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-libbsd-0.11.3-j5lylsyqvmdsqyeroekdwv2l7ayusg66.spack
==> Extracting libbsd-0.11.3-j5lylsyqvmdsqyeroekdwv2l7ayusg66 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libbsd-0.11.3-j5lylsyqvmdsqyeroekdwv2l7ayusg66
==> Installing readline-8.1-27u6g7pchcquj67llpfzttc6n7e5pfjg
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/readline-8.1/linux-ubuntu18.04-x86_64-gcc-7.5.0-readline-8.1-27u6g7pchcquj67llpfzttc6n7e5pfjg.spack
==> Extracting readline-8.1-27u6g7pchcquj67llpfzttc6n7e5pfjg from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/readline-8.1-27u6g7pchcquj67llpfzttc6n7e5pfjg
==> Installing libedit-3.1-20210216-3lzuqwnyuelfhjrxpn45akh7huu3ifr5
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libedit-3.1-20210216/linux-ubuntu18.04-x86_64-gcc-7.5.0-libedit-3.1-20210216-3lzuqwnyuelfhjrxpn45akh7huu3ifr5.spack
==> Extracting libedit-3.1-20210216-3lzuqwnyuelfhjrxpn45akh7huu3ifr5 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libedit-3.1-20210216-3lzuqwnyuelfhjrxpn45akh7huu3ifr5
==> Installing bzip2-1.0.8-55rtzz4s6m4swr6x7exse22ucbmluwl3
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/bzip2-1.0.8/linux-ubuntu18.04-x86_64-gcc-7.5.0-bzip2-1.0.8-55rtzz4s6m4swr6x7exse22ucbmluwl3.spack
==> Extracting bzip2-1.0.8-55rtzz4s6m4swr6x7exse22ucbmluwl3 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/bzip2-1.0.8-55rtzz4s6m4swr6x7exse22ucbmluwl3
==> Installing libtool-2.4.6-2kia6gf4yz6k3vsdqlg5lmp6n5hplrxq
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libtool-2.4.6/linux-ubuntu18.04-x86_64-gcc-7.5.0-libtool-2.4.6-2kia6gf4yz6k3vsdqlg5lmp6n5hplrxq.spack
==> Extracting libtool-2.4.6-2kia6gf4yz6k3vsdqlg5lmp6n5hplrxq from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libtool-2.4.6-2kia6gf4yz6k3vsdqlg5lmp6n5hplrxq
==> Installing expat-2.4.1-j3i7qneh3l4itds4i2fi4h3s43ywviln
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/expat-2.4.1/linux-ubuntu18.04-x86_64-gcc-7.5.0-expat-2.4.1-j3i7qneh3l4itds4i2fi4h3s43ywviln.spack
==> Extracting expat-2.4.1-j3i7qneh3l4itds4i2fi4h3s43ywviln from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/expat-2.4.1-j3i7qneh3l4itds4i2fi4h3s43ywviln
==> Installing gdbm-1.19-oftaepjelizkam37ezxwkuw27clnosqn
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/gdbm-1.19/linux-ubuntu18.04-x86_64-gcc-7.5.0-gdbm-1.19-oftaepjelizkam37ezxwkuw27clnosqn.spack
==> Extracting gdbm-1.19-oftaepjelizkam37ezxwkuw27clnosqn from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gdbm-1.19-oftaepjelizkam37ezxwkuw27clnosqn
==> Installing sqlite-3.36.0-ckghzv6lpov23xcc2fchao54pehnzms5
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/sqlite-3.36.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-sqlite-3.36.0-ckghzv6lpov23xcc2fchao54pehnzms5.spack
==> Extracting sqlite-3.36.0-ckghzv6lpov23xcc2fchao54pehnzms5 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/sqlite-3.36.0-ckghzv6lpov23xcc2fchao54pehnzms5
==> Installing gettext-0.21-2zkxpoqsacwadhe44zhd5hrozt344yfl
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/gettext-0.21/linux-ubuntu18.04-x86_64-gcc-7.5.0-gettext-0.21-2zkxpoqsacwadhe44zhd5hrozt344yfl.spack
==> Extracting gettext-0.21-2zkxpoqsacwadhe44zhd5hrozt344yfl from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gettext-0.21-2zkxpoqsacwadhe44zhd5hrozt344yfl
==> Installing libpciaccess-0.16-ryhmw2gqeeqclg65uuabqgsgpiac2nm2
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libpciaccess-0.16/linux-ubuntu18.04-x86_64-gcc-7.5.0-libpciaccess-0.16-ryhmw2gqeeqclg65uuabqgsgpiac2nm2.spack
==> Extracting libpciaccess-0.16-ryhmw2gqeeqclg65uuabqgsgpiac2nm2 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libpciaccess-0.16-ryhmw2gqeeqclg65uuabqgsgpiac2nm2
==> Installing perl-5.34.0-672tzldkvypvrxirrs5okvjrfvhxzyzv
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/perl-5.34.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-perl-5.34.0-672tzldkvypvrxirrs5okvjrfvhxzyzv.spack
==> Extracting perl-5.34.0-672tzldkvypvrxirrs5okvjrfvhxzyzv from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/perl-5.34.0-672tzldkvypvrxirrs5okvjrfvhxzyzv
==> Installing hwloc-2.6.0-gedgnpght7xquztmkhthmaid6lbhlz4p
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/hwloc-2.6.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-hwloc-2.6.0-gedgnpght7xquztmkhthmaid6lbhlz4p.spack
==> Extracting hwloc-2.6.0-gedgnpght7xquztmkhthmaid6lbhlz4p from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hwloc-2.6.0-gedgnpght7xquztmkhthmaid6lbhlz4p
==> Installing openssl-1.1.1l-lygx3cqqbvl5gkyvfkggphorm7xus2ih
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssl-1.1.1l/linux-ubuntu18.04-x86_64-gcc-7.5.0-openssl-1.1.1l-lygx3cqqbvl5gkyvfkggphorm7xus2ih.spack
==> Extracting openssl-1.1.1l-lygx3cqqbvl5gkyvfkggphorm7xus2ih from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssl-1.1.1l-lygx3cqqbvl5gkyvfkggphorm7xus2ih
==> Installing autoconf-2.69-7hurwa7ymeksnawbazxutf7k7qvjm772
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-2.69/linux-ubuntu18.04-x86_64-gcc-7.5.0-autoconf-2.69-7hurwa7ymeksnawbazxutf7k7qvjm772.spack
==> Extracting autoconf-2.69-7hurwa7ymeksnawbazxutf7k7qvjm772 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-2.69-7hurwa7ymeksnawbazxutf7k7qvjm772
==> Installing texinfo-6.5-p3is4ct3s4brgpdlthexp24lsgxcisuc
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/texinfo-6.5/linux-ubuntu18.04-x86_64-gcc-7.5.0-texinfo-6.5-p3is4ct3s4brgpdlthexp24lsgxcisuc.spack
==> Extracting texinfo-6.5-p3is4ct3s4brgpdlthexp24lsgxcisuc from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/texinfo-6.5-p3is4ct3s4brgpdlthexp24lsgxcisuc
==> Installing cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4/linux-ubuntu18.04-x86_64-gcc-7.5.0-cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea.spack
==> Extracting cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea from binary cache
==> Warning: patchelf --print-rpath /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea/share/cmake-3.21/Modules/Internal/CPack/CPack.OSXScriptLauncher.in produced an error [Command exited with status 1:
    '/home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/patchelf-0.13-2txxradgazf7zvc5kzwmc26oqjuop7ej/bin/patchelf' '--print-rpath' '/home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea/share/cmake-3.21/Modules/Internal/CPack/CPack.OSXScriptLauncher.in'
patchelf: not an ELF executable
]
==> Warning: patchelf --force-rpath --set-rpath /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea/share/cmake-3.21/Modules/Internal/CPack/CPack.OSXScriptLauncher.in failed with error Command exited with status 1:
    '/home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/patchelf-0.13-2txxradgazf7zvc5kzwmc26oqjuop7ej/bin/patchelf' '--force-rpath' '--set-rpath' '' '/home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea/share/cmake-3.21/Modules/Internal/CPack/CPack.OSXScriptLauncher.in'
patchelf: not an ELF executable

[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea
==> Installing openssh-8.7p1-ux36qlbxdga4c5oragb7o5r4y7bsgbpy
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssh-8.7p1/linux-ubuntu18.04-x86_64-gcc-7.5.0-openssh-8.7p1-ux36qlbxdga4c5oragb7o5r4y7bsgbpy.spack
==> Extracting openssh-8.7p1-ux36qlbxdga4c5oragb7o5r4y7bsgbpy from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssh-8.7p1-ux36qlbxdga4c5oragb7o5r4y7bsgbpy
==> Installing python-3.8.12-g2gj6mwslk2hfaalmye23emjrpgnxetb
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/python-3.8.12/linux-ubuntu18.04-x86_64-gcc-7.5.0-python-3.8.12-g2gj6mwslk2hfaalmye23emjrpgnxetb.spack
==> Extracting python-3.8.12-g2gj6mwslk2hfaalmye23emjrpgnxetb from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/python-3.8.12-g2gj6mwslk2hfaalmye23emjrpgnxetb
==> Installing libevent-2.1.12-xai6pycqx4h6n2l7f676q3kwql5zjdaw
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libevent-2.1.12/linux-ubuntu18.04-x86_64-gcc-7.5.0-libevent-2.1.12-xai6pycqx4h6n2l7f676q3kwql5zjdaw.spack
==> Extracting libevent-2.1.12-xai6pycqx4h6n2l7f676q3kwql5zjdaw from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libevent-2.1.12-xai6pycqx4h6n2l7f676q3kwql5zjdaw
==> Installing curl-7.79.0-5qolphzwei45fvq5np5xywkjijyy2pqj
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/curl-7.79.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-curl-7.79.0-5qolphzwei45fvq5np5xywkjijyy2pqj.spack
==> Extracting curl-7.79.0-5qolphzwei45fvq5np5xywkjijyy2pqj from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/curl-7.79.0-5qolphzwei45fvq5np5xywkjijyy2pqj
==> Installing automake-1.16.3-6rqxcsn5r7kffecp45iumner6vnbbmho
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/automake-1.16.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-automake-1.16.3-6rqxcsn5r7kffecp45iumner6vnbbmho.spack
==> Extracting automake-1.16.3-6rqxcsn5r7kffecp45iumner6vnbbmho from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/automake-1.16.3-6rqxcsn5r7kffecp45iumner6vnbbmho
==> Installing json-c-0.15-2dxobcc2dlh22ezwpqojayh7yjxm6xh7
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-c-0.15/linux-ubuntu18.04-x86_64-gcc-7.5.0-json-c-0.15-2dxobcc2dlh22ezwpqojayh7yjxm6xh7.spack
==> Extracting json-c-0.15-2dxobcc2dlh22ezwpqojayh7yjxm6xh7 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-c-0.15-2dxobcc2dlh22ezwpqojayh7yjxm6xh7
==> Installing py-setuptools-58.2.0-o52ww56ua4xm2ttxocye3hhco3pkt7i5
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/py-setuptools-58.2.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-py-setuptools-58.2.0-o52ww56ua4xm2ttxocye3hhco3pkt7i5.spack
==> Extracting py-setuptools-58.2.0-o52ww56ua4xm2ttxocye3hhco3pkt7i5 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/py-setuptools-58.2.0-o52ww56ua4xm2ttxocye3hhco3pkt7i5
==> Installing ninja-1.10.2-fgf6frbnqqlh3ty57lsohkqpp7qs2bcc
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/ninja-1.10.2/linux-ubuntu18.04-x86_64-gcc-7.5.0-ninja-1.10.2-fgf6frbnqqlh3ty57lsohkqpp7qs2bcc.spack
==> Extracting ninja-1.10.2-fgf6frbnqqlh3ty57lsohkqpp7qs2bcc from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ninja-1.10.2-fgf6frbnqqlh3ty57lsohkqpp7qs2bcc
==> Installing json-cwx-0.12-2cj3pokgau53ss52t6y52zhft3jennb4
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-cwx-0.12/linux-ubuntu18.04-x86_64-gcc-7.5.0-json-cwx-0.12-2cj3pokgau53ss52t6y52zhft3jennb4.spack
==> Extracting json-cwx-0.12-2cj3pokgau53ss52t6y52zhft3jennb4 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-cwx-0.12-2cj3pokgau53ss52t6y52zhft3jennb4
==> Installing numactl-2.0.14-3opot4q2nxdmogm7t5pt5wkhvapqex76
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/numactl-2.0.14/linux-ubuntu18.04-x86_64-gcc-7.5.0-numactl-2.0.14-3opot4q2nxdmogm7t5pt5wkhvapqex76.spack
==> Extracting numactl-2.0.14-3opot4q2nxdmogm7t5pt5wkhvapqex76 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/numactl-2.0.14-3opot4q2nxdmogm7t5pt5wkhvapqex76
==> Installing gmp-6.2.1-7kpzyzgpa54nap7kap6cznbyerseariq
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/gmp-6.2.1/linux-ubuntu18.04-x86_64-gcc-7.5.0-gmp-6.2.1-7kpzyzgpa54nap7kap6cznbyerseariq.spack
==> Extracting gmp-6.2.1-7kpzyzgpa54nap7kap6cznbyerseariq from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gmp-6.2.1-7kpzyzgpa54nap7kap6cznbyerseariq
==> Installing meson-0.60.0-ngg44u2g42jrh7roi44lzi3h6bngq6s7
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/meson-0.60.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-meson-0.60.0-ngg44u2g42jrh7roi44lzi3h6bngq6s7.spack
==> Extracting meson-0.60.0-ngg44u2g42jrh7roi44lzi3h6bngq6s7 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/meson-0.60.0-ngg44u2g42jrh7roi44lzi3h6bngq6s7
==> Installing openmpi-4.1.1-p5qicacmcy72pjljd4lfdy66kavxp3tv
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/openmpi-4.1.1/linux-ubuntu18.04-x86_64-gcc-7.5.0-openmpi-4.1.1-p5qicacmcy72pjljd4lfdy66kavxp3tv.spack
==> Extracting openmpi-4.1.1-p5qicacmcy72pjljd4lfdy66kavxp3tv from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openmpi-4.1.1-p5qicacmcy72pjljd4lfdy66kavxp3tv
==> Installing mpfr-4.1.0-35qmsm6i5dl3aukbesu7q4wagsggdle6
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/mpfr-4.1.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-mpfr-4.1.0-35qmsm6i5dl3aukbesu7q4wagsggdle6.spack
==> Extracting mpfr-4.1.0-35qmsm6i5dl3aukbesu7q4wagsggdle6 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/mpfr-4.1.0-35qmsm6i5dl3aukbesu7q4wagsggdle6
==> Installing glib-2.70.0-fp5v74247d4zw5txq3mf5gfif6l2zafr
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/glib-2.70.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-glib-2.70.0-fp5v74247d4zw5txq3mf5gfif6l2zafr.spack
==> Extracting glib-2.70.0-fp5v74247d4zw5txq3mf5gfif6l2zafr from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/glib-2.70.0-fp5v74247d4zw5txq3mf5gfif6l2zafr
==> Installing rankstr-0.1.0-no7gfol3i63vc4qi26hfjkexameqpaih
==> No binary for rankstr-0.1.0-no7gfol3i63vc4qi26hfjkexameqpaih found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/b6/b68239d67b2359ecc067cc354f86ccfbc8f02071e60d28ae0a2449f2e7f88001.tar.gz
==> No patches needed for rankstr
==> rankstr: Executing phase: 'cmake'
==> rankstr: Executing phase: 'build'
==> rankstr: Executing phase: 'install'
==> rankstr: Successfully installed rankstr-0.1.0-no7gfol3i63vc4qi26hfjkexameqpaih
  Fetch: 0.17s.  Build: 2.32s.	Total: 2.49s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/rankstr-0.1.0-no7gfol3i63vc4qi26hfjkexameqpaih
==> Installing hdf5-1.10.7-vt7sza3ycdsw62lk3f2dtnlvmeyihe3r
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/hdf5-1.10.7/linux-ubuntu18.04-x86_64-gcc-7.5.0-hdf5-1.10.7-vt7sza3ycdsw62lk3f2dtnlvmeyihe3r.spack
==> Extracting hdf5-1.10.7-vt7sza3ycdsw62lk3f2dtnlvmeyihe3r from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hdf5-1.10.7-vt7sza3ycdsw62lk3f2dtnlvmeyihe3r
==> Installing spath-0.1.0-lml7squ734gduaxlgmtji35j3ipiho3x
==> No binary for spath-0.1.0-lml7squ734gduaxlgmtji35j3ipiho3x found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/2c/2cfc635b2384d3f92973c7aea173dabe47da112d308f5098e6636e4b2f4a704c.tar.gz
==> No patches needed for spath
==> spath: Executing phase: 'cmake'
==> spath: Executing phase: 'build'
==> spath: Executing phase: 'install'
==> spath: Successfully installed spath-0.1.0-lml7squ734gduaxlgmtji35j3ipiho3x
  Fetch: 0.17s.  Build: 2.60s.	Total: 2.77s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/spath-0.1.0-lml7squ734gduaxlgmtji35j3ipiho3x
==> Installing kvtree-1.2.0-6aehk3fy6juitziyair3p77rchjc7vdn
==> No binary for kvtree-1.2.0-6aehk3fy6juitziyair3p77rchjc7vdn found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/ec/ecd4b8bc479c33ab4f23fc764445a3bb353a1d15c208d011f5577a32c182477f.tar.gz
==> No patches needed for kvtree
==> kvtree: Executing phase: 'cmake'
==> kvtree: Executing phase: 'build'
==> kvtree: Executing phase: 'install'
==> kvtree: Successfully installed kvtree-1.2.0-6aehk3fy6juitziyair3p77rchjc7vdn
  Fetch: 0.18s.  Build: 3.11s.	Total: 3.29s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/kvtree-1.2.0-6aehk3fy6juitziyair3p77rchjc7vdn
==> Installing lwgrp-1.0.4-45q636plsnkwwadt5wzgweqxwiuzmq5b
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/lwgrp-1.0.4/linux-ubuntu18.04-x86_64-gcc-7.5.0-lwgrp-1.0.4-45q636plsnkwwadt5wzgweqxwiuzmq5b.spack
==> Extracting lwgrp-1.0.4-45q636plsnkwwadt5wzgweqxwiuzmq5b from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lwgrp-1.0.4-45q636plsnkwwadt5wzgweqxwiuzmq5b
==> Installing gawk-5.1.0-km73vx2mpg3yypzj24amottx37cws42d
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/gawk-5.1.0/linux-ubuntu18.04-x86_64-gcc-7.5.0-gawk-5.1.0-km73vx2mpg3yypzj24amottx37cws42d.spack
==> Extracting gawk-5.1.0-km73vx2mpg3yypzj24amottx37cws42d from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gawk-5.1.0-km73vx2mpg3yypzj24amottx37cws42d
==> Installing silo-4.10.2-k6jhkinwksprvq3sm5q7awrqefz7acv6
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/silo-4.10.2/linux-ubuntu18.04-x86_64-gcc-7.5.0-silo-4.10.2-k6jhkinwksprvq3sm5q7awrqefz7acv6.spack
==> Extracting silo-4.10.2-k6jhkinwksprvq3sm5q7awrqefz7acv6 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/silo-4.10.2-k6jhkinwksprvq3sm5q7awrqefz7acv6
==> Installing axl-0.5.0-tioad6wp5iuywmdxnjhvtltp3avwhvky
==> No binary for axl-0.5.0-tioad6wp5iuywmdxnjhvtltp3avwhvky found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/9f/9f3bbb4de563896551bdb68e889ba93ea1984586961ad8c627ed766bff020acf.tar.gz
==> No patches needed for axl
==> axl: Executing phase: 'cmake'
==> axl: Executing phase: 'build'
==> axl: Executing phase: 'install'
==> axl: Successfully installed axl-0.5.0-tioad6wp5iuywmdxnjhvtltp3avwhvky
  Fetch: 0.16s.  Build: 2.16s.	Total: 2.32s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/axl-0.5.0-tioad6wp5iuywmdxnjhvtltp3avwhvky
==> Installing redset-0.1.0-ymbgmh3bvalhkaoe6uuvwrgekb7cqglx
==> No binary for redset-0.1.0-ymbgmh3bvalhkaoe6uuvwrgekb7cqglx found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/ba/baa75de0d0d6de64ade50cff3d38ee89fd136ce69869182bdaefccf5be5d286d.tar.gz
==> No patches needed for redset
==> redset: Executing phase: 'cmake'
==> redset: Executing phase: 'build'
==> redset: Executing phase: 'install'
==> redset: Successfully installed redset-0.1.0-ymbgmh3bvalhkaoe6uuvwrgekb7cqglx
  Fetch: 0.24s.  Build: 3.38s.	Total: 3.62s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/redset-0.1.0-ymbgmh3bvalhkaoe6uuvwrgekb7cqglx
==> Installing shuffile-0.1.0-enyf2gizxhlgkzplkscl7j2qrgutvckk
==> No binary for shuffile-0.1.0-enyf2gizxhlgkzplkscl7j2qrgutvckk found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/9e/9e730cc8b7937517a9cffb08c031d9f5772306341c49d17b87b7f349d55a6d5e.tar.gz
==> No patches needed for shuffile
==> shuffile: Executing phase: 'cmake'
==> shuffile: Executing phase: 'build'
==> shuffile: Executing phase: 'install'
==> shuffile: Successfully installed shuffile-0.1.0-enyf2gizxhlgkzplkscl7j2qrgutvckk
  Fetch: 0.15s.  Build: 2.45s.	Total: 2.61s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/shuffile-0.1.0-enyf2gizxhlgkzplkscl7j2qrgutvckk
==> Installing dtcmp-1.1.3-jcs7klxz4mprtgg3vixn7346pkz445sf
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/dtcmp-1.1.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-dtcmp-1.1.3-jcs7klxz4mprtgg3vixn7346pkz445sf.spack
==> Extracting dtcmp-1.1.3-jcs7klxz4mprtgg3vixn7346pkz445sf from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/dtcmp-1.1.3-jcs7klxz4mprtgg3vixn7346pkz445sf
==> Installing libgpg-error-1.42-cexzidcgh23waigsmbhusasgnpgtxs3c
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgpg-error-1.42/linux-ubuntu18.04-x86_64-gcc-7.5.0-libgpg-error-1.42-cexzidcgh23waigsmbhusasgnpgtxs3c.spack
==> Extracting libgpg-error-1.42-cexzidcgh23waigsmbhusasgnpgtxs3c from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgpg-error-1.42-cexzidcgh23waigsmbhusasgnpgtxs3c
==> Installing er-0.1.0-27seinsuu6l3hyzgki5quussnyd7zlsq
==> No binary for er-0.1.0-27seinsuu6l3hyzgki5quussnyd7zlsq found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/54/543afc1c48bb2c67f48c32f6c9efcbf7bb27f2e622ff76f2c2ce5618c77aacfc.tar.gz
==> No patches needed for er
==> er: Executing phase: 'cmake'
==> er: Executing phase: 'build'
==> er: Executing phase: 'install'
==> er: Successfully installed er-0.1.0-27seinsuu6l3hyzgki5quussnyd7zlsq
  Fetch: 0.15s.  Build: 2.49s.	Total: 2.64s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/er-0.1.0-27seinsuu6l3hyzgki5quussnyd7zlsq
==> Installing libgcrypt-1.9.3-64zlffccerrhz3nlkxjx63wpzq5fvxg2
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgcrypt-1.9.3/linux-ubuntu18.04-x86_64-gcc-7.5.0-libgcrypt-1.9.3-64zlffccerrhz3nlkxjx63wpzq5fvxg2.spack
==> Extracting libgcrypt-1.9.3-64zlffccerrhz3nlkxjx63wpzq5fvxg2 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgcrypt-1.9.3-64zlffccerrhz3nlkxjx63wpzq5fvxg2
==> Installing munge-0.5.14-h2wjv26l5fzghzgjh37s6itdwdsr3cj7
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/munge-0.5.14/linux-ubuntu18.04-x86_64-gcc-7.5.0-munge-0.5.14-h2wjv26l5fzghzgjh37s6itdwdsr3cj7.spack
==> Extracting munge-0.5.14-h2wjv26l5fzghzgjh37s6itdwdsr3cj7 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/munge-0.5.14-h2wjv26l5fzghzgjh37s6itdwdsr3cj7
==> Installing slurm-21-08-1-1-o245qontgozhxt7crmu56qlzqvpi34be
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/slurm-21-08-1-1/linux-ubuntu18.04-x86_64-gcc-7.5.0-slurm-21-08-1-1-o245qontgozhxt7crmu56qlzqvpi34be.spack
==> Extracting slurm-21-08-1-1-o245qontgozhxt7crmu56qlzqvpi34be from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/slurm-21-08-1-1-o245qontgozhxt7crmu56qlzqvpi34be
==> Installing libyogrt-1.24-p3d3hsxpsgv7qftiym34g4emus25zci6
==> Fetching file:///mirror/build_cache/linux-ubuntu18.04-x86_64/gcc-7.5.0/libyogrt-1.24/linux-ubuntu18.04-x86_64-gcc-7.5.0-libyogrt-1.24-p3d3hsxpsgv7qftiym34g4emus25zci6.spack
==> Extracting libyogrt-1.24-p3d3hsxpsgv7qftiym34g4emus25zci6 from binary cache
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libyogrt-1.24-p3d3hsxpsgv7qftiym34g4emus25zci6
==> Installing scr-3.0rc2-bvve4uccot3wu4o2erb67y5virerknb3
==> No binary for scr-3.0rc2-bvve4uccot3wu4o2erb67y5virerknb3 found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/4b/4b2a718af56b3683e428d25a2269c038e9452db734221d370e3023a491477fad.tar.gz
==> No patches needed for scr
==> scr: Executing phase: 'cmake'
==> scr: Executing phase: 'build'
==> scr: Executing phase: 'install'
==> scr: Successfully installed scr-3.0rc2-bvve4uccot3wu4o2erb67y5virerknb3
  Fetch: 0.34s.  Build: 5.10s.	Total: 5.44s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/scr-3.0rc2-bvve4uccot3wu4o2erb67y5virerknb3
==> Installing macsio-1.1-32fxerql7k4vzprssfnevnsilzfkjmnb
==> No binary for macsio-1.1-32fxerql7k4vzprssfnevnsilzfkjmnb found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/a8/a86249b0f10647c0b631773db69568388094605ec1a0af149d9e61e95e6961ec.tar.gz
==> Applied patch /home/spack/spack/var/spack/repos/builtin/packages/macsio/cast.patch
==> macsio: Executing phase: 'cmake'
==> macsio: Executing phase: 'build'
==> macsio: Executing phase: 'install'
==> macsio: Successfully installed macsio-1.1-32fxerql7k4vzprssfnevnsilzfkjmnb
  Fetch: 0.69s.  Build: 3.47s.	Total: 4.15s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/macsio-1.1-32fxerql7k4vzprssfnevnsilzfkjmnb
==> Updating view at /home/spack/devel-env/.spack-env/view

Before we do any work, we verify that this all builds. Spack ends up building the entire development tree below, and links everything together for you.

digraph G { labelloc = "b" rankdir = "TB" ranksep = "1" edge[ penwidth=4 ] node[ fontname=Monaco, penwidth=4, fontsize=24, margin=.2, shape=box, fillcolor=lightblue, style="rounded,filled" ] "4sh6pymrm2ms4auu3ajbjjr6fiuhz5g7" [label="pkgconf"] "7tkgwjvu2mi4ea2wsdetunq7g4k4r2nh" [label="json-cwx"] "4ihuiazsglf22f3pntq5hc4kyszqzexn" [label="berkeley-db"] "jearpk4xci4zc7dkrza4fufaqfkq7rfl" [label="libiconv"] "d2krmb5gweivlnztcymhklzsqbrpatt6" [label="automake"] "gs6ag7ktdoiirb62t7bcagjw62szrrg2" [label="util-macros"] "yn2r3wfhiilelyulh5toteicdtxjhw7d" [label="libxml2"] "lbrx7lnfz46ukewxbhxnucmx76g23c6q" [label="libsigsegv"] "bob4o5m3uku6vtdil5imasprgy775zg7" [label="libpciaccess"] "pmsyupw6w3gql4loaor25gfumlmvkl25" [label="openmpi"] "mkc3u4x2p2wie6jfhuku7g5rkovcrxps" [label="m4"] "jdxbjftheiotj6solpomva7dowrhlerl" [label="libtool"] "mm33a3ocsv3jsh2tfxc4mlab4xsurtdd" [label="autoconf"] "zfdvt2jjuaees43ffrrtphqs2ky3o22t" [label="perl"] "t54jzdy2jj4snltjazlm3br2urcilc6v" [label="readline"] "4av4gywgpaspkhy3dvbb62nulqogtzbb" [label="gdbm"] "crhlefo3dv7lmsv5pf4icsy4gepkdorm" [label="ncurses"] "bltycqwh5oofai4f6o42q4uuj4w5zb3j" [label="cmake"] "zqwfzhw5k2ollygh6nrjpsi7u4d4g6lu" [label="hwloc"] "vedchc5aoqyu3ydbp346qrbpe6kg46rq" [label="hdf5"] "wbqbc5vw5sxzwhvu56p6x5nd5n4abrvh" [label="numactl"] "komekkmyciga3kl24edjmredhj3uyt7v" [label="xz"] "es377uqsqougfc67jyg7yfjyyuukin52" [label="openssl"] "vfrf7asfclt7epufnoxibfqbkntbk5k3" [label="silo"] "smoyzzo2qhzpn6mg6rd3l2p7b23enshg" [label="zlib"] "sz72vygmht66khd5aa4kihz5alg4nrbm" [label="macsio"] "wbqbc5vw5sxzwhvu56p6x5nd5n4abrvh" -> "jdxbjftheiotj6solpomva7dowrhlerl" "zqwfzhw5k2ollygh6nrjpsi7u4d4g6lu" -> "4sh6pymrm2ms4auu3ajbjjr6fiuhz5g7" "sz72vygmht66khd5aa4kihz5alg4nrbm" -> "vfrf7asfclt7epufnoxibfqbkntbk5k3" "vfrf7asfclt7epufnoxibfqbkntbk5k3" -> "t54jzdy2jj4snltjazlm3br2urcilc6v" "crhlefo3dv7lmsv5pf4icsy4gepkdorm" -> "4sh6pymrm2ms4auu3ajbjjr6fiuhz5g7" "7tkgwjvu2mi4ea2wsdetunq7g4k4r2nh" -> "mkc3u4x2p2wie6jfhuku7g5rkovcrxps" "sz72vygmht66khd5aa4kihz5alg4nrbm" -> "pmsyupw6w3gql4loaor25gfumlmvkl25" "zqwfzhw5k2ollygh6nrjpsi7u4d4g6lu" -> "wbqbc5vw5sxzwhvu56p6x5nd5n4abrvh" "7tkgwjvu2mi4ea2wsdetunq7g4k4r2nh" -> "d2krmb5gweivlnztcymhklzsqbrpatt6" "es377uqsqougfc67jyg7yfjyyuukin52" -> "smoyzzo2qhzpn6mg6rd3l2p7b23enshg" "bltycqwh5oofai4f6o42q4uuj4w5zb3j" -> "crhlefo3dv7lmsv5pf4icsy4gepkdorm" "mm33a3ocsv3jsh2tfxc4mlab4xsurtdd" -> "zfdvt2jjuaees43ffrrtphqs2ky3o22t" "es377uqsqougfc67jyg7yfjyyuukin52" -> "zfdvt2jjuaees43ffrrtphqs2ky3o22t" "7tkgwjvu2mi4ea2wsdetunq7g4k4r2nh" -> "jdxbjftheiotj6solpomva7dowrhlerl" "mkc3u4x2p2wie6jfhuku7g5rkovcrxps" -> "lbrx7lnfz46ukewxbhxnucmx76g23c6q" "bltycqwh5oofai4f6o42q4uuj4w5zb3j" -> "es377uqsqougfc67jyg7yfjyyuukin52" "vedchc5aoqyu3ydbp346qrbpe6kg46rq" -> "smoyzzo2qhzpn6mg6rd3l2p7b23enshg" "wbqbc5vw5sxzwhvu56p6x5nd5n4abrvh" -> "d2krmb5gweivlnztcymhklzsqbrpatt6" "zfdvt2jjuaees43ffrrtphqs2ky3o22t" -> "4av4gywgpaspkhy3dvbb62nulqogtzbb" "vedchc5aoqyu3ydbp346qrbpe6kg46rq" -> "pmsyupw6w3gql4loaor25gfumlmvkl25" "d2krmb5gweivlnztcymhklzsqbrpatt6" -> "mm33a3ocsv3jsh2tfxc4mlab4xsurtdd" "bob4o5m3uku6vtdil5imasprgy775zg7" -> "jdxbjftheiotj6solpomva7dowrhlerl" "yn2r3wfhiilelyulh5toteicdtxjhw7d" -> "komekkmyciga3kl24edjmredhj3uyt7v" "pmsyupw6w3gql4loaor25gfumlmvkl25" -> "smoyzzo2qhzpn6mg6rd3l2p7b23enshg" "wbqbc5vw5sxzwhvu56p6x5nd5n4abrvh" -> "mm33a3ocsv3jsh2tfxc4mlab4xsurtdd" "vfrf7asfclt7epufnoxibfqbkntbk5k3" -> "vedchc5aoqyu3ydbp346qrbpe6kg46rq" "bob4o5m3uku6vtdil5imasprgy775zg7" -> "gs6ag7ktdoiirb62t7bcagjw62szrrg2" "d2krmb5gweivlnztcymhklzsqbrpatt6" -> "zfdvt2jjuaees43ffrrtphqs2ky3o22t" "7tkgwjvu2mi4ea2wsdetunq7g4k4r2nh" -> "mm33a3ocsv3jsh2tfxc4mlab4xsurtdd" "vfrf7asfclt7epufnoxibfqbkntbk5k3" -> "smoyzzo2qhzpn6mg6rd3l2p7b23enshg" "zfdvt2jjuaees43ffrrtphqs2ky3o22t" -> "4ihuiazsglf22f3pntq5hc4kyszqzexn" "bob4o5m3uku6vtdil5imasprgy775zg7" -> "4sh6pymrm2ms4auu3ajbjjr6fiuhz5g7" "vfrf7asfclt7epufnoxibfqbkntbk5k3" -> "pmsyupw6w3gql4loaor25gfumlmvkl25" "zqwfzhw5k2ollygh6nrjpsi7u4d4g6lu" -> "bob4o5m3uku6vtdil5imasprgy775zg7" "yn2r3wfhiilelyulh5toteicdtxjhw7d" -> "jearpk4xci4zc7dkrza4fufaqfkq7rfl" "sz72vygmht66khd5aa4kihz5alg4nrbm" -> "bltycqwh5oofai4f6o42q4uuj4w5zb3j" "pmsyupw6w3gql4loaor25gfumlmvkl25" -> "wbqbc5vw5sxzwhvu56p6x5nd5n4abrvh" "sz72vygmht66khd5aa4kihz5alg4nrbm" -> "7tkgwjvu2mi4ea2wsdetunq7g4k4r2nh" "yn2r3wfhiilelyulh5toteicdtxjhw7d" -> "smoyzzo2qhzpn6mg6rd3l2p7b23enshg" "t54jzdy2jj4snltjazlm3br2urcilc6v" -> "crhlefo3dv7lmsv5pf4icsy4gepkdorm" "pmsyupw6w3gql4loaor25gfumlmvkl25" -> "zqwfzhw5k2ollygh6nrjpsi7u4d4g6lu" "4av4gywgpaspkhy3dvbb62nulqogtzbb" -> "t54jzdy2jj4snltjazlm3br2urcilc6v" "jdxbjftheiotj6solpomva7dowrhlerl" -> "mkc3u4x2p2wie6jfhuku7g5rkovcrxps" "yn2r3wfhiilelyulh5toteicdtxjhw7d" -> "4sh6pymrm2ms4auu3ajbjjr6fiuhz5g7" "mm33a3ocsv3jsh2tfxc4mlab4xsurtdd" -> "mkc3u4x2p2wie6jfhuku7g5rkovcrxps" "zqwfzhw5k2ollygh6nrjpsi7u4d4g6lu" -> "yn2r3wfhiilelyulh5toteicdtxjhw7d" "pmsyupw6w3gql4loaor25gfumlmvkl25" -> "4sh6pymrm2ms4auu3ajbjjr6fiuhz5g7" "wbqbc5vw5sxzwhvu56p6x5nd5n4abrvh" -> "mkc3u4x2p2wie6jfhuku7g5rkovcrxps" }

Now we are ready to begin work on the actual application.

Development iteration cycles

Let’s assume that scr has a bug, and we’d like to patch scr to find out what the problem is. First, we tell spack that we’d like to check out a development version of scr:

$ spack develop scr@3.0rc2
==> Configuring spec scr@3.0rc2 for development at path scr
==> Using cached archive: /home/spack/spack/var/spack/cache/_source-cache/archive/4b/4b2a718af56b3683e428d25a2269c038e9452db734221d370e3023a491477fad.tar.gz
$ grep -3 develop: spack.yaml
  packages:
    all:
      variants: ~fortran
  develop:
    scr:
      spec: scr@3.0rc2

The spack develop command marks the package as being a “development” package in the spack.yaml. This adds a special dev_path= attribute to the spec for the package, so spack remembers where the source code for this package is located. The develop command also downloads/checks out the source code for the package. By default, the source code is downloaded into a subdirectory of the environment. You can change the location of this source directory by modifying the path: attribute of the develop configuration in the environment.

There are a two gotchas with the spack develop command

  • You need to manually specify the package version when specifying a package as a dev package. Spack needs to know the version of the dev package so it can supply the correct flags for the package’s build system.
  • You’ll need to re-concretize the environment so that the version number and the dev_path= attributes are properly added to the cached spec in spack.lock.
$ spack concretize -f
==> Starting concretization
==> Environment concretized in 11.68 seconds.
==> Concretized macsio+scr
 -   b6t7ybv  macsio@1.1%gcc@7.5.0~exodus~hdf5~ipo+mpi~pdb+scr+silo~szip~typhonio~zfp~zlib build_type=RelWithDebInfo patches=59479b946e5bbf677e814dc1cde12b38dd3b083fec8c543fc6d3abf9f73dbbfa arch=linux-ubuntu18.04-x86_64
[+]  anj6kcx	  ^cmake@3.21.4%gcc@7.5.0~doc+ncurses+openssl+ownlibs~qt build_type=Release arch=linux-ubuntu18.04-x86_64
[+]  d34lizg	      ^ncurses@6.2%gcc@7.5.0~symlinks+termlib abi=none arch=linux-ubuntu18.04-x86_64
[+]  ucp6vz7		  ^pkgconf@1.8.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  lygx3cq	      ^openssl@1.1.1l%gcc@7.5.0~docs certs=system arch=linux-ubuntu18.04-x86_64
[+]  672tzld		  ^perl@5.34.0%gcc@7.5.0+cpanm+shared+threads arch=linux-ubuntu18.04-x86_64
[+]  ue5lnfm		      ^berkeley-db@18.1.40%gcc@7.5.0+cxx~docs+stl patches=b231fcc4d5cff05e5c3a4814f6a5af0e9a966428dc2176540d2c05aff41de522 arch=linux-ubuntu18.04-x86_64
[+]  55rtzz4		      ^bzip2@1.0.8%gcc@7.5.0~debug~pic+shared arch=linux-ubuntu18.04-x86_64
[+]  kg5jymj			  ^diffutils@3.8%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  qi7dxj6			      ^libiconv@1.16%gcc@7.5.0 libs=shared,static arch=linux-ubuntu18.04-x86_64
[+]  oftaepj		      ^gdbm@1.19%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  27u6g7p			  ^readline@8.1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  3rlgy7y		      ^zlib@1.2.11%gcc@7.5.0+optimize+pic+shared arch=linux-ubuntu18.04-x86_64
[+]  2cj3pok	  ^json-cwx@0.12%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  7hurwa7	      ^autoconf@2.69%gcc@7.5.0 patches=35c449281546376449766f92d49fc121ca50e330e60fefcfc9be2af3253082c2,7793209b33013dc0f81208718c68440c5aae80e7a1c4b8d336e382525af791a7,a49dd5bac3b62daa0ff688ab4d508d71dbd2f4f8d7e2a02321926346161bf3ee arch=linux-ubuntu18.04-x86_64
[+]  ybvezwz		  ^m4@1.4.19%gcc@7.5.0+sigsegv patches=9dc5fbd0d5cb1037ab1e6d0ecc74a30df218d0a94bdd5a02759a97f62daca573,bfdffa7c2eb01021d5849b36972c069693654ad826c1a20b53534009a4ec7a89 arch=linux-ubuntu18.04-x86_64
[+]  g2vgcne		      ^libsigsegv@2.13%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  6rqxcsn	      ^automake@1.16.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  2kia6gf	      ^libtool@2.4.6%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  p5qicac	  ^openmpi@4.1.1%gcc@7.5.0~atomics~cuda~cxx~cxx_exceptions+gpfs~internal-hwloc~java~legacylaunchers~lustre~memchecker~pmi~pmix~singularity~sqlite3+static~thread_multiple+vt+wrapper-rpath fabrics=none schedulers=none arch=linux-ubuntu18.04-x86_64
[+]  gedgnpg	      ^hwloc@2.6.0%gcc@7.5.0~cairo~cuda~gl~libudev+libxml2~netloc~nvml~opencl+pci~rocm+shared arch=linux-ubuntu18.04-x86_64
[+]  ryhmw2g		  ^libpciaccess@0.16%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  h5cf2g4		      ^util-macros@1.19.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  2hw4ddh		  ^libxml2@2.9.12%gcc@7.5.0~python arch=linux-ubuntu18.04-x86_64
[+]  nplaaps		      ^xz@5.2.5%gcc@7.5.0~pic libs=shared,static arch=linux-ubuntu18.04-x86_64
[+]  xai6pyc	      ^libevent@2.1.12%gcc@7.5.0+openssl arch=linux-ubuntu18.04-x86_64
[+]  3opot4q	      ^numactl@2.0.14%gcc@7.5.0 patches=4e1d78cbbb85de625bad28705e748856033eaafab92a66dffd383a3d7e00cc94,62fc8a8bf7665a60e8f4c93ebbd535647cebf74198f7afafec4c085a8825c006,ff37630df599cfabf0740518b91ec8daaf18e8f288b19adaae5364dc1f6b2296 arch=linux-ubuntu18.04-x86_64
[+]  ux36qlb	      ^openssh@8.7p1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  3lzuqwn		  ^libedit@3.1-20210216%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
 -   ar7ronn	  ^scr@3.0rc2%gcc@7.5.0+bbapi~bbapi_fallback~dw+examples~fortran~ipo+libyogrt+pdsh+shared+tests build_type=RelWithDebInfo cache_base=/dev/shm cntl_base=/dev/shm copy_config=none dev_path=/home/spack/devel-env/scr file_lock=FLOCK resource_manager=SLURM scr_config=scr.conf arch=linux-ubuntu18.04-x86_64
[+]  tioad6w	      ^axl@0.5.0%gcc@7.5.0+bbapi~bbapi_fallback~dw~ipo+shared async_api=daemon build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  6aehk3f		  ^kvtree@1.2.0%gcc@7.5.0~ipo+mpi+shared build_type=RelWithDebInfo file_lock=FLOCK arch=linux-ubuntu18.04-x86_64
[+]  jcs7klx	      ^dtcmp@1.1.3%gcc@7.5.0+shared arch=linux-ubuntu18.04-x86_64
[+]  45q636p		  ^lwgrp@1.0.4%gcc@7.5.0+shared arch=linux-ubuntu18.04-x86_64
[+]  27seins	      ^er@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  no7gfol		  ^rankstr@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  ymbgmh3		  ^redset@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  enyf2gi		  ^shuffile@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  p3d3hsx	      ^libyogrt@1.24%gcc@7.5.0~static scheduler=slurm arch=linux-ubuntu18.04-x86_64
[+]  o245qon		  ^slurm@21-08-1-1%gcc@7.5.0~gtk~hdf5~hwloc~mariadb~pmix+readline~restd sysconfdir=PREFIX/etc arch=linux-ubuntu18.04-x86_64
[+]  5qolphz		      ^curl@7.79.0%gcc@7.5.0~gssapi~ldap~libidn2~librtmp~libssh~libssh2~nghttp2 tls=openssl arch=linux-ubuntu18.04-x86_64
[+]  fp5v742		      ^glib@2.70.0%gcc@7.5.0~libmount patches=8547954e50d0a720fa9794b84c31569df6a7419319b95ac9de0ed861d8969ffd tracing=none arch=linux-ubuntu18.04-x86_64
[+]  2zkxpoq			  ^gettext@0.21%gcc@7.5.0+bzip2+curses+git~libunistring+libxml2+tar+xz arch=linux-ubuntu18.04-x86_64
[+]  otlzkgd			      ^tar@1.34%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  4bz34d3			  ^libffi@3.3%gcc@7.5.0 patches=26f26c6f29a7ce9bf370ad3ab2610f99365b4bdd7b82e7c31df41a3370d685c0 arch=linux-ubuntu18.04-x86_64
[+]  ngg44u2			  ^meson@0.60.0%gcc@7.5.0 patches=aa6c50d5a2aeb1a487d16f6712be4357fefb923aae37ab830699b07338388287 arch=linux-ubuntu18.04-x86_64
[+]  fgf6frb			      ^ninja@1.10.2%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  g2gj6mw				  ^python@3.8.12%gcc@7.5.0+bz2+ctypes+dbm~debug+libxml2+lzma~nis~optimizations+pic+pyexpat+pythoncmd+readline+shared+sqlite3+ssl~tix~tkinter~ucs4+uuid+zlib patches=0d98e93189bc278fbc37a50ed7f183bd8aaf249a8e1670a465f0db6bb4f8cf87,4c2457325f2b608b1b6a2c63087df8c26e07db3e3d493caf36a56f0ecf6fb768,f2fd060afc4b4618fe8104c4c5d771f36dc55b1db5a4623785a4ea707ec72fb4 arch=linux-ubuntu18.04-x86_64
[+]  j3i7qne				      ^expat@2.4.1%gcc@7.5.0+libbsd arch=linux-ubuntu18.04-x86_64
[+]  j5lylsy					  ^libbsd@0.11.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  aq7ydx6					      ^libmd@1.0.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  ckghzv6				      ^sqlite@3.36.0%gcc@7.5.0+column_metadata+fts~functions~rtree arch=linux-ubuntu18.04-x86_64
[+]  c23s54s				      ^util-linux-uuid@2.36.2%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  o52ww56			      ^py-setuptools@58.2.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  cgah7ko			  ^pcre@8.44%gcc@7.5.0~jit+multibyte+utf arch=linux-ubuntu18.04-x86_64
[+]  2dxobcc		      ^json-c@0.15%gcc@7.5.0~ipo build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  nuqiq66		      ^lz4@1.9.3%gcc@7.5.0 libs=shared,static arch=linux-ubuntu18.04-x86_64
[+]  h2wjv26		      ^munge@0.5.14%gcc@7.5.0 localstatedir=PREFIX/var arch=linux-ubuntu18.04-x86_64
[+]  64zlffc			  ^libgcrypt@1.9.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  cexzidc			      ^libgpg-error@1.42%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  km73vx2				  ^gawk@5.1.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  7kpzyzg				      ^gmp@6.2.1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  35qmsm6				      ^mpfr@4.1.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  ievdgld					  ^autoconf-archive@2019.01.06%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  p3is4ct					  ^texinfo@6.5%gcc@7.5.0 patches=12f6edb0c6b270b8c8dba2ce17998c580db01182d871ee32b7b6e4129bd1d23a,1732115f651cff98989cb0215d8f64da5e0f7911ebf0c13b064920f088f2ffe1 arch=linux-ubuntu18.04-x86_64
[+]  6ffspsj	      ^pdsh@2.31%gcc@7.5.0+ssh+static_modules arch=linux-ubuntu18.04-x86_64
[+]  lml7squ	      ^spath@0.1.0%gcc@7.5.0~ipo+mpi+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  k6jhkin	  ^silo@4.10.2%gcc@7.5.0~fortran+fpzip+hdf5+hzip+mpi+pic+shared~silex patches=7b5a1dc2a0e358e667088d77e7caa780967fa8ea60be89c44986605df9990abe,952d3c95fbeaf32355c1c24d831b6c315c5cf29023874127b0f461855046750c arch=linux-ubuntu18.04-x86_64
[+]  vt7sza3	      ^hdf5@1.10.7%gcc@7.5.0~cxx~fortran~hl~ipo~java+mpi+shared~szip~threadsafe+tools api=default build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64

==> Updating view at /home/spack/devel-env/.spack-env/view

Now that we have this done, we tell spack to rebuild both scr and macsio by running spack install.

$ spack install
==> Installing environment /home/spack/devel-env
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pkgconf-1.8.0-ucp6vz7fe6ihtcmqav3vucwgqjwyw7po
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/berkeley-db-18.1.40-ue5lnfmm3yaiwm2jha4pnbg2s4h7jaqb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libiconv-1.16-qi7dxj6rgdydno5mdjzyolz6applztig
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/zlib-1.2.11-3rlgy7ycxtoho44una6o3itgfjltkmpd
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libsigsegv-2.13-g2vgcnev7aspdihdmfbviefdbinclpy7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-macros-1.19.3-h5cf2g4fzeytdsypsm5gsb4h6saddfev
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/xz-5.2.5-nplaapsuxr5djslmxm6sdmaw2xl4d2ti
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libffi-3.3-4bz34d34hhd46kk5a56sxfxsiifstgqm
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libmd-1.0.3-aq7ydx6pf32mhb7f5ekv3saqc63avue4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pcre-8.44-cgah7konnh5573ylmymnl33dqcgoxihf
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lz4-1.9.3-nuqiq664fip3rtr5c6jtzmzlonvm2omg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-archive-2019.01.06-ievdgldrkygwmwhegqpvp4znw4ewf4f4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pdsh-2.31-6ffspsjtiqvzouzj5wno4bqfr3kvs275
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ncurses-6.2-d34lizgt45miuctn4cmx7quklvukdd2w
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-linux-uuid-2.36.2-c23s54sq5hbjqkyia3gbxc6frz5xnu67
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/diffutils-3.8-kg5jymjbqjurpq52nvycbddt5ia5uypy
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/tar-1.34-otlzkgdrugkhzebt75hwibn55g25owfg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/m4-1.4.19-ybvezwzldr6ibw767ihpeoal625y76qb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libxml2-2.9.12-2hw4ddh7dbtl3wcw5hrt4kk2fkwhfuzj
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libbsd-0.11.3-j5lylsyqvmdsqyeroekdwv2l7ayusg66
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libedit-3.1-20210216-3lzuqwnyuelfhjrxpn45akh7huu3ifr5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/readline-8.1-27u6g7pchcquj67llpfzttc6n7e5pfjg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/bzip2-1.0.8-55rtzz4s6m4swr6x7exse22ucbmluwl3
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libtool-2.4.6-2kia6gf4yz6k3vsdqlg5lmp6n5hplrxq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/expat-2.4.1-j3i7qneh3l4itds4i2fi4h3s43ywviln
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gdbm-1.19-oftaepjelizkam37ezxwkuw27clnosqn
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/sqlite-3.36.0-ckghzv6lpov23xcc2fchao54pehnzms5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gettext-0.21-2zkxpoqsacwadhe44zhd5hrozt344yfl
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libpciaccess-0.16-ryhmw2gqeeqclg65uuabqgsgpiac2nm2
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/perl-5.34.0-672tzldkvypvrxirrs5okvjrfvhxzyzv
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hwloc-2.6.0-gedgnpght7xquztmkhthmaid6lbhlz4p
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssl-1.1.1l-lygx3cqqbvl5gkyvfkggphorm7xus2ih
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/texinfo-6.5-p3is4ct3s4brgpdlthexp24lsgxcisuc
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-2.69-7hurwa7ymeksnawbazxutf7k7qvjm772
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/curl-7.79.0-5qolphzwei45fvq5np5xywkjijyy2pqj
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/python-3.8.12-g2gj6mwslk2hfaalmye23emjrpgnxetb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libevent-2.1.12-xai6pycqx4h6n2l7f676q3kwql5zjdaw
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssh-8.7p1-ux36qlbxdga4c5oragb7o5r4y7bsgbpy
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/automake-1.16.3-6rqxcsn5r7kffecp45iumner6vnbbmho
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ninja-1.10.2-fgf6frbnqqlh3ty57lsohkqpp7qs2bcc
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/py-setuptools-58.2.0-o52ww56ua4xm2ttxocye3hhco3pkt7i5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-c-0.15-2dxobcc2dlh22ezwpqojayh7yjxm6xh7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/numactl-2.0.14-3opot4q2nxdmogm7t5pt5wkhvapqex76
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gmp-6.2.1-7kpzyzgpa54nap7kap6cznbyerseariq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-cwx-0.12-2cj3pokgau53ss52t6y52zhft3jennb4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/meson-0.60.0-ngg44u2g42jrh7roi44lzi3h6bngq6s7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openmpi-4.1.1-p5qicacmcy72pjljd4lfdy66kavxp3tv
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/mpfr-4.1.0-35qmsm6i5dl3aukbesu7q4wagsggdle6
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/glib-2.70.0-fp5v74247d4zw5txq3mf5gfif6l2zafr
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hdf5-1.10.7-vt7sza3ycdsw62lk3f2dtnlvmeyihe3r
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lwgrp-1.0.4-45q636plsnkwwadt5wzgweqxwiuzmq5b
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/spath-0.1.0-lml7squ734gduaxlgmtji35j3ipiho3x
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/kvtree-1.2.0-6aehk3fy6juitziyair3p77rchjc7vdn
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/rankstr-0.1.0-no7gfol3i63vc4qi26hfjkexameqpaih
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gawk-5.1.0-km73vx2mpg3yypzj24amottx37cws42d
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/silo-4.10.2-k6jhkinwksprvq3sm5q7awrqefz7acv6
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/dtcmp-1.1.3-jcs7klxz4mprtgg3vixn7346pkz445sf
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/shuffile-0.1.0-enyf2gizxhlgkzplkscl7j2qrgutvckk
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/axl-0.5.0-tioad6wp5iuywmdxnjhvtltp3avwhvky
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/redset-0.1.0-ymbgmh3bvalhkaoe6uuvwrgekb7cqglx
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgpg-error-1.42-cexzidcgh23waigsmbhusasgnpgtxs3c
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/er-0.1.0-27seinsuu6l3hyzgki5quussnyd7zlsq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgcrypt-1.9.3-64zlffccerrhz3nlkxjx63wpzq5fvxg2
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/munge-0.5.14-h2wjv26l5fzghzgjh37s6itdwdsr3cj7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/slurm-21-08-1-1-o245qontgozhxt7crmu56qlzqvpi34be
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libyogrt-1.24-p3d3hsxpsgv7qftiym34g4emus25zci6
==> Installing scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah
==> No binary for scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah found: installing from source
==> No patches needed for scr
==> scr: Executing phase: 'cmake'
==> scr: Executing phase: 'build'
==> scr: Executing phase: 'install'
==> scr: Successfully installed scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah
  Fetch: 0.00s.  Build: 4.74s.	Total: 4.74s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah
==> Installing macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc
==> No binary for macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc found: installing from source
==> Using cached archive: /home/spack/spack/var/spack/cache/_source-cache/archive/a8/a86249b0f10647c0b631773db69568388094605ec1a0af149d9e61e95e6961ec.tar.gz
==> Applied patch /home/spack/spack/var/spack/repos/builtin/packages/macsio/cast.patch
==> macsio: Executing phase: 'cmake'
==> macsio: Executing phase: 'build'
==> macsio: Executing phase: 'install'
==> macsio: Successfully installed macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc
  Fetch: 0.01s.  Build: 3.01s.	Total: 3.03s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc
==> Updating view at /home/spack/devel-env/.spack-env/view

This rebuilds scr from the subdirectory we specified. If your package uses cmake, spack will build the package in a build directory that matches the hash for your package. From here you can change into the appropriate directory and perform your own build/test cycles.

Now, we can develop our code. For the sake of this demo, we’re just going to intentionally introduce an error. Let’s edit a file and remove the first semi-colon we find.

$ $EDITOR scr/src/scr_copy.c

Once you have a development package, spack install also works much like “make”. Since spack knows the source code directory of the package, it checks the filetimes on the source directory to see if we’ve made recent changes. If the file times are newer, it will rebuild scr and any other package that depends on scr.

$ spack install
==> Installing environment /home/spack/devel-env
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pkgconf-1.8.0-ucp6vz7fe6ihtcmqav3vucwgqjwyw7po
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/berkeley-db-18.1.40-ue5lnfmm3yaiwm2jha4pnbg2s4h7jaqb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libiconv-1.16-qi7dxj6rgdydno5mdjzyolz6applztig
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/zlib-1.2.11-3rlgy7ycxtoho44una6o3itgfjltkmpd
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libsigsegv-2.13-g2vgcnev7aspdihdmfbviefdbinclpy7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-macros-1.19.3-h5cf2g4fzeytdsypsm5gsb4h6saddfev
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/xz-5.2.5-nplaapsuxr5djslmxm6sdmaw2xl4d2ti
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libffi-3.3-4bz34d34hhd46kk5a56sxfxsiifstgqm
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libmd-1.0.3-aq7ydx6pf32mhb7f5ekv3saqc63avue4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pcre-8.44-cgah7konnh5573ylmymnl33dqcgoxihf
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lz4-1.9.3-nuqiq664fip3rtr5c6jtzmzlonvm2omg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-archive-2019.01.06-ievdgldrkygwmwhegqpvp4znw4ewf4f4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pdsh-2.31-6ffspsjtiqvzouzj5wno4bqfr3kvs275
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-linux-uuid-2.36.2-c23s54sq5hbjqkyia3gbxc6frz5xnu67
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ncurses-6.2-d34lizgt45miuctn4cmx7quklvukdd2w
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/tar-1.34-otlzkgdrugkhzebt75hwibn55g25owfg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/diffutils-3.8-kg5jymjbqjurpq52nvycbddt5ia5uypy
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/m4-1.4.19-ybvezwzldr6ibw767ihpeoal625y76qb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libxml2-2.9.12-2hw4ddh7dbtl3wcw5hrt4kk2fkwhfuzj
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libbsd-0.11.3-j5lylsyqvmdsqyeroekdwv2l7ayusg66
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libedit-3.1-20210216-3lzuqwnyuelfhjrxpn45akh7huu3ifr5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/readline-8.1-27u6g7pchcquj67llpfzttc6n7e5pfjg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/bzip2-1.0.8-55rtzz4s6m4swr6x7exse22ucbmluwl3
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libtool-2.4.6-2kia6gf4yz6k3vsdqlg5lmp6n5hplrxq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/expat-2.4.1-j3i7qneh3l4itds4i2fi4h3s43ywviln
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gdbm-1.19-oftaepjelizkam37ezxwkuw27clnosqn
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/sqlite-3.36.0-ckghzv6lpov23xcc2fchao54pehnzms5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gettext-0.21-2zkxpoqsacwadhe44zhd5hrozt344yfl
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libpciaccess-0.16-ryhmw2gqeeqclg65uuabqgsgpiac2nm2
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/perl-5.34.0-672tzldkvypvrxirrs5okvjrfvhxzyzv
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hwloc-2.6.0-gedgnpght7xquztmkhthmaid6lbhlz4p
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssl-1.1.1l-lygx3cqqbvl5gkyvfkggphorm7xus2ih
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/texinfo-6.5-p3is4ct3s4brgpdlthexp24lsgxcisuc
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-2.69-7hurwa7ymeksnawbazxutf7k7qvjm772
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libevent-2.1.12-xai6pycqx4h6n2l7f676q3kwql5zjdaw
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssh-8.7p1-ux36qlbxdga4c5oragb7o5r4y7bsgbpy
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/python-3.8.12-g2gj6mwslk2hfaalmye23emjrpgnxetb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/curl-7.79.0-5qolphzwei45fvq5np5xywkjijyy2pqj
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/automake-1.16.3-6rqxcsn5r7kffecp45iumner6vnbbmho
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-c-0.15-2dxobcc2dlh22ezwpqojayh7yjxm6xh7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ninja-1.10.2-fgf6frbnqqlh3ty57lsohkqpp7qs2bcc
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/py-setuptools-58.2.0-o52ww56ua4xm2ttxocye3hhco3pkt7i5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/numactl-2.0.14-3opot4q2nxdmogm7t5pt5wkhvapqex76
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-cwx-0.12-2cj3pokgau53ss52t6y52zhft3jennb4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gmp-6.2.1-7kpzyzgpa54nap7kap6cznbyerseariq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/meson-0.60.0-ngg44u2g42jrh7roi44lzi3h6bngq6s7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openmpi-4.1.1-p5qicacmcy72pjljd4lfdy66kavxp3tv
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/mpfr-4.1.0-35qmsm6i5dl3aukbesu7q4wagsggdle6
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/glib-2.70.0-fp5v74247d4zw5txq3mf5gfif6l2zafr
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/kvtree-1.2.0-6aehk3fy6juitziyair3p77rchjc7vdn
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hdf5-1.10.7-vt7sza3ycdsw62lk3f2dtnlvmeyihe3r
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lwgrp-1.0.4-45q636plsnkwwadt5wzgweqxwiuzmq5b
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/spath-0.1.0-lml7squ734gduaxlgmtji35j3ipiho3x
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/rankstr-0.1.0-no7gfol3i63vc4qi26hfjkexameqpaih
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gawk-5.1.0-km73vx2mpg3yypzj24amottx37cws42d
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/shuffile-0.1.0-enyf2gizxhlgkzplkscl7j2qrgutvckk
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/axl-0.5.0-tioad6wp5iuywmdxnjhvtltp3avwhvky
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/silo-4.10.2-k6jhkinwksprvq3sm5q7awrqefz7acv6
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/dtcmp-1.1.3-jcs7klxz4mprtgg3vixn7346pkz445sf
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/redset-0.1.0-ymbgmh3bvalhkaoe6uuvwrgekb7cqglx
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgpg-error-1.42-cexzidcgh23waigsmbhusasgnpgtxs3c
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/er-0.1.0-27seinsuu6l3hyzgki5quussnyd7zlsq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgcrypt-1.9.3-64zlffccerrhz3nlkxjx63wpzq5fvxg2
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/munge-0.5.14-h2wjv26l5fzghzgjh37s6itdwdsr3cj7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/slurm-21-08-1-1-o245qontgozhxt7crmu56qlzqvpi34be
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libyogrt-1.24-p3d3hsxpsgv7qftiym34g4emus25zci6
==> Installing scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah
==> No binary for scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah found: installing from source
==> No patches needed for scr
==> scr: Executing phase: 'cmake'
==> scr: Executing phase: 'build'
==> Error: ProcessError: Command exited with status 2:
    'make' '-j8'

6 errors found in build log:
     513    make[2]: Nothing to be done for 'examples/CMakeFiles/test_api.dir/build'.
     514    make[2]: Leaving directory '/home/spack/devel-env/scr/spack-build-ar7ronn'
     515    [ 91%] Built target test_api_multiple
     516    [ 95%] Built target test_config
     517    [ 95%] Built target test_ckpt
     518    [ 98%] Built target test_api
  >> 519    /home/spack/devel-env/scr/src/scr_copy.c:53:1: error: expected ',' or ';' before 'int'
     520     int print_usage()
     521     ^~~
     522    /home/spack/devel-env/scr/src/scr_copy.c: In function 'process_args':
     523    /home/spack/devel-env/scr/src/scr_copy.c:130:9: warning: implicit declaration of function 'print_usage' [-Wimplicit-function-declaration]
     524	     print_usage();
     525	     ^~~~~~~~~~~
  >> 526    src/CMakeFiles/scr_copy.dir/build.make:78: recipe for target 'src/CMakeFiles/scr_copy.dir/scr_copy.c.o' failed
  >> 527    make[2]: *** [src/CMakeFiles/scr_copy.dir/scr_copy.c.o] Error 1
     528    make[2]: Leaving directory '/home/spack/devel-env/scr/spack-build-ar7ronn'
  >> 529    CMakeFiles/Makefile2:1364: recipe for target 'src/CMakeFiles/scr_copy.dir/all' failed
  >> 530    make[1]: *** [src/CMakeFiles/scr_copy.dir/all] Error 2
     531    make[1]: Leaving directory '/home/spack/devel-env/scr/spack-build-ar7ronn'
     532    Makefile:148: recipe for target 'all' failed
  >> 533    make: *** [all] Error 2
     534    ==> scr: Executing phase: 'install'
     535    ==> [2021-11-09-21:39:32.190893] 'make' '-j8' 'install'
     536    /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea/bin/cmake -S/home/spack/devel-env/sc
	    r -B/home/spack/devel-env/scr/spack-build-ar7ronn --check-build-system CMakeFiles/Makefile.cmake 0
     537    /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea/bin/cmake -E cmake_progress_start /h
	    ome/spack/devel-env/scr/spack-build-ar7ronn/CMakeFiles /home/spack/devel-env/scr/spack-build-ar7ronn//CMakeFiles/progress.marks
     538    make  -f CMakeFiles/Makefile2 all
     539    make[1]: Entering directory '/home/spack/devel-env/scr/spack-build-ar7ronn'

See build log for details:
  /home/spack/devel-env/scr/spack-build-out.txt

==> Warning: Skipping build of macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc since scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah failed
==> Error: macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc: Package was not installed
==> Error: Installation request failed.  Refer to reported errors for failing package(s).

Here, the build failed as expected. We can look at the output for the build in scr/spack-build-out.txt to find out why, or we can launch a shell directly with the appropriate environment variables to figure out what went wrong by using spack build-env scr@2.0 -- bash. If that’s too much to remember, then sourcing scr/spack-build-env.txt will also set all the appropriate environment variables so we can diagnose the build ourselves. Now let’s fix it and rebuild directly.

$ $EDITOR scr/src/scr_copy.c
$ spack install
==> Installing environment /home/spack/devel-env
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pkgconf-1.8.0-ucp6vz7fe6ihtcmqav3vucwgqjwyw7po
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/berkeley-db-18.1.40-ue5lnfmm3yaiwm2jha4pnbg2s4h7jaqb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libiconv-1.16-qi7dxj6rgdydno5mdjzyolz6applztig
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/zlib-1.2.11-3rlgy7ycxtoho44una6o3itgfjltkmpd
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libsigsegv-2.13-g2vgcnev7aspdihdmfbviefdbinclpy7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-macros-1.19.3-h5cf2g4fzeytdsypsm5gsb4h6saddfev
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/xz-5.2.5-nplaapsuxr5djslmxm6sdmaw2xl4d2ti
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libffi-3.3-4bz34d34hhd46kk5a56sxfxsiifstgqm
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libmd-1.0.3-aq7ydx6pf32mhb7f5ekv3saqc63avue4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pcre-8.44-cgah7konnh5573ylmymnl33dqcgoxihf
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lz4-1.9.3-nuqiq664fip3rtr5c6jtzmzlonvm2omg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-archive-2019.01.06-ievdgldrkygwmwhegqpvp4znw4ewf4f4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/pdsh-2.31-6ffspsjtiqvzouzj5wno4bqfr3kvs275
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ncurses-6.2-d34lizgt45miuctn4cmx7quklvukdd2w
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/util-linux-uuid-2.36.2-c23s54sq5hbjqkyia3gbxc6frz5xnu67
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/tar-1.34-otlzkgdrugkhzebt75hwibn55g25owfg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/diffutils-3.8-kg5jymjbqjurpq52nvycbddt5ia5uypy
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/m4-1.4.19-ybvezwzldr6ibw767ihpeoal625y76qb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libxml2-2.9.12-2hw4ddh7dbtl3wcw5hrt4kk2fkwhfuzj
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libbsd-0.11.3-j5lylsyqvmdsqyeroekdwv2l7ayusg66
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libedit-3.1-20210216-3lzuqwnyuelfhjrxpn45akh7huu3ifr5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/readline-8.1-27u6g7pchcquj67llpfzttc6n7e5pfjg
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/bzip2-1.0.8-55rtzz4s6m4swr6x7exse22ucbmluwl3
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libtool-2.4.6-2kia6gf4yz6k3vsdqlg5lmp6n5hplrxq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/expat-2.4.1-j3i7qneh3l4itds4i2fi4h3s43ywviln
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gdbm-1.19-oftaepjelizkam37ezxwkuw27clnosqn
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/sqlite-3.36.0-ckghzv6lpov23xcc2fchao54pehnzms5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gettext-0.21-2zkxpoqsacwadhe44zhd5hrozt344yfl
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libpciaccess-0.16-ryhmw2gqeeqclg65uuabqgsgpiac2nm2
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/perl-5.34.0-672tzldkvypvrxirrs5okvjrfvhxzyzv
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hwloc-2.6.0-gedgnpght7xquztmkhthmaid6lbhlz4p
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/texinfo-6.5-p3is4ct3s4brgpdlthexp24lsgxcisuc
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/autoconf-2.69-7hurwa7ymeksnawbazxutf7k7qvjm772
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssl-1.1.1l-lygx3cqqbvl5gkyvfkggphorm7xus2ih
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/automake-1.16.3-6rqxcsn5r7kffecp45iumner6vnbbmho
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libevent-2.1.12-xai6pycqx4h6n2l7f676q3kwql5zjdaw
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/curl-7.79.0-5qolphzwei45fvq5np5xywkjijyy2pqj
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/python-3.8.12-g2gj6mwslk2hfaalmye23emjrpgnxetb
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/cmake-3.21.4-anj6kcxdxzhfufoypya56mmsmxlyucea
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openssh-8.7p1-ux36qlbxdga4c5oragb7o5r4y7bsgbpy
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/numactl-2.0.14-3opot4q2nxdmogm7t5pt5wkhvapqex76
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-cwx-0.12-2cj3pokgau53ss52t6y52zhft3jennb4
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gmp-6.2.1-7kpzyzgpa54nap7kap6cznbyerseariq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/py-setuptools-58.2.0-o52ww56ua4xm2ttxocye3hhco3pkt7i5
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/ninja-1.10.2-fgf6frbnqqlh3ty57lsohkqpp7qs2bcc
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/json-c-0.15-2dxobcc2dlh22ezwpqojayh7yjxm6xh7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/openmpi-4.1.1-p5qicacmcy72pjljd4lfdy66kavxp3tv
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/mpfr-4.1.0-35qmsm6i5dl3aukbesu7q4wagsggdle6
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/meson-0.60.0-ngg44u2g42jrh7roi44lzi3h6bngq6s7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/hdf5-1.10.7-vt7sza3ycdsw62lk3f2dtnlvmeyihe3r
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/rankstr-0.1.0-no7gfol3i63vc4qi26hfjkexameqpaih
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/lwgrp-1.0.4-45q636plsnkwwadt5wzgweqxwiuzmq5b
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/spath-0.1.0-lml7squ734gduaxlgmtji35j3ipiho3x
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/kvtree-1.2.0-6aehk3fy6juitziyair3p77rchjc7vdn
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/gawk-5.1.0-km73vx2mpg3yypzj24amottx37cws42d
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/glib-2.70.0-fp5v74247d4zw5txq3mf5gfif6l2zafr
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/silo-4.10.2-k6jhkinwksprvq3sm5q7awrqefz7acv6
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/dtcmp-1.1.3-jcs7klxz4mprtgg3vixn7346pkz445sf
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/shuffile-0.1.0-enyf2gizxhlgkzplkscl7j2qrgutvckk
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/axl-0.5.0-tioad6wp5iuywmdxnjhvtltp3avwhvky
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/redset-0.1.0-ymbgmh3bvalhkaoe6uuvwrgekb7cqglx
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgpg-error-1.42-cexzidcgh23waigsmbhusasgnpgtxs3c
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/er-0.1.0-27seinsuu6l3hyzgki5quussnyd7zlsq
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libgcrypt-1.9.3-64zlffccerrhz3nlkxjx63wpzq5fvxg2
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/munge-0.5.14-h2wjv26l5fzghzgjh37s6itdwdsr3cj7
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/slurm-21-08-1-1-o245qontgozhxt7crmu56qlzqvpi34be
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/libyogrt-1.24-p3d3hsxpsgv7qftiym34g4emus25zci6
==> Installing scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah
==> No binary for scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah found: installing from source
==> No patches needed for scr
==> scr: Executing phase: 'cmake'
==> scr: Executing phase: 'build'
==> scr: Executing phase: 'install'
==> scr: Successfully installed scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah
  Fetch: 0.00s.  Build: 1.48s.	Total: 1.48s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/scr-3.0rc2-ar7ronndwqp42ayoqpwfanw27m3xs6ah
==> Installing macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc
==> No binary for macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc found: installing from source
==> Using cached archive: /home/spack/spack/var/spack/cache/_source-cache/archive/a8/a86249b0f10647c0b631773db69568388094605ec1a0af149d9e61e95e6961ec.tar.gz
==> Applied patch /home/spack/spack/var/spack/repos/builtin/packages/macsio/cast.patch
==> macsio: Executing phase: 'cmake'
==> macsio: Executing phase: 'build'
==> macsio: Executing phase: 'install'
==> macsio: Successfully installed macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc
  Fetch: 0.01s.  Build: 3.10s.	Total: 3.12s.
[+] /home/spack/spack/opt/spack/linux-ubuntu18.04-x86_64/gcc-7.5.0/macsio-1.1-b6t7ybvx5y6gmolx6wnkuu7pfskuceuc
==> Warning: Module file /home/spack/spack/share/spack/modules/linux-ubuntu18.04-x86_64/macsio-1.1-gcc-7.5.0-b6t7ybv exists and will not be overwritten

You’ll notice here that spack rebuilt both scr and macsio, as expected.

Taking advantage of iterative builds with spack requires cooperation from your build system. When spack performs a rebuild on a development package, it reruns all the build stages for your package without cleaning the source and build directories to a pristine state. If your build system can take advantage of the previously compiled object files then you’ll end up with an iterative build.

  • If your package just uses make, you also should get iterative builds for free when running spack develop.
  • If your package uses cmake with the typical cmake / build / install build stages, you’ll get iterative builds for free with spack because cmake doesn’t modify the filetime on the CMakeCache.txt file if your cmake flags haven’t changed.
  • If your package uses autoconf, then rerunning the typical autoreconf stage typically modifies the filetime of config.h, which can trigger a cascade of rebuilding.

Multiple packages can also be marked as develop. If we were co-developing macsio, we could run

$ spack develop macsio@1.1
==> Configuring spec macsio@1.1 for development at path macsio
==> Using cached archive: /home/spack/spack/var/spack/cache/_source-cache/archive/a8/a86249b0f10647c0b631773db69568388094605ec1a0af149d9e61e95e6961ec.tar.gz
$ spack concretize -f
==> Starting concretization
==> Environment concretized in 11.16 seconds.
==> Concretized macsio+scr
 -   sc4bewu  macsio@1.1%gcc@7.5.0~exodus~hdf5~ipo+mpi~pdb+scr+silo~szip~typhonio~zfp~zlib build_type=RelWithDebInfo dev_path=/home/spack/devel-env/macsio patches=59479b946e5bbf677e814dc1cde12b38dd3b083fec8c543fc6d3abf9f73dbbfa arch=linux-ubuntu18.04-x86_64
[+]  anj6kcx	  ^cmake@3.21.4%gcc@7.5.0~doc+ncurses+openssl+ownlibs~qt build_type=Release arch=linux-ubuntu18.04-x86_64
[+]  d34lizg	      ^ncurses@6.2%gcc@7.5.0~symlinks+termlib abi=none arch=linux-ubuntu18.04-x86_64
[+]  ucp6vz7		  ^pkgconf@1.8.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  lygx3cq	      ^openssl@1.1.1l%gcc@7.5.0~docs certs=system arch=linux-ubuntu18.04-x86_64
[+]  672tzld		  ^perl@5.34.0%gcc@7.5.0+cpanm+shared+threads arch=linux-ubuntu18.04-x86_64
[+]  ue5lnfm		      ^berkeley-db@18.1.40%gcc@7.5.0+cxx~docs+stl patches=b231fcc4d5cff05e5c3a4814f6a5af0e9a966428dc2176540d2c05aff41de522 arch=linux-ubuntu18.04-x86_64
[+]  55rtzz4		      ^bzip2@1.0.8%gcc@7.5.0~debug~pic+shared arch=linux-ubuntu18.04-x86_64
[+]  kg5jymj			  ^diffutils@3.8%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  qi7dxj6			      ^libiconv@1.16%gcc@7.5.0 libs=shared,static arch=linux-ubuntu18.04-x86_64
[+]  oftaepj		      ^gdbm@1.19%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  27u6g7p			  ^readline@8.1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  3rlgy7y		      ^zlib@1.2.11%gcc@7.5.0+optimize+pic+shared arch=linux-ubuntu18.04-x86_64
[+]  2cj3pok	  ^json-cwx@0.12%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  7hurwa7	      ^autoconf@2.69%gcc@7.5.0 patches=35c449281546376449766f92d49fc121ca50e330e60fefcfc9be2af3253082c2,7793209b33013dc0f81208718c68440c5aae80e7a1c4b8d336e382525af791a7,a49dd5bac3b62daa0ff688ab4d508d71dbd2f4f8d7e2a02321926346161bf3ee arch=linux-ubuntu18.04-x86_64
[+]  ybvezwz		  ^m4@1.4.19%gcc@7.5.0+sigsegv patches=9dc5fbd0d5cb1037ab1e6d0ecc74a30df218d0a94bdd5a02759a97f62daca573,bfdffa7c2eb01021d5849b36972c069693654ad826c1a20b53534009a4ec7a89 arch=linux-ubuntu18.04-x86_64
[+]  g2vgcne		      ^libsigsegv@2.13%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  6rqxcsn	      ^automake@1.16.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  2kia6gf	      ^libtool@2.4.6%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  p5qicac	  ^openmpi@4.1.1%gcc@7.5.0~atomics~cuda~cxx~cxx_exceptions+gpfs~internal-hwloc~java~legacylaunchers~lustre~memchecker~pmi~pmix~singularity~sqlite3+static~thread_multiple+vt+wrapper-rpath fabrics=none schedulers=none arch=linux-ubuntu18.04-x86_64
[+]  gedgnpg	      ^hwloc@2.6.0%gcc@7.5.0~cairo~cuda~gl~libudev+libxml2~netloc~nvml~opencl+pci~rocm+shared arch=linux-ubuntu18.04-x86_64
[+]  ryhmw2g		  ^libpciaccess@0.16%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  h5cf2g4		      ^util-macros@1.19.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  2hw4ddh		  ^libxml2@2.9.12%gcc@7.5.0~python arch=linux-ubuntu18.04-x86_64
[+]  nplaaps		      ^xz@5.2.5%gcc@7.5.0~pic libs=shared,static arch=linux-ubuntu18.04-x86_64
[+]  xai6pyc	      ^libevent@2.1.12%gcc@7.5.0+openssl arch=linux-ubuntu18.04-x86_64
[+]  3opot4q	      ^numactl@2.0.14%gcc@7.5.0 patches=4e1d78cbbb85de625bad28705e748856033eaafab92a66dffd383a3d7e00cc94,62fc8a8bf7665a60e8f4c93ebbd535647cebf74198f7afafec4c085a8825c006,ff37630df599cfabf0740518b91ec8daaf18e8f288b19adaae5364dc1f6b2296 arch=linux-ubuntu18.04-x86_64
[+]  ux36qlb	      ^openssh@8.7p1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  3lzuqwn		  ^libedit@3.1-20210216%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  ar7ronn	  ^scr@3.0rc2%gcc@7.5.0+bbapi~bbapi_fallback~dw+examples~fortran~ipo+libyogrt+pdsh+shared+tests build_type=RelWithDebInfo cache_base=/dev/shm cntl_base=/dev/shm copy_config=none dev_path=/home/spack/devel-env/scr file_lock=FLOCK resource_manager=SLURM scr_config=scr.conf arch=linux-ubuntu18.04-x86_64
[+]  tioad6w	      ^axl@0.5.0%gcc@7.5.0+bbapi~bbapi_fallback~dw~ipo+shared async_api=daemon build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  6aehk3f		  ^kvtree@1.2.0%gcc@7.5.0~ipo+mpi+shared build_type=RelWithDebInfo file_lock=FLOCK arch=linux-ubuntu18.04-x86_64
[+]  jcs7klx	      ^dtcmp@1.1.3%gcc@7.5.0+shared arch=linux-ubuntu18.04-x86_64
[+]  45q636p		  ^lwgrp@1.0.4%gcc@7.5.0+shared arch=linux-ubuntu18.04-x86_64
[+]  27seins	      ^er@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  no7gfol		  ^rankstr@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  ymbgmh3		  ^redset@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  enyf2gi		  ^shuffile@0.1.0%gcc@7.5.0~ipo+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  p3d3hsx	      ^libyogrt@1.24%gcc@7.5.0~static scheduler=slurm arch=linux-ubuntu18.04-x86_64
[+]  o245qon		  ^slurm@21-08-1-1%gcc@7.5.0~gtk~hdf5~hwloc~mariadb~pmix+readline~restd sysconfdir=PREFIX/etc arch=linux-ubuntu18.04-x86_64
[+]  5qolphz		      ^curl@7.79.0%gcc@7.5.0~gssapi~ldap~libidn2~librtmp~libssh~libssh2~nghttp2 tls=openssl arch=linux-ubuntu18.04-x86_64
[+]  fp5v742		      ^glib@2.70.0%gcc@7.5.0~libmount patches=8547954e50d0a720fa9794b84c31569df6a7419319b95ac9de0ed861d8969ffd tracing=none arch=linux-ubuntu18.04-x86_64
[+]  2zkxpoq			  ^gettext@0.21%gcc@7.5.0+bzip2+curses+git~libunistring+libxml2+tar+xz arch=linux-ubuntu18.04-x86_64
[+]  otlzkgd			      ^tar@1.34%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  4bz34d3			  ^libffi@3.3%gcc@7.5.0 patches=26f26c6f29a7ce9bf370ad3ab2610f99365b4bdd7b82e7c31df41a3370d685c0 arch=linux-ubuntu18.04-x86_64
[+]  ngg44u2			  ^meson@0.60.0%gcc@7.5.0 patches=aa6c50d5a2aeb1a487d16f6712be4357fefb923aae37ab830699b07338388287 arch=linux-ubuntu18.04-x86_64
[+]  fgf6frb			      ^ninja@1.10.2%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  g2gj6mw				  ^python@3.8.12%gcc@7.5.0+bz2+ctypes+dbm~debug+libxml2+lzma~nis~optimizations+pic+pyexpat+pythoncmd+readline+shared+sqlite3+ssl~tix~tkinter~ucs4+uuid+zlib patches=0d98e93189bc278fbc37a50ed7f183bd8aaf249a8e1670a465f0db6bb4f8cf87,4c2457325f2b608b1b6a2c63087df8c26e07db3e3d493caf36a56f0ecf6fb768,f2fd060afc4b4618fe8104c4c5d771f36dc55b1db5a4623785a4ea707ec72fb4 arch=linux-ubuntu18.04-x86_64
[+]  j3i7qne				      ^expat@2.4.1%gcc@7.5.0+libbsd arch=linux-ubuntu18.04-x86_64
[+]  j5lylsy					  ^libbsd@0.11.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  aq7ydx6					      ^libmd@1.0.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  ckghzv6				      ^sqlite@3.36.0%gcc@7.5.0+column_metadata+fts~functions~rtree arch=linux-ubuntu18.04-x86_64
[+]  c23s54s				      ^util-linux-uuid@2.36.2%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  o52ww56			      ^py-setuptools@58.2.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  cgah7ko			  ^pcre@8.44%gcc@7.5.0~jit+multibyte+utf arch=linux-ubuntu18.04-x86_64
[+]  2dxobcc		      ^json-c@0.15%gcc@7.5.0~ipo build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  nuqiq66		      ^lz4@1.9.3%gcc@7.5.0 libs=shared,static arch=linux-ubuntu18.04-x86_64
[+]  h2wjv26		      ^munge@0.5.14%gcc@7.5.0 localstatedir=PREFIX/var arch=linux-ubuntu18.04-x86_64
[+]  64zlffc			  ^libgcrypt@1.9.3%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  cexzidc			      ^libgpg-error@1.42%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  km73vx2				  ^gawk@5.1.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  7kpzyzg				      ^gmp@6.2.1%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  35qmsm6				      ^mpfr@4.1.0%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  ievdgld					  ^autoconf-archive@2019.01.06%gcc@7.5.0 arch=linux-ubuntu18.04-x86_64
[+]  p3is4ct					  ^texinfo@6.5%gcc@7.5.0 patches=12f6edb0c6b270b8c8dba2ce17998c580db01182d871ee32b7b6e4129bd1d23a,1732115f651cff98989cb0215d8f64da5e0f7911ebf0c13b064920f088f2ffe1 arch=linux-ubuntu18.04-x86_64
[+]  6ffspsj	      ^pdsh@2.31%gcc@7.5.0+ssh+static_modules arch=linux-ubuntu18.04-x86_64
[+]  lml7squ	      ^spath@0.1.0%gcc@7.5.0~ipo+mpi+shared build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64
[+]  k6jhkin	  ^silo@4.10.2%gcc@7.5.0~fortran+fpzip+hdf5+hzip+mpi+pic+shared~silex patches=7b5a1dc2a0e358e667088d77e7caa780967fa8ea60be89c44986605df9990abe,952d3c95fbeaf32355c1c24d831b6c315c5cf29023874127b0f461855046750c arch=linux-ubuntu18.04-x86_64
[+]  vt7sza3	      ^hdf5@1.10.7%gcc@7.5.0~cxx~fortran~hl~ipo~java+mpi+shared~szip~threadsafe+tools api=default build_type=RelWithDebInfo arch=linux-ubuntu18.04-x86_64

==> Updating view at /home/spack/devel-env/.spack-env/view

Using development workflows also lets us ship our whole development process to another developer on the team. They can simply take our spack.yaml, create a new environment, and use this to replicate our build process. For example, we’ll make another development environment here.

$ cd ~
$ mkdir devel-other
$ cd devel-other
$ cp ../devel-env/spack.yaml .
$ spacktivate .
$ spack develop
==> Using cached archive: /home/spack/spack/var/spack/cache/_source-cache/archive/4b/4b2a718af56b3683e428d25a2269c038e9452db734221d370e3023a491477fad.tar.gz
==> Using cached archive: /home/spack/spack/var/spack/cache/_source-cache/archive/a8/a86249b0f10647c0b631773db69568388094605ec1a0af149d9e61e95e6961ec.tar.gz
$ ls
macsio	scr  spack.yaml

Here, spack develop with no arguments will check out or download the source code and place it in the appropriate places.

When we’re done developing, we simply tell spack that it no longer needs to keep a development version of the package.

$ spack undevelop scr macsio
==> Removing scr from environment /home/spack/devel-other development specs
==> Removing macsio from environment /home/spack/devel-other development specs
==> Updating view at /home/spack/devel-other/.spack-env/view

Workflow Summary

Use the spack develop command with an environment to make a reproducible build environment for your development workflow. Spack will set up all the dependencies for you and link all your packages together. Within a development environment, spack install works similar to make in that it will check file times to rebuild the minimum number of spack packages necessary to reflect the changes to your build.