fix race condition when building OpenBLAS

see spack/spack#35395 and OpenMathLib/OpenBLAS#3899

EESSI-pilot-install-software.sh

@@ -210,6 +210,25 @@ fi
 
 echo_green "All set, let's start installing some software in ${EASYBUILD_INSTALLPATH}..."
 
+# we try to use a modified ec file for OpenBLAS shipped with this PR
+if [[ $GENERIC -eq 1 ]]; then
+    echo ">> Installing modified OpenBLAS..."
+    ok_msg="Done with OpenBLAS (GENERIC architecture)!"
+    fail_msg="Installation of OpenBLAS (GENERIC architecture) failed!"
+    echo_yellow ">> Using https://github.com/easybuilders/easybuild-easyblocks/pull/1946 to build generic OpenBLAS."
+    #$EB --include-easyblocks-from-pr 1946 OpenBLAS-0.3.15-GCC-10.3.0.eb --robot
+    $EB --include-easyblocks easyblocks/o/openblas-pr1946-cc74e45.py ./OpenBLAS-0.3.15-GCC-10.3.0.eb --robot
+    check_exit_code $? "${ok_msg}" "${fail_msg}"
+else
+    echo ">> Installing modified OpenBLAS..."
+    ok_msg="Done with OpenBLAS (NON-GENERIC architecture)!"
+    fail_msg="Installation of OpenBLAS (NON-GENERIC architecture) failed!"
+    echo_yellow ">> Using https://github.com/easybuilders/easybuild-easyblocks/pull/1946 to build generic OpenBLAS."
+    #$EB --include-easyblocks-from-pr 1946 OpenBLAS-0.3.15-GCC-10.3.0.eb --robot
+    $EB ./OpenBLAS-0.3.15-GCC-10.3.0.eb --robot
+    check_exit_code $? "${ok_msg}" "${fail_msg}"
+fi
+
 # add OpenBLAS: requires special handling for GENERIC CPU targets
 # If we're building OpenBLAS for GENERIC, we need https://github.com/easybuilders/easybuild-easyblocks/pull/1946
 if [[ $GENERIC -eq 1 ]]; then

OpenBLAS-0.3.15-GCC-10.3.0.eb

@@ -0,0 +1,38 @@
+name = 'OpenBLAS'
+version = '0.3.15'
+
+homepage = 'https://xianyi.github.com/OpenBLAS/'
+description = "OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version."
+
+toolchain = {'name': 'GCC', 'version': '10.3.0'}
+
+source_urls = [
+    # order matters, trying to download the large.tgz/timing.tgz LAPACK tarballs from GitHub causes trouble
+    'https://www.netlib.org/lapack/timing/',
+    'https://github.com/xianyi/OpenBLAS/archive/',
+]
+sources = ['v%(version)s.tar.gz']
+patches = [
+    ('large.tgz', '.'),
+    ('timing.tgz', '.'),
+    'OpenBLAS-%(version)s_icelake-detection.patch',
+    'OpenBLAS-%(version)s_fix-aarch64.patch',
+    'OpenBLAS-%(version)s_workaround-gcc-miscompilation.patch',
+    'patches/OpenBLAS-%(version)s_fix-race-build-targets.patch',
+
+]
+checksums = [
+    '30a99dec977594b387a17f49904523e6bc8dd88bd247266e83485803759e4bbe',  # v0.3.15.tar.gz
+    'f328d88b7fa97722f271d7d0cfea1c220e0f8e5ed5ff01d8ef1eb51d6f4243a1',  # large.tgz
+    '999c65f8ea8bd4eac7f1c7f3463d4946917afd20a997807300fe35d70122f3af',  # timing.tgz
+    'aa96e1c3b1532dbafe4b6e8591688ef200e99304a902851f342cb9d467219762',  # OpenBLAS-0.3.15_icelake-detection.patch
+    'ba7bd45af9fe0516f8c9b1cf047eec7b833996e481bc925d4fb2563865d3db38',  # OpenBLAS-0.3.15_fix-aarch64.patch
+    # OpenBLAS-0.3.15_workaround-gcc-miscompilation.patch
+    'e6b326fb8c4a8a6fd07741d9983c37a72c55c9ff9a4f74a80e1352ce5f975971',
+    '7478ea187620591c0485bcc713a31d9667c19b0a90a7b2391e8cbffc5281d250',  # OpenBLAS-0.3.15_fix-race-build-targets.patch
+]
+
+# extensive testing can be enabled by uncommenting the line below
+# runtest = 'PATH=.:$PATH lapack-timing'
+
+moduleclass = 'numlib'

patches/fix-race-build-targets.patch

@@ -0,0 +1,14 @@
+diff --git a/Makefile b/Makefile
+index 555d1c46..d90c2d37 100644
+--- a/Makefile
++++ b/Makefile
+@@ -39,6 +39,9 @@ SUBDIRS_ALL = $(SUBDIRS) test ctest utest exports benchmark ../laswp ../bench cp
+ .PHONY : all libs netlib $(RELA) test ctest shared install
+ .NOTPARALLEL : all libs $(RELA) prof lapack-test install blas-test
+
++shared: libs netlib $(RELA)
++tests: libs netlib $(RELA) shared
++
+ all :: libs netlib $(RELA) tests shared
+ 	@echo
+ 	@echo " OpenBLAS build complete. ($(LIB_COMPONENTS))"