rename build_targets to build_cmd_targets in ConfigureMake as this clashes with the use in the Clang and LLVM easyblocks

[branfosj]

(created using eb --new-pr)

Alternative to #2478.

#2449 added the functionality to build for multiple targets. This means that the items in build_targets are looped over and run as separate builds. However, the LLVM and Clang easyblocks use build_targets to set the machine types to build for in the CMake configure step. Without it we see make X86 -j 12 when building and that leads to the error make: *** No rule to make target 'X86'. Stop.

[branfosj]

Test report by @branfosj

Overview of tested easyconfigs (in order)

• SUCCESS LLVM-11.1.0-GCCcore-10.3.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
bear-pg0206u05a.bear.cluster - Linux RHEL 8.3, x86_64, Intel(R) Xeon(R) Gold 6248 CPU @ 2.50GHz (cascadelake), Python 3.6.8
See https://gist.github.com/1d8ab8da65acc502c7a6abe53b887886 for a full test report.

[SebastianAchilles]

Test report by @SebastianAchilles

Overview of tested easyconfigs (in order)

• SUCCESS LLVM-11.1.0-GCCcore-10.3.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
jrlogin11.jureca - Linux centos linux 8.3.2011, x86_64, AMD EPYC 7742 64-Core Processor, Python 3.6.8
See https://gist.github.com/03894c45296a98660c99052fea07420b for a full test report.

[SebastianAchilles]

Test report by @SebastianAchilles

Overview of tested easyconfigs (in order)

• SUCCESS LLVM-11.1.0-GCCcore-10.3.0.eb
• SUCCESS LLVM-11.0.0-GCCcore-10.2.0.eb
• SUCCESS LLVM-10.0.1-GCCcore-10.2.0.eb
• SUCCESS LLVM-9.0.1-GCCcore-9.3.0.eb
• SUCCESS Clang-11.0.1-GCCcore-10.2.0.eb
• SUCCESS Clang-11.0.0-GCCcore-9.3.0.eb
• SUCCESS Clang-10.0.1-GCCcore-9.3.0.eb

Build succeeded for 7 out of 7 (7 easyconfigs in total)
rocky8-eb - Linux rocky linux 8.4, x86_64, Intel(R) Core(TM) i7-6900K CPU @ 3.20GHz (broadwell), Python 3.6.8
See https://gist.github.com/71f7a3b3df2214c3561682200a4a6007 for a full test report.

[boegel]

@branfosj This needs a merge conflict fix after #2480

[boegel]

cc'ing @mboisson since he issued #2449

[boegel]

lgtm

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS PRINSEQ-0.20.4-foss-2018b-Perl-5.28.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node2618.swalot.os - Linux centos linux 7.9.2009, x86_64, Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz (haswell), Python 3.6.8
See https://gist.github.com/a52c44fc58252817149f94366eb95e27 for a full test report.