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llvmPackages_git.llvm: add checks for the LLVM version

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this is a backport of 8afa321b8a
from #194634 (llvmPackages_15)
This commit is contained in:
Rahul Butani 2023-03-24 07:08:47 -05:00 committed by Alyssa Ross
parent 9984ca0504
commit 4917dc751c
1 changed files with 32 additions and 0 deletions
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32
pkgs/development/compilers/llvm/git/llvm/default.nix
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@ -241,6 +241,38 @@ in stdenv.mkDerivation (rec {
)
'';
# Defensive check: some paths (that we make symlinks to) depend on the release
# version, for example:
# - https://github.com/llvm/llvm-project/blob/406bde9a15136254f2b10d9ef3a42033b3cb1b16/clang/lib/Headers/CMakeLists.txt#L185
#
# So we want to sure that the version in the source matches the release
# version we were given.
#
# We do this check here, in the LLVM build, because it happens early.
postConfigure = let
v = lib.versions;
major = v.major release_version;
minor = v.minor release_version;
patch = v.patch release_version;
in ''
# $1: part, $2: expected
check_version() {
part="''${1^^}"
part="$(cat include/llvm/Config/llvm-config.h | grep "#define LLVM_VERSION_''${part} " | cut -d' ' -f3)"
if [[ "$part" != "$2" ]]; then
echo >&2 \
"mismatch in the $1 version! we have version ${release_version}" \
"and expected the $1 version to be '$2'; the source has '$part' instead"
exit 3
fi
}
check_version major ${major}
check_version minor ${minor}
check_version patch ${patch}
'';
# E.g. mesa.drivers use the build-id as a cache key (see #93946):
LDFLAGS = optionalString (enableSharedLibraries && !stdenv.isDarwin) "-Wl,--build-id=sha1";