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Revert "cmake/llvm: Don't unset LLVM_CONFIG_EXE"

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This reverts commit 28476a5ee94d311319941b54e9da66210690ce70.

It also adds a comment to explain the purpose of this line, to prevent
this mistake from being repeated.
This commit is contained in:
Andrew Kelley 2024-05-25 09:02:39 -07:00
parent 0b0625ccf4
commit 793f820b39
1 changed files with 4 additions and 0 deletions
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4
cmake/Findllvm.cmake
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@ -12,6 +12,10 @@
if(ZIG_USE_LLVM_CONFIG) if(ZIG_USE_LLVM_CONFIG)
set(LLVM_CONFIG_ERROR_MESSAGES "") set(LLVM_CONFIG_ERROR_MESSAGES "")
while(1) while(1)
# If this variable is not unset, the same result is returned even though
# the ignore list has changed, causing the configure process to not
# terminate when the right LLVM version is not found.
unset(LLVM_CONFIG_EXE CACHE)
find_program(LLVM_CONFIG_EXE find_program(LLVM_CONFIG_EXE
NAMES llvm-config-18 llvm-config-18.0 llvm-config180 llvm-config18 llvm-config NAMES_PER_DIR NAMES llvm-config-18 llvm-config-18.0 llvm-config180 llvm-config18 llvm-config NAMES_PER_DIR
PATHS PATHS