Update LLVMLibCArchitectures.cmake

[westtide]

Hi there,

When building llvm-libc on the openEuler system, I encountered an issue as shown in the image below:

This issue happens because the regular expression used in libc/cmake/modules/LLVMLibCArchitectures.cmake: string(REGEX MATCH "Target: [-_a-z0-9.]+[ \r\n]+") does not handle capital letters properly in openEuler.

To fix this, I modified the regular expression to: string(REGEX MATCH "Target: [-_a-zA-Z0-9.]+[ \r\n]+"). This change makes it compatible with capital letters.

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[llvmbot]

@llvm/pr-subscribers-libc

Author: westtide (westtide)

Changes

Hi there,

When building llvm-libc on the openEuler system, I encountered an issue as shown in the image below:

This issue happens because the regular expression used in libc/cmake/modules/LLVMLibCArchitectures.cmake: string(REGEX MATCH "Target: [-_a-z0-9.]+[ \r\n]+") does not handle capital letters properly in openEuler.

To fix this, I modified the regular expression to: string(REGEX MATCH "Target: [-_a-zA-Z0-9.]+[ \r\n]+"). This change makes it compatible with capital letters.

---

Full diff: https://github.com/llvm/llvm-project/pull/112464.diff

1 Files Affected:

• (modified) libc/cmake/modules/LLVMLibCArchitectures.cmake (+1-1)

diff --git a/libc/cmake/modules/LLVMLibCArchitectures.cmake b/libc/cmake/modules/LLVMLibCArchitectures.cmake
index 7711127c1a81e1..1e5ed723194a26 100644
--- a/libc/cmake/modules/LLVMLibCArchitectures.cmake
+++ b/libc/cmake/modules/LLVMLibCArchitectures.cmake
@@ -84,7 +84,7 @@ if(NOT (libc_compiler_info_result EQUAL "0"))
   message(FATAL_ERROR "libc build: error querying compiler info from the "
                       "compiler: ${libc_compiler_info}")
 endif()
-string(REGEX MATCH "Target: [-_a-z0-9.]+[ \r\n]+"
+string(REGEX MATCH "Target: [-_a-zA-Z0-9.]+[ \r\n]+"
        libc_compiler_target_info ${libc_compiler_info})
 if(NOT libc_compiler_target_info)
   message(FATAL_ERROR "libc build: could not read compiler target info from:\n"

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