[libc-commits] [libc] Update LLVMLibCArchitectures.cmake (PR #112464)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: westtide (westtide)

<details>
<summary>Changes</summary>

Hi there,

When building llvm-libc on the openEuler system, I encountered an issue as shown in the image below:
![image](https://github.com/user-attachments/assets/75667de4-5bea-4a95-be28-ed34db0e05b9)

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
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"

``````````

</details>


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