[libc-commits] [libc] 3584a82 - [libc] Only use COMPILER_RESOURCE_DIR if available (#97465)

[via libc-commits]

Author: Petr Hosek
Date: 2024-07-02T12:48:48-07:00
New Revision: 3584a82333bf518e25c84d30e31ab5decd0f3fb6

URL: https://github.com/llvm/llvm-project/commit/3584a82333bf518e25c84d30e31ab5decd0f3fb6
DIFF: https://github.com/llvm/llvm-project/commit/3584a82333bf518e25c84d30e31ab5decd0f3fb6.diff

LOG: [libc] Only use COMPILER_RESOURCE_DIR if available (#97465)

This avoids build error when COMPILER_RESOURCE_DIR is unset.

Added: 
    

Modified: 
    libc/cmake/modules/LLVMLibCCompileOptionRules.cmake

Removed: 
    


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diff  --git a/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake b/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
index d283e966bffcf..28379213029a3 100644
--- a/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
+++ b/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
@@ -50,7 +50,7 @@ function(_get_common_compile_options output_var flags)
       # being included.
       if(LIBC_CC_SUPPORTS_NOSTDLIBINC)
         list(APPEND compile_options "-nostdlibinc")
-      else()
+      elseif(COMPILER_RESOURCE_DIR)
         list(APPEND compile_options "-isystem${COMPILER_RESOURCE_DIR}/include")
         list(APPEND compile_options "-nostdinc")
       endif()