[llvm] 4a44e00 - [llvm] Define __has_warning in Compiler.h if it isn't defined

[Nico Weber via llvm-commits]

Author: Nico Weber
Date: 2025-05-28T14:12:36-04:00
New Revision: 4a44e0014d1b79089d42ef86f0d989053df0cbea

URL: https://github.com/llvm/llvm-project/commit/4a44e0014d1b79089d42ef86f0d989053df0cbea
DIFF: https://github.com/llvm/llvm-project/commit/4a44e0014d1b79089d42ef86f0d989053df0cbea.diff

LOG: [llvm] Define __has_warning in Compiler.h if it isn't defined

Follow-up to #141091.

Added: 
    

Modified: 
    llvm/include/llvm/Support/Compiler.h

Removed: 
    


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diff  --git a/llvm/include/llvm/Support/Compiler.h b/llvm/include/llvm/Support/Compiler.h
index 89b925da75338..b4382057654ba 100644
--- a/llvm/include/llvm/Support/Compiler.h
+++ b/llvm/include/llvm/Support/Compiler.h
@@ -39,6 +39,10 @@
 # define __has_builtin(x) 0
 #endif
 
+#ifndef __has_warning
+# define __has_warning(x) 0
+#endif
+
 // Only use __has_cpp_attribute in C++ mode. GCC defines __has_cpp_attribute in
 // C mode, but the :: in __has_cpp_attribute(scoped::attribute) is invalid.
 #ifndef LLVM_HAS_CPP_ATTRIBUTE