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-rw-r--r--llvm/cmake/modules/HandleLLVMOptions.cmake2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
index 86806140023..a293dde1499 100644
--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -581,6 +581,8 @@ if (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL))
# Enable -Wstring-conversion to catch misuse of string literals.
add_flag_if_supported("-Wstring-conversion" STRING_CONVERSION_FLAG)
+ # Enable -Wstrict-prototypes to catch incorrectly declared functions in C.
+ add_flag_if_supported("-Wstrict-prototypes" STRICT_PROTOTYPES_FLAG)
endif (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL))
if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND NOT LLVM_ENABLE_WARNINGS)
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