Use -Wextra spelling instead of -W

No difference in behavior, but a bit easier to search for.
https://reviews.llvm.org/D47490

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333651 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index 3c8bdaf..3d2dd48 100644 (file)
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -555,7 +555,7 @@ if (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL))
     append("-Wall" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
   endif()
 
-  append("-W -Wno-unused-parameter -Wwrite-strings" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+  append("-Wextra -Wno-unused-parameter -Wwrite-strings" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
   append("-Wcast-qual" CMAKE_CXX_FLAGS)
 
   # Turn off missing field initializer warnings for gcc to avoid noise from