diff options
Diffstat (limited to 'cmake/modules/HandleLLVMOptions.cmake')
| -rw-r--r-- | cmake/modules/HandleLLVMOptions.cmake | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake index 67f86a6..27147dc 100644 --- a/cmake/modules/HandleLLVMOptions.cmake +++ b/cmake/modules/HandleLLVMOptions.cmake @@ -315,6 +315,13 @@ if( MSVC ) # Enable warnings if (LLVM_ENABLE_WARNINGS) append("/W4" msvc_warning_flags) + # CMake appends /W3 by default, and having /W3 followed by /W4 will result in + # cl : Command line warning D9025 : overriding '/W3' with '/W4'. Since this is + # a command line warning and not a compiler warning, it cannot be suppressed except + # by fixing the command line. + string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}") + string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") + if (LLVM_ENABLE_PEDANTIC) # No MSVC equivalent available endif (LLVM_ENABLE_PEDANTIC) @@ -486,7 +493,8 @@ endif() # But MinSizeRel seems to add that automatically, so maybe disable these # flags instead if LLVM_NO_DEAD_STRIP is set. if(NOT CYGWIN AND NOT WIN32) - if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin") + if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND + NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG") check_c_compiler_flag("-Werror -fno-function-sections" C_SUPPORTS_FNO_FUNCTION_SECTIONS) if (C_SUPPORTS_FNO_FUNCTION_SECTIONS) # Don't add -ffunction-section if it can be disabled with -fno-function-sections. |