From ace4f2b0d4d542e3a835bcd4fad69205c5a73330 Mon Sep 17 00:00:00 2001 From: Rafael Espindola Date: Fri, 20 Jan 2012 13:10:10 +0000 Subject: [PATCH] Don't use -fvisibility-inlines-hidden on mingw to try to avoid a lot of warnings from gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148539 91177308-0d34-0410-b5e6-96231b3b80d8 --- cmake/modules/HandleLLVMOptions.cmake | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake index 33d7d9abadd..229127d8320 100644 --- a/cmake/modules/HandleLLVMOptions.cmake +++ b/cmake/modules/HandleLLVMOptions.cmake @@ -89,11 +89,15 @@ if( LLVM_ENABLE_PIC ) message(WARNING "-fPIC not supported.") endif() - check_cxx_compiler_flag("-fvisibility-inlines-hidden" SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG) - if( SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG ) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden") - set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility-inlines-hidden") - endif() + if( WIN32 OR CYGWIN) + # MinGW warns if -fvisibility-inlines-hidden is used. + else() + check_cxx_compiler_flag("-fvisibility-inlines-hidden" SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG) + if( SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG ) + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility-inlines-hidden") + endif() + endif() endif() endif()