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Merge branch 'gcc_optimizer_bug' into 'master'

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Added a little safeguard against GCC optimizer bug to CMakeLists.txt.



See merge request !88
This commit is contained in:
Jan Möbius
2016-09-14 15:30:50 +02:00
parent bfc8506c20 2cb42c9d44
commit 62efcd7688
1 changed files with 8 additions and 0 deletions
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8
CMakeLists.txt
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@@ -7,6 +7,14 @@ if("${PROJECT_NAME}" STREQUAL "")
project (OpenMesh)
endif()
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.0" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "4.9" OR CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL "4.9")
message(WARNING "Your version of GCC contains an optimizer bug. Please verify that you do not use -O3!")
string(REPLACE "-O3" "-O2" CMAKE_CXX_FLAGS_RELEASE_NEW "${CMAKE_CXX_FLAGS_RELEASE}")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE_NEW}" CACHE STRING "" FORCE)
endif()
endif()
if ( WIN32 )
# This is the base directory for windows library search used in the finders we ship.
set(CMAKE_WINDOWS_LIBS_DIR "c:/libs" CACHE STRING "Default Library search dir on windows." )