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cmake: drop amending of compilation options

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Allow to specify optimization level via CMake.
This commit is contained in:
Alexander Alekhin 2017-11-12 11:12:27 +03:00
parent e89501a3ad
commit 43e4e1b624
1 changed files with 0 additions and 11 deletions
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11
cmake/OpenCVCompilerOptions.cmake
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@ -28,17 +28,6 @@ if((CMAKE_COMPILER_IS_CLANGCXX OR CMAKE_COMPILER_IS_CLANGCC OR CMAKE_COMPILER_IS
set(ENABLE_PRECOMPILED_HEADERS OFF CACHE BOOL "" FORCE)
endif()
if(MINGW OR (X86 AND UNIX AND NOT APPLE))
# mingw compiler is known to produce unstable SSE code with -O3 hence we are trying to use -O2 instead
if(CMAKE_COMPILER_IS_GNUCXX)
foreach(flags
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG
CMAKE_C_FLAGS CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_DEBUG)
string(REPLACE "-O3" "-O2" ${flags} "${${flags}}")
endforeach()
endif()
endif()
if(MSVC)
string(STRIP "${CMAKE_CXX_FLAGS}" CMAKE_CXX_FLAGS)
string(STRIP "${CMAKE_CXX_FLAGS_INIT}" CMAKE_CXX_FLAGS_INIT)