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set default compiler flags to "-O2" in the case of MinGW

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This commit is contained in:
Alexander Shishkov 2011-06-17 15:44:05 +00:00
parent 840baa2205
commit d198e39d35
1 changed files with 4 additions and 8 deletions
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12
CMakeLists.txt
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@ -41,6 +41,10 @@ set(CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
set(CMAKE_VERBOSE OFF CACHE BOOL "Verbose mode")
if (MINGW)
set(CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG" CACHE STRING "")
endif()
if(CMAKE_VERBOSE)
set(CMAKE_VERBOSE_MAKEFILE 1)
endif()
@ -307,13 +311,11 @@ if(CMAKE_COMPILER_IS_GNUCXX)
endif()
if(${CMAKE_SYSTEM_PROCESSOR} MATCHES powerpc*)
set(USE_O3 ON CACHE BOOL "Enable -O3 for GCC")
set(ENABLE_POWERPC ON CACHE BOOL "Enable PowerPC for GCC")
endif ()
if(X86 OR X86_64)
# enable everything, since the available set of instructions is checked at runtime
set(USE_O3 ON CACHE BOOL "Enable -O3")
set(USE_FAST_MATH ON CACHE BOOL "Enable -ffast-math")
set(ENABLE_SSE ON CACHE BOOL "Enable SSE instructions")
set(ENABLE_SSE2 ON CACHE BOOL "Enable SSE2 instructions")
@ -993,12 +995,6 @@ if(CMAKE_COMPILER_IS_GNUCXX)
if(USE_OMIT_FRAME_POINTER)
set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -fomit-frame-pointer")
endif()
if(USE_O2)
set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -O2")
endif()
if(USE_O3)
set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -O3")
endif()
if(USE_FAST_MATH)
set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -ffast-math")
endif()