if(X86 OR X86_64)
# enable everything, since the available set of instructions is checked at runtime
- set(USE_FAST_MATH ON CACHE BOOL "Enable -ffast-math")
+ IF ("${CMAKE_GCC_REGEX_VERSION}" VERSION_GREATER 4.6.-1)
+ SET(_USE_FAST_MATH OFF)
+ ELSE()
+ SET(_USE_FAST_MATH ON)
+ ENDIF()
+ set(USE_FAST_MATH ${_USE_FAST_MATH} CACHE BOOL "Enable -ffast-math (not recommended for GCC 4.6.x)")
set(ENABLE_SSE ON CACHE BOOL "Enable SSE instructions")
set(ENABLE_SSE2 ON CACHE BOOL "Enable SSE2 instructions")
set(ENABLE_SSE3 OFF CACHE BOOL "Enable SSE3 instructions")