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CMake: Disable native cpu optimizations by default #113

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CMake: Disable native cpu optimizations by default #113

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3 changes: 2 additions & 1 deletion conf/gkbuild.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ option(OPENMP "enable OpenMP support" OFF)
option(PCRE "enable PCRE support" OFF)
option(GKREGEX "enable GKREGEX support" OFF)
option(GKRAND "enable GKRAND support" OFF)
option(NATIVE "enable native cpu optimizations" OFF)

# Add compiler flags.
if(MSVC)
Expand All @@ -31,7 +32,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
set(GK_COPTIONS "${GK_COPTIONS} -std=c99 -fno-strict-aliasing")
if(VALGRIND)
set(GK_COPTIONS "${GK_COPTIONS} -march=x86-64 -mtune=generic")
else()
elseif(NATIVE)
# -march=native is not a valid flag on PPC:
if(CMAKE_SYSTEM_PROCESSOR MATCHES "power|ppc|powerpc|ppc64|powerpc64" OR (APPLE AND CMAKE_OSX_ARCHITECTURES MATCHES "ppc|ppc64"))
set(GK_COPTIONS "${GK_COPTIONS} -mtune=native")
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