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Gcc 4.9 LTO fix 

The new lto format requires use of the gcc-provided gcc-ar and
gcc-ranlib binaries.
This commit is contained in:
Zachary Michaels 2014-06-11 13:13:43 -04:00
parent feac5a7b2d
commit c8626dff3f
1 changed files with 5 additions and 0 deletions
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5
CMakeLists.txt
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@ -44,6 +44,11 @@ else()
else() else()
set(WARNINGS "${WARNINGS} -Wlogical-op -Wno-error=maybe-uninitialized") set(WARNINGS "${WARNINGS} -Wlogical-op -Wno-error=maybe-uninitialized")
endif() endif()
# Since gcc 4.9 the LTO format is non-standard (slim), so we need the gcc-specific ar and ranlib binaries
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9.0))
set(CMAKE_AR "gcc-ar")
set(CMAKE_RANLIB "gcc-ranlib")
endif()
if(MINGW) if(MINGW)
set(WARNINGS "${WARNINGS} -Wno-error=unused-value") set(WARNINGS "${WARNINGS} -Wno-error=unused-value")
set(MINGW_FLAG "-DWIN32_LEAN_AND_MEAN") set(MINGW_FLAG "-DWIN32_LEAN_AND_MEAN")