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cmake: check clang version for fat runtime support

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Matthew Barr 2016-12-12 16:42:32 +11:00
parent f29b203a86
commit 0d87116d33
1 changed files with 10 additions and 3 deletions
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13
CMakeLists.txt
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@ -258,13 +258,20 @@ endif()
if (CMAKE_SYSTEM_NAME MATCHES "Linux") if (CMAKE_SYSTEM_NAME MATCHES "Linux")
# This is a Linux-only feature for now - requires platform support # This is a Linux-only feature for now - requires platform support
# elsewhere # elsewhere
option(FAT_RUNTIME "Build a library that supports multiple microarchitecures" ${RELEASE_BUILD}) if (CMAKE_C_COMPILER_ID MATCHES "Clang" AND
if (FAT_RUNTIME) CMAKE_C_COMPILER_VERSION VERSION_LESS "3.9")
message (STATUS "Clang v3.9 or higher required for fat runtime, cannot build fat runtime")
set (FAT_RUNTIME_REQUISITES FALSE)
else ()
include (${CMAKE_MODULE_PATH}/attrib.cmake) include (${CMAKE_MODULE_PATH}/attrib.cmake)
if (NOT HAS_C_ATTR_IFUNC) if (NOT HAS_C_ATTR_IFUNC)
message(FATAL_ERROR "Compiler does not support ifunc attribute, cannot build fat runtime") message(STATUS "Compiler does not support ifunc attribute, cannot build fat runtime")
set (FAT_RUNTIME_REQUISITES FALSE)
else ()
set (FAT_RUNTIME_REQUISITES TRUE)
endif() endif()
endif() endif()
CMAKE_DEPENDENT_OPTION(FAT_RUNTIME "Build a library that supports multiple microarchitecures" ${RELEASE_BUILD} "FAT_RUNTIME_REQUISITES" OFF)
endif () endif ()
include (${CMAKE_MODULE_PATH}/arch.cmake) include (${CMAKE_MODULE_PATH}/arch.cmake)