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cmake: check the generator for fat runtime builds

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The RULE_LAUNCH_COMPILE property only works for Unix Makefiles, or
for Ninja with CMake newer than v3.0.
This commit is contained in:
Matthew Barr 2016-12-14 15:15:37 +11:00
parent 8334745063
commit 2f57681bb6
1 changed files with 8 additions and 2 deletions
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8
CMakeLists.txt
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@ -209,7 +209,6 @@ else()
endif()
if (NOT CMAKE_C_FLAGS MATCHES .*march.*)
message(STATUS "Building for current host CPU")
set(ARCH_C_FLAGS "${ARCH_C_FLAGS} -march=native -mtune=native")
endif()
@ -258,10 +257,15 @@ endif()
if (CMAKE_SYSTEM_NAME MATCHES "Linux")
# This is a Linux-only feature for now - requires platform support
# elsewhere
message(STATUS "generator is ${CMAKE_GENERATOR}")
if (CMAKE_C_COMPILER_ID MATCHES "Clang" AND
CMAKE_C_COMPILER_VERSION VERSION_LESS "3.9")
message (STATUS "Clang v3.9 or higher required for fat runtime, cannot build fat runtime")
set (FAT_RUNTIME_REQUISITES FALSE)
elseif (NOT (CMAKE_GENERATOR MATCHES "Unix Makefiles" OR
(CMAKE_VERSION VERSION_GREATER "3.0" AND CMAKE_GENERATOR MATCHES "Ninja")))
message (STATUS "Building the fat runtime requires the Unix Makefiles generator, or Ninja with CMake v3.0 or higher")
set (FAT_RUNTIME_REQUISITES FALSE)
else()
include (${CMAKE_MODULE_PATH}/attrib.cmake)
if (NOT HAS_C_ATTR_IFUNC)
@ -386,9 +390,11 @@ endif()
endif()
if (NOT FAT_RUNTIME)
message(STATUS "Building for current host CPU")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ARCH_C_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ARCH_CXX_FLAGS}")
else()
message(STATUS "Building runtime for multiple microarchitectures")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
endif()