mirror of
https://github.com/libgit2/libgit2.git
synced 2026-01-25 02:56:17 +00:00
31 lines
1004 B
CMake
31 lines
1004 B
CMake
# - Append compiler flag to CMAKE_C_FLAGS if compiler supports it
|
|
# ADD_C_FLAG_IF_SUPPORTED(<flag>)
|
|
# <flag> - the compiler flag to test
|
|
# This internally calls the CHECK_C_COMPILER_FLAG macro.
|
|
|
|
include(CheckCCompilerFlag)
|
|
|
|
macro(ADD_C_FLAG _FLAG)
|
|
string(TOUPPER ${_FLAG} UPCASE)
|
|
string(REGEX REPLACE "[-=]" "_" UPCASE_PRETTY ${UPCASE})
|
|
string(REGEX REPLACE "^_+" "" UPCASE_PRETTY ${UPCASE_PRETTY})
|
|
check_c_compiler_flag(${_FLAG} IS_${UPCASE_PRETTY}_SUPPORTED)
|
|
|
|
if(IS_${UPCASE_PRETTY}_SUPPORTED)
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_FLAG}")
|
|
else()
|
|
message(FATAL_ERROR "Required flag ${_FLAG} is not supported")
|
|
endif()
|
|
endmacro()
|
|
|
|
macro(ADD_C_FLAG_IF_SUPPORTED _FLAG)
|
|
string(TOUPPER ${_FLAG} UPCASE)
|
|
string(REGEX REPLACE "[-=]" "_" UPCASE_PRETTY ${UPCASE})
|
|
string(REGEX REPLACE "^_+" "" UPCASE_PRETTY ${UPCASE_PRETTY})
|
|
check_c_compiler_flag(${_FLAG} IS_${UPCASE_PRETTY}_SUPPORTED)
|
|
|
|
if(IS_${UPCASE_PRETTY}_SUPPORTED)
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_FLAG}")
|
|
endif()
|
|
endmacro()
|