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# HandleLibcxxFlags - A set of macros used to setup the flags used to compile
# and link libc++abi. These macros add flags to the following CMake variables.
# - LIBUNWIND_COMPILE_FLAGS: flags used to compile libunwind
# - LIBUNWIND_LINK_FLAGS: flags used to link libunwind
# - LIBUNWIND_LIBRARIES: libraries to link libunwind to.
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(HandleFlags)
unset(add_flag_if_supported)
# Add a list of flags to 'LIBUNWIND_COMPILE_FLAGS'.
macro(add_compile_flags)
foreach(f ${ARGN})
list(APPEND LIBUNWIND_COMPILE_FLAGS ${f})
endforeach()
endmacro()
# If 'condition' is true then add the specified list of flags to
# 'LIBUNWIND_COMPILE_FLAGS'
macro(add_compile_flags_if condition)
if (${condition})
add_compile_flags(${ARGN})
endif()
endmacro()
# For each specified flag, add that flag to 'LIBUNWIND_COMPILE_FLAGS' if the
# flag is supported by the C++ compiler.
macro(add_compile_flags_if_supported)
foreach(flag ${ARGN})
mangle_name("${flag}" flagname)
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
add_compile_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${flag})
endforeach()
endmacro()
# Add a list of flags to 'LIBUNWIND_C_FLAGS'.
macro(add_c_flags)
foreach(f ${ARGN})
list(APPEND LIBUNWIND_C_FLAGS ${f})
endforeach()
endmacro()
# If 'condition' is true then add the specified list of flags to
# 'LIBUNWIND_C_FLAGS'
macro(add_c_flags_if condition)
if (${condition})
add_c_flags(${ARGN})
endif()
endmacro()
# Add a list of flags to 'LIBUNWIND_CXX_FLAGS'.
macro(add_cxx_flags)
foreach(f ${ARGN})
list(APPEND LIBUNWIND_CXX_FLAGS ${f})
endforeach()
endmacro()
# If 'condition' is true then add the specified list of flags to
# 'LIBUNWIND_CXX_FLAGS'
macro(add_cxx_flags_if condition)
if (${condition})
add_cxx_flags(${ARGN})
endif()
endmacro()
# For each specified flag, add that flag to 'LIBUNWIND_CXX_FLAGS' if the
# flag is supported by the C compiler.
macro(add_cxx_compile_flags_if_supported)
foreach(flag ${ARGN})
mangle_name("${flag}" flagname)
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
add_cxx_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${flag})
endforeach()
endmacro()
# Add a list of flags to 'LIBUNWIND_LINK_FLAGS'.
macro(add_link_flags)
foreach(f ${ARGN})
list(APPEND LIBUNWIND_LINK_FLAGS ${f})
endforeach()
endmacro()
# If 'condition' is true then add the specified list of flags to
# 'LIBUNWIND_LINK_FLAGS'
macro(add_link_flags_if condition)
if (${condition})
add_link_flags(${ARGN})
endif()
endmacro()
# For each specified flag, add that flag to 'LIBUNWIND_LINK_FLAGS' if the
# flag is supported by the C++ compiler.
macro(add_link_flags_if_supported)
foreach(flag ${ARGN})
mangle_name("${flag}" flagname)
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
add_link_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${flag})
endforeach()
endmacro()
# Add a list of libraries or link flags to 'LIBUNWIND_LIBRARIES'.
macro(add_library_flags)
foreach(lib ${ARGN})
list(APPEND LIBUNWIND_LIBRARIES ${lib})
endforeach()
endmacro()
# if 'condition' is true then add the specified list of libraries and flags
# to 'LIBUNWIND_LIBRARIES'.
macro(add_library_flags_if condition)
if(${condition})
add_library_flags(${ARGN})
endif()
endmacro()
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