neovim/cmake/GetCompileFlags.cmake
Daniel Hahler 81b19df5f2
cmake/GetCompileFlags: include CMAKE_C_COMPILER_ARG1 (#11091)
This is used internally (e.g. on Travis) for 32-bit builds (`-m32`).
2019-09-25 00:09:23 +02:00

88 lines
2.6 KiB
CMake

function(get_compile_flags _compile_flags)
# Create template akin to CMAKE_C_COMPILE_OBJECT.
set(compile_flags "<CMAKE_C_COMPILER> <CFLAGS> <BUILD_TYPE_CFLAGS> <COMPILE_OPTIONS><COMPILE_DEFINITIONS> <INCLUDES>")
# Get C compiler.
if(CMAKE_C_COMPILER_ARG1)
string(REPLACE
"<CMAKE_C_COMPILER>"
"<CMAKE_C_COMPILER> ${CMAKE_C_COMPILER_ARG1}"
compile_flags
"${compile_flags}")
endif()
string(REPLACE
"<CMAKE_C_COMPILER>"
"${CMAKE_C_COMPILER}"
compile_flags
"${compile_flags}")
# Get flags set by add_definitions().
get_property(compile_definitions DIRECTORY PROPERTY COMPILE_DEFINITIONS)
get_target_property(compile_definitions_target nvim COMPILE_DEFINITIONS)
if(compile_definitions_target)
list(APPEND compile_definitions ${compile_definitions_target})
list(REMOVE_DUPLICATES compile_definitions)
endif()
# NOTE: list(JOIN) requires CMake 3.12, string(CONCAT) requires CMake 3.
string(REPLACE ";" " -D" compile_definitions "${compile_definitions}")
if(compile_definitions)
set(compile_definitions " -D${compile_definitions}")
endif()
string(REPLACE
"<COMPILE_DEFINITIONS>"
"${compile_definitions}"
compile_flags
"${compile_flags}")
# Get flags set by add_compile_options().
get_property(compile_options DIRECTORY PROPERTY COMPILE_OPTIONS)
get_target_property(compile_options_target nvim COMPILE_OPTIONS)
if(compile_options_target)
list(APPEND compile_options ${compile_options_target})
list(REMOVE_DUPLICATES compile_options)
endif()
# NOTE: list(JOIN) requires CMake 3.12.
string(REPLACE ";" " " compile_options "${compile_options}")
string(REPLACE
"<COMPILE_OPTIONS>"
"${compile_options}"
compile_flags
"${compile_flags}")
# Get general C flags.
string(REPLACE
"<CFLAGS>"
"${CMAKE_C_FLAGS}"
compile_flags
"${compile_flags}")
# Get C flags specific to build type.
string(TOUPPER "${CMAKE_BUILD_TYPE}" build_type)
string(REPLACE
"<BUILD_TYPE_CFLAGS>"
"${CMAKE_C_FLAGS_${build_type}}"
compile_flags
"${compile_flags}")
# Get include directories.
get_property(include_directories_list DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
list(REMOVE_DUPLICATES include_directories_list)
foreach(include_directory ${include_directories_list})
set(include_directories "${include_directories} -I${include_directory}")
endforeach()
string(REPLACE
"<INCLUDES>"
"${include_directories}"
compile_flags
"${compile_flags}")
# Clean duplicate whitespace.
string(REPLACE
" "
" "
compile_flags
"${compile_flags}")
set(${_compile_flags} "${compile_flags}" PARENT_SCOPE)
endfunction()