mirror of
https://github.com/fmtlib/fmt.git
synced 2024-11-09 12:50:05 +00:00
Use add_module_library
This commit is contained in:
Victor Zverovich
parent
faf83406a9
commit
75f3b1c094
110
CMakeLists.txt
110
CMakeLists.txt
@ -24,6 +24,7 @@ function(join result_var)
|
||||
set(${result_var} "${result}" PARENT_SCOPE)
|
||||
endfunction()
|
||||
|
||||
# DEPRECATED! Should be merged into add_module_library.
|
||||
function(enable_module target)
|
||||
if (MSVC)
|
||||
set(BMI ${CMAKE_CURRENT_BINARY_DIR}/${target}.ifc)
|
||||
@ -35,6 +36,79 @@ function(enable_module target)
|
||||
endif ()
|
||||
endfunction()
|
||||
|
||||
# Adds a library compiled with C++20 module support.
|
||||
# `enabled` is a CMake variables that specifies if modules are enabled.
|
||||
# If modules are disabled `add_module_library` falls back to creating a
|
||||
# non-modular library.
|
||||
#
|
||||
# Usage:
|
||||
# add_module_library(<name> [sources...] FALLBACK [sources...] [IF enabled])
|
||||
function(add_module_library name)
|
||||
cmake_parse_arguments(AML "" "IF" "FALLBACK" ${ARGN})
|
||||
set(sources ${AML_UNPARSED_ARGUMENTS})
|
||||
|
||||
add_library(${name})
|
||||
set_target_properties(${name} PROPERTIES LINKER_LANGUAGE CXX)
|
||||
|
||||
if (NOT ${${AML_IF}})
|
||||
# Create a non-modular library.
|
||||
target_sources(${name} PRIVATE ${AML_FALLBACK})
|
||||
return()
|
||||
endif ()
|
||||
|
||||
# Check if modules are supported.
|
||||
set(have_modules FALSE)
|
||||
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
|
||||
CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 16.0)
|
||||
set(have_modules TRUE)
|
||||
endif ()
|
||||
if (NOT have_modules)
|
||||
message(FATAL_ERROR "Modules not supported.")
|
||||
endif ()
|
||||
|
||||
# Modules require C++20.
|
||||
target_compile_features(${name} PUBLIC cxx_std_20)
|
||||
|
||||
# `std` is affected by CMake options and may be higher than C++20.
|
||||
get_target_property(std ${name} CXX_STANDARD)
|
||||
|
||||
set(pcms)
|
||||
foreach (src ${sources})
|
||||
get_filename_component(pcm ${src} NAME_WE)
|
||||
set(pcm ${pcm}.pcm)
|
||||
|
||||
# Propagate -fmodule-file=*.pcm to targets that link with this library.
|
||||
target_compile_options(${name} PUBLIC -fmodule-file=${pcm})
|
||||
|
||||
# Use an absolute path to prevent target_link_libraries prepending -l to it.
|
||||
set(pcms ${pcms} ${CMAKE_CURRENT_BINARY_DIR}/${pcm})
|
||||
add_custom_command(
|
||||
OUTPUT ${pcm}
|
||||
COMMAND ${CMAKE_CXX_COMPILER}
|
||||
-std=c++${std} -x c++-module --precompile -c
|
||||
-o ${pcm} ${CMAKE_CURRENT_SOURCE_DIR}/${src}
|
||||
"-I$<JOIN:$<TARGET_PROPERTY:${name},INCLUDE_DIRECTORIES>,;-I>"
|
||||
# Required by the -I generator expression above.
|
||||
COMMAND_EXPAND_LISTS
|
||||
DEPENDS ${src})
|
||||
endforeach ()
|
||||
|
||||
# Add .pcm files as sources to make sure they are built before the library.
|
||||
set(files)
|
||||
foreach (pcm ${pcms})
|
||||
get_filename_component(pcm_we ${pcm} NAME_WE)
|
||||
set(obj ${pcm_we}.o)
|
||||
# Use an absolute path to prevent target_link_libraries prepending -l.
|
||||
set(files ${files} ${pcm} ${CMAKE_CURRENT_BINARY_DIR}/${obj})
|
||||
add_custom_command(
|
||||
OUTPUT ${obj}
|
||||
COMMAND ${CMAKE_CXX_COMPILER} $<TARGET_PROPERTY:${name},COMPILE_OPTIONS>
|
||||
-c -o ${obj} ${pcm}
|
||||
DEPENDS ${pcm})
|
||||
endforeach ()
|
||||
target_sources(${name} PRIVATE ${files})
|
||||
endfunction()
|
||||
|
||||
include(CMakeParseArguments)
|
||||
|
||||
# Sets a cache variable with a docstring joined from multiple arguments:
|
||||
@ -214,16 +288,18 @@ endfunction()
|
||||
add_headers(FMT_HEADERS args.h chrono.h color.h compile.h core.h format.h
|
||||
format-inl.h os.h ostream.h printf.h ranges.h std.h
|
||||
xchar.h)
|
||||
if (FMT_MODULE)
|
||||
set(FMT_SOURCES src/fmt.cc)
|
||||
elseif (FMT_OS)
|
||||
set(FMT_SOURCES src/format.cc src/os.cc)
|
||||
else()
|
||||
set(FMT_SOURCES src/format.cc)
|
||||
set(FMT_SOURCES src/format.cc)
|
||||
if (FMT_OS)
|
||||
set(FMT_SOURCES ${FMT_SOURCES} src/os.cc)
|
||||
endif ()
|
||||
|
||||
add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst)
|
||||
add_module_library(fmt src/fmt.cc FALLBACK
|
||||
${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst
|
||||
IF FMT_MODULE)
|
||||
add_library(fmt::fmt ALIAS fmt)
|
||||
if (FMT_MODULE)
|
||||
enable_module(fmt)
|
||||
endif ()
|
||||
|
||||
if (FMT_WERROR)
|
||||
target_compile_options(fmt PRIVATE ${WERROR_FLAG})
|
||||
@ -232,25 +308,6 @@ if (FMT_PEDANTIC)
|
||||
target_compile_options(fmt PRIVATE ${PEDANTIC_COMPILE_FLAGS})
|
||||
endif ()
|
||||
|
||||
if (FMT_MODULE)
|
||||
if (CMAKE_VERSION VERSION_LESS 3.26)
|
||||
message(FATAL_ERROR "Modules require CMake 3.26+.")
|
||||
endif ()
|
||||
set(CMAKE_EXPERIMENTAL_CXX_MODULE_CMAKE_API
|
||||
"2182bf5c-ef0d-489a-91da-49dbc3090d2a")
|
||||
set(CMAKE_EXPERIMENTAL_CXX_MODULE_DYNDEP 1)
|
||||
enable_module(fmt)
|
||||
target_sources(fmt PUBLIC
|
||||
FILE_SET cxx_modules TYPE CXX_MODULES FILES src/fmt.cc)
|
||||
# Workaround a CMake issue when using fmt as a subdirectory.
|
||||
target_compile_options(
|
||||
fmt PUBLIC
|
||||
-fprebuilt-module-path=${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/fmt.dir)
|
||||
# Workaround a bug in clang-scan-deps.
|
||||
target_include_directories(
|
||||
fmt PUBLIC /usr/lib/gcc/x86_64-linux-gnu/12/include)
|
||||
endif ()
|
||||
|
||||
target_compile_features(fmt PUBLIC cxx_std_11)
|
||||
|
||||
target_include_directories(fmt ${FMT_SYSTEM_HEADERS_ATTRIBUTE} PUBLIC
|
||||
@ -334,7 +391,6 @@ if (FMT_INSTALL)
|
||||
LIBRARY DESTINATION ${FMT_LIB_DIR}
|
||||
ARCHIVE DESTINATION ${FMT_LIB_DIR}
|
||||
PUBLIC_HEADER DESTINATION "${FMT_INC_DIR}/fmt"
|
||||
FILE_SET cxx_modules DESTINATION ${FMT_LIB_DIR}
|
||||
FRAMEWORK DESTINATION "."
|
||||
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user