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Create & install a cmake package file (part 3)

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The cargo target directory tree is now populated with a cmake package
file and that's also installed into the prefix specified with the cargo
cmake xtask.

As a consequence, the cpptest example can be built by first building the
cmake package:

    cargo xtask cmake

    or

    cargo xtask cmake --release --target some-triplet)

    or

    cargo xtask cmake --release --prefix /somewhere --install

and then run cmake in the cpptest example with a prefix path:

    -DCMAKE_PREFIX_PATH=/where/you/installed/it or simply
    -DCMAKE_PREFIX_PATH=../../target/debug for example.

Pending still is the sixtyfps compiler tool installation and discovery.
This commit is contained in:
Simon Hausmann 2020-06-04 15:27:27 +02:00
parent a2c5e66bee
commit 2e0a5ddb25
3 changed files with 67 additions and 39 deletions
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78
api/sixtyfps-cpp/cmake/CMakeLists.txt
View file

@ -2,27 +2,23 @@ cmake_minimum_required(VERSION 3.16)
project(SixtyFPS LANGUAGES CXX)
add_library(SixtyFPS INTERFACE)
foreach(lib_path IN LISTS SIXTYFPS_INTERNAL_LIBS)
get_filename_component(lib_name "${lib_path}" NAME_WE)
add_library(internal_lib_${lib_name} OBJECT IMPORTED)
set_property(TARGET internal_lib_${lib_name} PROPERTY IMPORTED_OBJECTS "${lib_path}")
add_library(${lib_name} STATIC IMPORTED)
set_property(TARGET ${lib_name} PROPERTY IMPORTED_LOCATION "${lib_path}")
list(APPEND resolved_internal_libs "$<TARGET_OBJECTS:internal_lib_${lib_name}>")
target_link_libraries(SixtyFPS INTERFACE ${lib_name})
list(APPEND internal_libs ${lib_name})
install(FILES ${lib_path} TYPE LIB)
endforeach()
add_library(SixtyFPS STATIC lib.cpp ${resolved_internal_libs})
# When synthesizing the final .a file, make sure that ar flattens instead of creating a .a that just contains a .a (won't be usable)
if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> crT <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> cruT <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_CXX_ARCHIVE_APPEND "<CMAKE_AR> ruT <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_C_ARCHIVE_APPEND "<CMAKE_AR> ruT <TARGET> <LINK_FLAGS> <OBJECTS>")
endif()
if (DEFINED SIXTYFPS_EXTERNAL_LIBS)
target_link_libraries(SixtyFPS PRIVATE ${SIXTYFPS_EXTERNAL_LIBS})
target_link_libraries(SixtyFPS INTERFACE ${SIXTYFPS_EXTERNAL_LIBS})
endif()
set(api_headers
@ -36,34 +32,40 @@ foreach(header IN LISTS api_headers)
set_property(TARGET SixtyFPS APPEND PROPERTY PUBLIC_HEADER ../include/${header})
endforeach()
target_include_directories(SixtyFPS PUBLIC
file(GLOB_RECURSE generated_headers RELATIVE_PATH "${CMAKE_BINARY_DIR}" "${CMAKE_BINARY_DIR}/include/*.h")
foreach(header IN LISTS generated_headers)
set_property(TARGET SixtyFPS APPEND PROPERTY PUBLIC_HEADER ${header})
endforeach()
target_include_directories(SixtyFPS INTERFACE
$<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/include>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include>
$<INSTALL_INTERFACE:include/sixtyfps>
)
export(TARGETS SixtyFPS NAMESPACE SixtyFPS:: FILE "${CMAKE_BINARY_DIR}/cmake/SixtyFPSTargets.cmake")
export(TARGETS SixtyFPS NAMESPACE SixtyFPS:: FILE "${CMAKE_BINARY_DIR}/lib/cmake/SixtyFPS/SixtyFPSTargets.cmake")
#install(EXPORT SixtyFPSTargets NAMESPACE SixtyFPS:: DESTINATION lib/cmake/SixtyFPS)
#
#install(TARGETS SixtyFPS
# EXPORT SixtyFPSTargets
# LIBRARY DESTINATION lib
# PUBLIC_HEADER DESTINATION include/sixtyfps
#)
#
#include(CMakePackageConfigHelpers)
#
#configure_package_config_file("SixtyFPSConfig.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/SixtyFPSConfig.cmake" INSTALL_DESTINATION lib/cmake/SixtyFPS)
#
#write_basic_package_version_file(
# ${CMAKE_CURRENT_BINARY_DIR}/SixtyFPSConfigVersion.cmake
# VERSION 1.0.0
# COMPATIBILITY SameMajorVersion
#)
#
#install(FILES
# "${CMAKE_CURRENT_BINARY_DIR}/SixtyFPSConfig.cmake"
# "${CMAKE_CURRENT_BINARY_DIR}/SixtyFPSConfigVersion.cmake"
# DESTINATION lib/cmake/SixtyFPS
#)
install(EXPORT SixtyFPSTargets NAMESPACE SixtyFPS:: DESTINATION lib/cmake/SixtyFPS)
install(TARGETS SixtyFPS
EXPORT SixtyFPSTargets
LIBRARY DESTINATION lib
PUBLIC_HEADER DESTINATION include/sixtyfps
)
include(CMakePackageConfigHelpers)
configure_package_config_file("SixtyFPSConfig.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/SixtyFPS/SixtyFPSConfig.cmake" INSTALL_DESTINATION lib/cmake/SixtyFPS)
write_basic_package_version_file(
${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/SixtyFPS/SixtyFPSConfigVersion.cmake
VERSION 1.0.0
COMPATIBILITY SameMajorVersion
)
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/SixtyFPS/SixtyFPSConfig.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/SixtyFPS/SixtyFPSConfigVersion.cmake"
DESTINATION lib/cmake/SixtyFPS
)

26
api/sixtyfps-cpp/cmake/SixtyFPSConfig.cmake.in Normal file
View file

@ -0,0 +1,26 @@
@PACKAGE_INIT@
get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
if(_IMPORT_PREFIX STREQUAL "/")
set(_IMPORT_PREFIX "")
endif()
foreach(internal_lib IN ITEMS @internal_libs@)
add_library(${internal_lib} STATIC IMPORTED)
set(fn "${internal_lib}${CMAKE_STATIC_LIBRARY_SUFFIX}")
# Don't look in lib when we're inside a cargo tree, as cargo doesn't use a lib/ sub-dir.
if(EXISTS "${_IMPORT_PREFIX}/${fn}")
else()
set(fn "lib/${fn}")
endif()
set_property(TARGET ${internal_lib} PROPERTY IMPORTED_LOCATION "${_IMPORT_PREFIX}/${fn}")
set(fn)
endforeach()
set(_IMPORT_PREFIX)
include("${CMAKE_CURRENT_LIST_DIR}/SixtyFPSTargets.cmake")