rexy712/rexbacklight
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Improved cmake build efficiency

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This commit is contained in:
rexy712 2018-11-24 09:41:09 -08:00
parent 9d511f4635
commit 37ec303118
1 changed files with 25 additions and 4 deletions
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29
CMakeLists.txt
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@ -1,15 +1,20 @@
include(CMakeDependentOption) include(CMakeDependentOption)
cmake_minimum_required(VERSION 3.0.2) cmake_minimum_required(VERSION 3.0.2)
project(rexbacklight) project(rexbacklight)
#setup common defines for C files
set(rexbacklight_VERSION_MAJOR 1) set(rexbacklight_VERSION_MAJOR 1)
set(rexbacklight_VERSION_MINOR 2) set(rexbacklight_VERSION_MINOR 3)
set(INCLUDE_PATH ${CMAKE_SOURCE_DIR}/include) set(INCLUDE_PATH ${CMAKE_SOURCE_DIR}/include)
configure_file( configure_file(
"${INCLUDE_PATH}/config.h.in" "${INCLUDE_PATH}/config.h.in"
"${INCLUDE_PATH}/config.h" "${INCLUDE_PATH}/config.h"
) )
#set project include directory
include_directories("${INCLUDE_PATH}") include_directories("${INCLUDE_PATH}")
#setup cmake options
option(BUILD_REXLEDCTL "Build led control program" ON) option(BUILD_REXLEDCTL "Build led control program" ON)
option(BUILD_REXBACKLIGHT "Build backlight control program" ON) option(BUILD_REXBACKLIGHT "Build backlight control program" ON)
option(XBACKLIGHT_COMPAT "Use xbacklight style options (eg -get -inc -dec)" OFF) option(XBACKLIGHT_COMPAT "Use xbacklight style options (eg -get -inc -dec)" OFF)
@ -24,21 +29,37 @@ if(XBACKLIGHT_COMPAT)
add_definitions(-DXBACKLIGHT_COMPAT_OPTIONS) add_definitions(-DXBACKLIGHT_COMPAT_OPTIONS)
endif() endif()
#locate rjp library requirements
find_library(RJP_LIB rjp)
find_path(RJP_HEADER_DIR rjp.h)
#temporary library (no actual library generated)
add_library(common_srcs OBJECT src/cmd.c src/common.c)
if(BUILD_REXLEDCTL) if(BUILD_REXLEDCTL)
add_executable (rexledctl src/rexbacklight.c src/cmd.c src/common.c) add_executable (rexledctl src/rexbacklight.c)
target_compile_definitions(rexledctl PRIVATE REXLEDCTL) add_dependencies(rexledctl common_srcs) #force common_srcs to be built first
target_compile_definitions(rexledctl PRIVATE REXLEDCTL) #define REXLEDCTL in C files
target_link_libraries(rexledctl PRIVATE "${RJP_LIB}") #link with rjp
target_link_libraries(rexledctl PRIVATE $<TARGET_OBJECTS:common_srcs>) #link with the common_srcs "library"
target_include_directories(rexledctl PUBLIC "${RJP_HEADER_DIR}") #include rjp.h directory
install(TARGETS rexledctl RUNTIME DESTINATION bin) install(TARGETS rexledctl RUNTIME DESTINATION bin)
if(INSTALL_UDEV_LED_RULE) if(INSTALL_UDEV_LED_RULE)
install(FILES ${CMAKE_SOURCE_DIR}/rules/91-leds.rules DESTINATION ${UDEV_DIR}) install(FILES ${CMAKE_SOURCE_DIR}/rules/91-leds.rules DESTINATION ${UDEV_DIR})
endif() endif()
endif() endif()
if(BUILD_REXBACKLIGHT) if(BUILD_REXBACKLIGHT)
add_executable (rexbacklight src/rexbacklight.c src/cmd.c src/common.c) add_executable (rexbacklight src/rexbacklight.c)
add_dependencies(rexledctl common_srcs)
target_compile_definitions(rexbacklight PRIVATE REXBACKLIGHT) target_compile_definitions(rexbacklight PRIVATE REXBACKLIGHT)
target_link_libraries(rexbacklight PRIVATE "${RJP_LIB}")
target_link_libraries(rexbacklight PRIVATE $<TARGET_OBJECTS:common_srcs>)
target_include_directories(rexbacklight PUBLIC "${RJP_HEADER_DIR}")
install(TARGETS rexbacklight RUNTIME DESTINATION bin) install(TARGETS rexbacklight RUNTIME DESTINATION bin)
if(INSTALL_UDEV_BACKLIGHT_RULE) if(INSTALL_UDEV_BACKLIGHT_RULE)
install(FILES ${CMAKE_SOURCE_DIR}/rules/91-backlight.rules DESTINATION ${UDEV_DIR}) install(FILES ${CMAKE_SOURCE_DIR}/rules/91-backlight.rules DESTINATION ${UDEV_DIR})
endif() endif()
endif() endif()
#uninstall target
add_custom_target(uninstall cat install_manifest.txt | xargs rm) add_custom_target(uninstall cat install_manifest.txt | xargs rm)