Implement header-only target as INTERFACE lib

This commit is contained in:
Loo Rong Jie 2018-08-22 17:00:51 +08:00
parent ac533e18db
commit fcc476cce5

View file

@ -136,34 +136,26 @@ function(absl_cc_library)
if(ABSL_CC_LIB_SRCS_LEN)
add_library(${_NAME} STATIC ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS})
else()
set(__dummy_header_only_lib_file "${CMAKE_CURRENT_BINARY_DIR}/${_NAME}_header_only_dummy.cc")
if(NOT EXISTS ${__dummy_header_only_lib_file})
file(WRITE ${__dummy_header_only_lib_file}
"/* generated file for header-only cmake target */
namespace absl {
// single meaningless symbol
void ${_NAME}__header_fakesym() {}
} // namespace absl")
endif()
add_library(${_NAME} ${__dummy_header_only_lib_file} ${ABSL_CC_LIB_HDRS})
endif()
target_compile_options(${_NAME} PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_CC_LIB_COPTS})
target_include_directories(${_NAME}
PUBLIC ${ABSL_COMMON_INCLUDE_DIRS})
target_compile_options(${_NAME}
PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_CC_LIB_COPTS})
target_link_libraries(${_NAME}
PUBLIC ${ABSL_CC_LIB_DEPS}
PRIVATE ${ABSL_CC_LIB_LINKOPTS}
)
target_compile_definitions(${_NAME} PUBLIC ${ABSL_CC_LIB_DEFINES})
target_include_directories(${_NAME}
PUBLIC ${ABSL_COMMON_INCLUDE_DIRS}
)
# Add all Abseil targets to a a folder in the IDE for organization.
set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
else()
add_library(${_NAME} INTERFACE)
target_include_directories(${_NAME} INTERFACE ${ABSL_COMMON_INCLUDE_DIRS})
target_link_libraries(${_NAME}
INTERFACE ${ABSL_CC_LIB_DEPS} ${ABSL_CC_LIB_LINKOPTS}
)
target_compile_definitions(${_NAME} INTERFACE ${ABSL_CC_LIB_DEFINES})
endif()
if(ABSL_CC_LIB_VISIBILITY_PUBLIC)
add_library(absl::${ABSL_CC_LIB_NAME} ALIAS ${_NAME})