126 lines
6.2 KiB
CMake
126 lines
6.2 KiB
CMake
include(CheckCXXCompilerFlag)
|
|
|
|
###################################################
|
|
# Activate C++14
|
|
#
|
|
# Uses: target_activate_cpp14(buildtarget)
|
|
###################################################
|
|
function(target_activate_cpp14 TARGET)
|
|
if("${CMAKE_VERSION}" VERSION_GREATER "3.1")
|
|
set_property(TARGET ${TARGET} PROPERTY CXX_STANDARD 14)
|
|
set_property(TARGET ${TARGET} PROPERTY CXX_STANDARD_REQUIRED ON)
|
|
else("${CMAKE_VERSION}" VERSION_GREATER "3.1")
|
|
check_cxx_compiler_flag("-std=c++14" COMPILER_HAS_CPP14_SUPPORT)
|
|
if (COMPILER_HAS_CPP14_SUPPORT)
|
|
target_compile_options(${TARGET} PUBLIC -std=c++14)
|
|
else(COMPILER_HAS_CPP14_SUPPORT)
|
|
check_cxx_compiler_flag("-std=c++1y" COMPILER_HAS_CPP14_PARTIAL_SUPPORT)
|
|
if (COMPILER_HAS_CPP14_PARTIAL_SUPPORT)
|
|
target_compile_options(${TARGET} PUBLIC -std=c++1y)
|
|
else()
|
|
message(FATAL_ERROR "Compiler doesn't support C++14")
|
|
endif()
|
|
endif(COMPILER_HAS_CPP14_SUPPORT)
|
|
endif("${CMAKE_VERSION}" VERSION_GREATER "3.1")
|
|
# Ideally, we'd like to use libc++ on linux as well, but:
|
|
# - http://stackoverflow.com/questions/37096062/get-a-basic-c-program-to-compile-using-clang-on-ubuntu-16
|
|
# - https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=808086
|
|
# so only use it on Apple systems...
|
|
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND APPLE)
|
|
target_compile_options(${TARGET} PUBLIC -stdlib=libc++)
|
|
endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND APPLE)
|
|
endfunction(target_activate_cpp14)
|
|
|
|
#################################################
|
|
# Enable style compiler warnings
|
|
#
|
|
# Uses: target_enable_style_warnings(buildtarget)
|
|
#################################################
|
|
function(target_enable_style_warnings TARGET)
|
|
target_compile_options(${TARGET} PRIVATE -Wall -Wextra)
|
|
endfunction(target_enable_style_warnings)
|
|
|
|
##################################################
|
|
# Add boost to the project
|
|
#
|
|
# Uses:
|
|
# target_add_boost(buildtarget) # if you're only using header-only boost libs
|
|
# target_add_boost(buildtarget system filesystem) # list all libraries to link against in the dependencies
|
|
##################################################
|
|
function(target_add_boost TARGET)
|
|
# Load boost libraries
|
|
if(NOT DEFINED Boost_USE_STATIC_LIBS OR Boost_USE_STATIC_LIBS)
|
|
# Many supported systems don't have boost >= 1.56. Better link it statically.
|
|
message(STATUS "Boost will be statically linked")
|
|
set(Boost_USE_STATIC_LIBS ON)
|
|
else(NOT DEFINED Boost_USE_STATIC_LIBS OR Boost_USE_STATIC_LIBS)
|
|
message(STATUS "Boost will be dynamically linked")
|
|
set(Boost_USE_STATIC_LIBS OFF)
|
|
endif(NOT DEFINED Boost_USE_STATIC_LIBS OR Boost_USE_STATIC_LIBS)
|
|
find_package(Boost 1.56.0
|
|
REQUIRED
|
|
COMPONENTS ${ARGN})
|
|
target_include_directories(${TARGET} SYSTEM PUBLIC ${Boost_INCLUDE_DIRS})
|
|
target_link_libraries(${TARGET} PUBLIC ${Boost_LIBRARIES})
|
|
if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
|
|
# Also link to rt, because boost thread needs that.
|
|
target_link_libraries(${TARGET} PUBLIC rt)
|
|
endif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
|
|
endfunction(target_add_boost)
|
|
|
|
##################################################
|
|
# Specify that a specific minimal version of gcc is required
|
|
#
|
|
# Uses:
|
|
# require_gcc_version(4.9)
|
|
##################################################
|
|
function(require_gcc_version VERSION)
|
|
if (CMAKE_COMPILER_IS_GNUCXX)
|
|
execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
|
|
if (GCC_VERSION VERSION_LESS ${VERSION})
|
|
message(FATAL_ERROR "Needs at least gcc version ${VERSION}, found gcc ${GCC_VERSION}")
|
|
endif (GCC_VERSION VERSION_LESS ${VERSION})
|
|
endif (CMAKE_COMPILER_IS_GNUCXX)
|
|
endfunction(require_gcc_version)
|
|
|
|
##################################################
|
|
# Specify that a specific minimal version of clang is required
|
|
#
|
|
# Uses:
|
|
# require_clang_version(3.5)
|
|
##################################################
|
|
function(require_clang_version VERSION)
|
|
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
|
|
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${VERSION})
|
|
message(FATAL_ERROR "Needs at least clang version ${VERSION}, found clang ${CMAKE_CXX_COMPILER_VERSION}")
|
|
endif (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${VERSION})
|
|
endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
|
|
endfunction(require_clang_version)
|
|
|
|
##################################################
|
|
# Find the location of a library and return its full path in OUTPUT_VARIABLE.
|
|
# If PATH_VARIABLE points to a defined variable, then the library will only be searched in this path.
|
|
# If PATH_VARIABLE points to a undefined variable, default system locations will be searched.
|
|
#
|
|
# Uses (the following will search for fuse in system locations by default, and if the user passes -DFUSE_LIB_PATH to cmake, it will only search in this path.
|
|
# find_library_with_path(MYLIBRARY fuse FUSE_LIB_PATH)
|
|
# target_link_library(target ${MYLIBRARY})
|
|
##################################################
|
|
function(find_library_with_path OUTPUT_VARIABLE LIBRARY_NAME PATH_VARIABLE)
|
|
if(${PATH_VARIABLE})
|
|
find_library(${OUTPUT_VARIABLE} ${LIBRARY_NAME} PATHS ${${PATH_VARIABLE}} NO_DEFAULT_PATH)
|
|
if (${OUTPUT_VARIABLE} MATCHES NOTFOUND)
|
|
message(FATAL_ERROR "Didn't find ${LIBRARY_NAME} in path specified by the ${PATH_VARIABLE} parameter (${${PATH_VARIABLE}}). Pass in the correct path or remove the parameter to try common system locations.")
|
|
else(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
|
|
message(STATUS "Found ${LIBRARY_NAME} in user-defined path ${${PATH_VARIABLE}}")
|
|
endif(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
|
|
else(${PATH_VARIABLE})
|
|
find_library(${OUTPUT_VARIABLE} ${LIBRARY_NAME})
|
|
if (${OUTPUT_VARIABLE} MATCHES NOTFOUND)
|
|
message(FATAL_ERROR "Didn't find ${LIBRARY_NAME} library. If ${LIBRARY_NAME} is installed, try passing in the library location with -D${PATH_VARIABLE}=/path/to/${LIBRARY_NAME}/lib.")
|
|
else(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
|
|
message(STATUS "Found ${LIBRARY_NAME} in system location")
|
|
endif(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
|
|
endif(${PATH_VARIABLE})
|
|
endfunction(find_library_with_path)
|