This commit changes many aspect of our cmake build system
- shared libraries are compiled by default:
* this modifies RPATH of unix executables;
* this will prevent a lot of linking issues, esp. from pascal world;
* the old behaviour (static libs) is still available with -DBUILD_SHARED_LIBS=off;
* of course in this case you have to provide the full list of dependencies with FPFLAGS and CMAKE_C_FLAGS;
- pascal is now fully integrated with cmake, meaning you can just do add_sources and use CMAKE_Pascal_FLAGS:
* some of the language features are only partially implemented, for example .inc files will not get rebuilt if you modify them;
* target_link_libraries for pascal targets is just dummy as linking is determined within pascal files;
* universal builds for osx are not available any more;
- bundled libraries and system libraries are addressed using the target name:
* this avoids depedency tracking;
* this allows to name output as we wish.
#where to build libs and bins
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
#these variables are for non-makefile generators
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${EXECUTABLE_OUTPUT_PATH})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${EXECUTABLE_OUTPUT_PATH})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${EXECUTABLE_OUTPUT_PATH})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBRARY_OUTPUT_PATH})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_DEBUG ${LIBRARY_OUTPUT_PATH})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_RELEASE ${LIBRARY_OUTPUT_PATH})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBRARY_OUTPUT_PATH})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE ${LIBRARY_OUTPUT_PATH})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_DEBUG ${LIBRARY_OUTPUT_PATH})
#resource paths
if(UNIX AND NOT APPLE)
set(target_binary_install_dir "bin")
set(target_library_install_dir "lib")
string(SUBSTRING "${DATA_INSTALL_DIR}" 0 1 sharepath_start)
if (NOT (${sharepath_start} MATCHES "/"))
set(HEDGEWARS_DATADIR "${CMAKE_INSTALL_PREFIX}/${DATA_INSTALL_DIR}/")
else()
set(HEDGEWARS_DATADIR "${DATA_INSTALL_DIR}/")
endif()
set(HEDGEWARS_FULL_DATADIR "${HEDGEWARS_DATADIR}")
else()
set(target_binary_install_dir "./")
if(APPLE)
set(target_library_install_dir "../Frameworks/")
set(CMAKE_INSTALL_PREFIX "Hedgewars.app/Contents/MacOS/")
set(HEDGEWARS_DATADIR "../Resources/")
set(HEDGEWARS_FULL_DATADIR "/Applications/${CMAKE_INSTALL_PREFIX}/${HEDGEWARS_DATADIR}")
elseif(WIN32)
set(target_library_install_dir "./")
set(HEDGEWARS_DATADIR "./")
set(HEDGEWARS_FULL_DATADIR "${CMAKE_INSTALL_PREFIX}/")
link_directories("${EXECUTABLE_OUTPUT_PATH}" "${CMAKE_SOURCE_DIR}/misc/winutils/bin")
endif()
endif()
#RPATH SETTINGS
#necessary for dynamic libraries on UNIX, ignored elsewhere
#use, i.e. don't skip the full RPATH for the build tree
set(CMAKE_SKIP_BUILD_RPATH FALSE)
set(CMAKE_SKIP_INSTALL_RPATH FALSE)
#it's safe to use our RPATH because it is relative
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
#paths where to find libraries (final slash not optional):
# - the first is relative to the executable
# - the second is the same directory of the executable (so it runs in bin/)
# - the third one is the full path of the system dir
#source http://www.cmake.org/pipermail/cmake/2008-January/019290.html
set(CMAKE_INSTALL_RPATH "$ORIGIN/../${target_library_install_dir}/:$ORIGIN/:${CMAKE_INSTALL_PREFIX}/${target_library_install_dir}/")
if(UNIX AND NOT APPLE)
#make sure $ORIGIN is respected
add_linker_flag("-zorigin")
#apply RPATH settings to pascal executables
add_flag_append(CMAKE_Pascal_FLAGS "-k-rpath -k'${CMAKE_INSTALL_RPATH}'")
#until we link with external things there is no need to set rpath on haskell
#should you need it remember to escape $ with $$
#list(APPEND haskell_flags "-optl" "-Wl,-rpath,'${CMAKE_INSTALL_RPATH_ESCAPED}'")
endif()
#add the automatically determined parts of the RPATH
#which point to directories outside the build tree to the install RPATH
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE)
#install_name_tool magic for OS X
set(CMAKE_INSTALL_NAME_DIR "@executable_path/../Frameworks")