diff options
Diffstat (limited to 'find-modules')
| -rw-r--r-- | find-modules/FindX11_XCB.cmake | 97 |
1 files changed, 81 insertions, 16 deletions
diff --git a/find-modules/FindX11_XCB.cmake b/find-modules/FindX11_XCB.cmake index 687a4f3d..05d18d5a 100644 --- a/find-modules/FindX11_XCB.cmake +++ b/find-modules/FindX11_XCB.cmake @@ -2,18 +2,37 @@ # FindX11_XCB # ----------- # +# Try to find the X11 XCB compatibility library on a Unix system +# # This will define the following variables: # # ``X11_XCB_FOUND`` -# System has libX11-xcb +# True if (the requested version of) libX11-xcb is available +# ``X11_XCB_VERSION`` +# The version of libX11-xcb (this is not guaranteed to be set even when +# X11_XCB_FOUND is true) # ``X11_XCB_LIBRARIES`` -# Link these to use libX11-xcb +# This can be passed to target_link_libraries() instead of the ``EGL::EGL`` +# target # ``X11_XCB_INCLUDE_DIR`` -# The libX11-xcb include dir +# This should be passed to target_include_directories() if the target is not +# used for linking # ``X11_XCB_DEFINITIONS`` -# Compiler switches required for using libX11-xcb +# This should be passed to target_compile_options() if the target is not +# used for linking +# +# If ``X11_XCB_FOUND`` is TRUE, it will also define the following imported +# target: +# +# ``X11::XCB`` +# The X11 XCB compatibility library +# +# In general we recommend using the imported target, as it is easier to use. +# Bear in mind, however, that if the target is in the link interface of an +# exported library, it must be made available by the package config file. #============================================================================= +# Copyright 2014 Alex Merry <alex.merry@kde.org> # Copyright 2011 Fredrik Höglund <fredrik@kde.org> # Copyright 2008 Helio Chissini de Castro <helio@kde.org> # Copyright 2007 Matthias Kretz <kretz@kde.org> @@ -42,19 +61,65 @@ # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #============================================================================= -IF (NOT WIN32) - # use pkg-config to get the directories and then use these values - # in the FIND_PATH() and FIND_LIBRARY() calls - FIND_PACKAGE(PkgConfig) - PKG_CHECK_MODULES(PKG_X11_XCB QUIET x11-xcb) +if(CMAKE_VERSION VERSION_LESS 2.8.12) + message(FATAL_ERROR "CMake 2.8.12 is required by FindX11_XCB.cmake") +endif() +if(CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 2.8.12) + message(AUTHOR_WARNING "Your project should require at least CMake 2.8.12 to use FindX11_XCB.cmake") +endif() + +if(NOT WIN32) + # use pkg-config to get the directories and then use these values + # in the FIND_PATH() and FIND_LIBRARY() calls + find_package(PkgConfig) + pkg_check_modules(PKG_X11_XCB QUIET x11-xcb) + + set(X11_XCB_DEFINITIONS ${PKG_X11_XCB_CFLAGS_OTHER}) + set(X11_XCB_VERSION ${PKG_X11_XCB_VERSION}) + + find_path(X11_XCB_INCLUDE_DIR + NAMES X11/Xlib-xcb.h + HINTS ${PKG_X11_XCB_INCLUDE_DIRS} + ) + find_library(X11_XCB_LIBRARY + NAMES X11-xcb + HINTS ${PKG_X11_XCB_LIBRARY_DIRS} + ) + + include(FindPackageHandleStandardArgs) + find_package_handle_standard_args(X11_XCB + FOUND_VAR + X11_XCB_FOUND + REQUIRED_VARS + X11_XCB_LIBRARY + X11_XCB_INCLUDE_DIR + VERSION_VAR + X11_XCB_VERSION + ) + + if(X11_XCB_FOUND AND NOT TARGET X11::XCB) + add_library(X11::XCB UNKNOWN IMPORTED) + set_target_properties(X11::XCB PROPERTIES + IMPORTED_LOCATION "${X11_XCB_LIBRARY}" + INTERFACE_COMPILE_OPTIONS "${X11_XCB_DEFINITIONS}" + INTERFACE_INCLUDE_DIRECTORIES "${X11_XCB_INCLUDE_DIR}" + ) + endif() - SET(X11_XCB_DEFINITIONS ${PKG_X11_XCB_CFLAGS}) + mark_as_advanced(X11_XCB_INCLUDE_DIR X11_XCB_LIBRARY) - FIND_PATH(X11_XCB_INCLUDE_DIR NAMES X11/Xlib-xcb.h HINTS ${PKG_X11_XCB_INCLUDE_DIRS}) - FIND_LIBRARY(X11_XCB_LIBRARIES NAMES X11-xcb HINTS ${PKG_X11_XCB_LIBRARY_DIRS}) + # compatibility variables + set(X11_XCB_LIBRARIES ${X11_XCB_LIBRARY}) + set(X11_XCB_INCLUDE_DIRS ${X11_XCB_INCLUDE_DIR}) + set(X11_XCB_VERSION_STRING ${X11_XCB_VERSION}) - include(FindPackageHandleStandardArgs) - FIND_PACKAGE_HANDLE_STANDARD_ARGS(X11_XCB DEFAULT_MSG X11_XCB_LIBRARIES X11_XCB_INCLUDE_DIR) +else() + message(STATUS "FindX11_XCB.cmake cannot find X11-XCB on Windows systems.") + set(X11_XCB_FOUND FALSE) +endif() - MARK_AS_ADVANCED(X11_XCB_INCLUDE_DIR X11_XCB_LIBRARIES) -ENDIF (NOT WIN32) +include(FeatureSummary) +set_package_properties(X11_XCB PROPERTIES + URL "http://xorg.freedesktop.org/" + DESCRIPTION "A compatibility library for code that translates Xlib API calls into XCB calls" +) |