Add basic check for libdvdrad, libdvdnav, libdvdcss

these libraries are required to build kplayer with DVD support in various flavours.

The libraries are available from debian multimedia or directly from the VLAN/VLC project.

Signed-off-by: Emanoil Kotsev <deloptes@gmail.com>

ConfigureChecks.cmake

@@ -29,3 +29,49 @@ endif( )
 #### check for headers
 
 check_include_file( "sys/sysmacros.h" HAVE_SYS_SYSMACROS_H )
+
+#### check for libdvdread, libdvdnav and libdvdcss
+
+macro( tqt_message )
+    message( STATUS "${ARGN}" )
+endmacro( )
+
+set(_dvdlibs dvdread dvdnav)
+set(_handlevars LIBDVD_INCLUDE_DIRS DVDREAD_LIBRARY DVDNAV_LIBRARY)
+
+if(WITH_ALL_OPTIONS)
+    set(WITH_DVDCSS "ON")
+endif()
+
+if(WITH_DVDCSS)
+    list(APPEND _dvdlibs libdvdcss)
+    list(APPEND _handlevars DVDCSS_LIBRARY LIBDVDCSS_INCLUDE_DIRS )
+endif()
+
+if(PKG_CONFIG_FOUND)
+    pkg_check_modules(PC_DVD ${_dvdlibs} QUIET)
+endif()
+
+find_path(LIBDVD_INCLUDE_DIRS dvdnav/dvdnav.h PATHS ${PC_DVD_INCLUDE_DIRS})
+find_library(DVDREAD_LIBRARY NAMES dvdread libdvdread PATHS ${PC_DVD_dvdread_LIBDIR})
+find_library(DVDNAV_LIBRARY NAMES dvdnav libdvdnav PATHS ${PC_DVD_dvdnav_LIBDIR})
+
+if(WITH_DVDCSS)
+    find_path(LIBDVDCSS_INCLUDE_DIRS dvdcss/dvdcss.h PATHS ${PC_DVD_INCLUDE_DIRS})
+    find_library(DVDCSS_LIBRARY NAMES dvdcss libdvdcss PATHS ${PC_DVD_libdvdcss_LIBDIR})
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(LibDvd REQUIRED_VARS ${_handlevars})
+if(LIBDVD_FOUND)
+    list(APPEND LIBDVD_LIBRARIES ${DVDREAD_LIBRARY})
+    list(APPEND LIBDVD_LIBRARIES ${DVDNAV_LIBRARY})
+    if(WITH_DVDCSS)
+        list(APPEND LIBDVD_LIBRARIES ${DVDCSS_LIBRARY})
+    endif()
+    foreach(_dvd_lib ${LIBDVD_LIBRARIES})
+        tqt_message( "       ${_dvd_lib}" )
+    endforeach()
+else()
+    tde_message_fatal( "  DVD libraries not found" )
+endif()