CHECK_HEADERS([XINERAMA], [Xinerama headers], [X11/extensions/Xinerama.h])
CHECK_LIB([XV], [Xv], [XvQueryExtension])
CHECK_HEADERS([XV], [Xlib Xv extention], [X11/Xlib.h X11/extensions/Xvlib.h])
+CHECK_LIB([XFIXES], [Xfixes], [XFixesQueryVersion])
CHECK_LIB([BZ2], [bz2], [BZ2_bzDecompress])
CHECK_LIB([FONTCONFIG], [fontconfig], [FcInit])
CHECK_LIB([FREETYPE], [freetype], [FT_Init_FreeType])