add dependence check in autoconfig

diff --git a/configure.ac b/configure.ac
index 1aba565..9a3f3cd 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -34,6 +34,10 @@ AC_PROG_CC
 AC_HEADER_STDC
 AC_SYS_LARGEFILE
 
+PKG_CHECK_MODULES([X11], [x11])
+PKG_CHECK_MODULES([XEXT], [xext])
+PKG_CHECK_MODULES([XDAMAGE], [xfixes])
+PKG_CHECK_MODULES([XDAMAGE], [xdamage])
 PKG_CHECK_MODULES([libva_la], [libdrm])
 
 pkgconfigdir=${libdir}/pkgconfig