configure: Add configure checks for libdrm and gudev

https://bugzilla.gnome.org/show_bug.cgi?id=782923

diff --git a/configure.ac b/configure.ac
index ff4831c7d058bd115d8759abddb7f257a49dc73c..eee94a4efdddb70826d891e91f78a76e210fa578 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -295,8 +295,17 @@ GST_PREFIX="`$PKG_CONFIG --variable=prefix gstreamer-$GST_API_VERSION`"
 AC_SUBST(GLIB_PREFIX)
 AC_SUBST(GST_PREFIX)
 
+dnl check for libdrm
+PKG_CHECK_MODULES(DRM, libdrm >= 2.4.55, HAVE_DRM=yes, HAVE_DRM=no)
+
 AG_GST_GL_CHECKS
 
+dnl check for gudev
+PKG_CHECK_MODULES(G_UDEV, gudev-1.0 , [
+        AC_DEFINE([HAVE_GUDEV], 1, [Define if gudev is installed])
+        HAVE_GUDEV="yes" ],
+        [HAVE_GUDEV="no"])
+
 dnl GTK is optional and only used in examples
 HAVE_GTK=no
 HAVE_GTK_X11=no