--- orig/configure.ac	2008-10-28 11:57:18.000000000 +0100
+++ patched/configure.ac	2009-07-05 15:19:37.000000000 +0200
@@ -11,12 +11,18 @@
 AC_PROG_CC
 AC_PROG_LIBTOOL

+
+AC_ARG_ENABLE([facedetect], [  --enable-facedetect     enable facedetect plugin (needs opencv)],
+  [facedetect=${enableval}], [facedetect=no])
+
 HAVE_OPENCV=false
-PKG_CHECK_MODULES(OPENCV, opencv >= 1.0.0, [HAVE_OPENCV=true], [true])
-if test x$HAVE_OPENCV = xfalse; then
-  AC_MSG_WARN([*** opencv >= 1.0.0 not found - this program enables optional plugin with the Open Source Computer Vision library >= 1.0.0 http://opencvlibrary.sourceforge.net/ ***])
-else
-  OPENCV_CFLAGS="$OPENCV_CFLAGS -DOPENCV_PREFIX=`pkg-config opencv --variable=prefix`"
+if test "x${facedetect}" = xyes; then
+  PKG_CHECK_MODULES(OPENCV, opencv >= 1.0.0, [HAVE_OPENCV=true], [true])
+  if test x$HAVE_OPENCV = xfalse; then
+    AC_MSG_WARN([*** opencv >= 1.0.0 not found - this program enables optional plugin with the Open Source Computer Vision library >= 1.0.0 http://opencvlibrary.sourceforge.net/ ***])
+  else
+    OPENCV_CFLAGS="$OPENCV_CFLAGS -DOPENCV_PREFIX=`pkg-config opencv --variable=prefix`"
+  fi
 fi
 AM_CONDITIONAL([HAVE_OPENCV], [test x$HAVE_OPENCV = xtrue])

@@ -35,11 +41,16 @@
 AC_FUNC_MALLOC
 AC_CHECK_FUNCS([floor memset pow sqrt])

+
+AC_ARG_ENABLE([scale0tilt], [  --enable-scale0tilt     enable scale0tilt plugin (needs gavl)],
+  [scale0tilt=${enableval}], [scale0tilt=no])
+
 HAVE_GAVL=false
-PKG_CHECK_MODULES(GAVL, gavl >= 0.2.3, [HAVE_GAVL=true], [true])
-if test x$HAVE_GAVL = xfalse; then
-  AC_MSG_WARN([*** gavl >= 0.2.3 not found - this program enables optional plugin with the gmerlin audio
-  video library >= 0.2.3 http://gmerlin.sourceforge.net/ ***])
+if test "x${scale0tilt}" = xyes; then
+  PKG_CHECK_MODULES(GAVL, gavl >= 0.2.3, [HAVE_GAVL=true], [true])
+  if test x$HAVE_GAVL = xfalse; then
+    AC_MSG_WARN([*** gavl >= 0.2.3 not found - this program enables optional plugin with the gmerlin audio video library >= 0.2.3 http://gmerlin.sourceforge.net/ ***])
+  fi
 fi
 AM_CONDITIONAL([HAVE_GAVL], [test x$HAVE_GAVL = xtrue])