Index: configure.ac
===================================================================
RCS file: /sources/gnash/gnash/configure.ac,v
retrieving revision 1.11
diff -u -I'$Id.*$' -p -r1.11 configure.ac
--- configure.ac	8 Jan 2006 18:56:27 -0000	1.11
+++ configure.ac	10 Jan 2006 20:56:04 -0000
@@ -28,6 +28,20 @@ AM_INIT_AUTOMAKE(gnash, 0.7)
 AM_MAINTAINER_MODE
 AC_PROG_MAKE_SET
 
+AC_CHECK_HEADER(jpeglib.h)
+AC_CHECK_LIB(jpeg, jpeg_destroy_decompress, [],
+  AC_MSG_ERROR([
+Failed to link test code against the jpeg library. Maybe you need to
+install the development files for libjpeg?
+]))
+
+AC_CHECK_HEADER(png.h)
+AC_CHECK_LIB(png, png_write_info, [],
+  AC_MSG_ERROR([
+Failed to link test code against the PNG library. Maybe you need to
+install the development files for libpng?
+]))
+
 dnl Use the POSIX Threads library, if specified.
 AC_ARG_ENABLE(pthreads, [  --enable-pthreads       Enable support for pthreads],
 [case "${enableval}" in
@@ -145,6 +159,15 @@ esac], mp3=no)
 
 AC_PATH_FIREFOX
 
+if test x"$plugin" = x"yes"; then
+AC_CHECK_HEADER(glut.h)
+AC_CHECK_LIB(glut, glutInit, [],
+  AC_MSG_ERROR([
+Failed to link test code against the GLUT library which is needed for the
+browser plugin. Maybe you need to install the development files for libglut?
+]))
+fi
+
 AC_PROG_CC
 AC_PROG_CXX
 AC_EXEEXT
@@ -157,6 +180,17 @@ AM_PATH_JPEG
 AM_PATH_PNG
 
 AC_PATH_XTRA
+
+AC_CHECK_HEADER(X11/Xmu/Xmu.h)
+LIBS_SAVE="$LIBS"
+LIBS="$LIBS $X_LIBS"
+AC_CHECK_LIB(Xmu, XmuCvtStringToOrientation, [],
+  AC_MSG_ERROR([
+Failed to link test code against the Xmu library. Maybe you need to
+install the development files for libxmu?
+]))
+LIBS="$LIBS_SAVE"
+
 AM_PATH_SDL
 AM_PATH_SDL_MIXER
 AM_PATH_OPENGL
@@ -302,4 +336,4 @@ fi
 if test x"$nogo" = x"true"; then
 echo ""
   AC_MSG_ERROR([Please install required packages])
-fi
\ No newline at end of file
+fi
Index: plugin/plugin.cpp
===================================================================
RCS file: /sources/gnash/gnash/plugin/plugin.cpp,v
retrieving revision 1.6
diff -u -I'$Id.*$' -p -r1.6 plugin.cpp
--- plugin/plugin.cpp	7 Jan 2006 18:14:56 -0000	1.6
+++ plugin/plugin.cpp	10 Jan 2006 20:56:05 -0000
@@ -29,7 +29,6 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <Xm/XmAll.h>
 #include <X11/XKBlib.h>
 #include <X11/keysym.h>
 #include <X11/Sunkeysym.h>