Index: configure
===================================================================
--- configure	(revision 154)
+++ configure	(working copy)
@@ -7346,12 +7346,12 @@
         pkg_cv_ZAZ_CFLAGS="$ZAZ_CFLAGS"
     else
         if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl vorbisfile theoraenc theoradec\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "sdl vorbisfile theoraenc theoradec") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl vorbisfile vorbis theoraenc theoradec\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "sdl vorbisfile vorbis theoraenc theoradec") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZAZ_CFLAGS=`$PKG_CONFIG --cflags "sdl vorbisfile theoraenc theoradec" 2>/dev/null`
+  pkg_cv_ZAZ_CFLAGS=`$PKG_CONFIG --cflags "sdl vorbisfile vorbis theoraenc theoradec" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -7364,12 +7364,12 @@
         pkg_cv_ZAZ_LIBS="$ZAZ_LIBS"
     else
         if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl vorbisfile theoraenc theoradec\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "sdl vorbisfile theoraenc theoradec") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl vorbisfile vorbis theoraenc theoradec\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "sdl vorbisfile vorbis theoraenc theoradec") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZAZ_LIBS=`$PKG_CONFIG --libs "sdl vorbisfile theoraenc theoradec" 2>/dev/null`
+  pkg_cv_ZAZ_LIBS=`$PKG_CONFIG --libs "sdl vorbisfile vorbis theoraenc theoradec" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -7388,14 +7388,14 @@
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ZAZ_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "sdl vorbisfile theoraenc theoradec"`
+	        ZAZ_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "sdl vorbisfile vorbis theoraenc theoradec"`
         else
-	        ZAZ_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "sdl vorbisfile theoraenc theoradec"`
+	        ZAZ_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "sdl vorbisfile vorbis theoraenc theoradec"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ZAZ_PKG_ERRORS" >&5
 
-	as_fn_error "Package requirements (sdl vorbisfile theoraenc theoradec) were not met:
+	as_fn_error "Package requirements (sdl vorbisfile vorbis theoraenc theoradec) were not met:
 
 $ZAZ_PKG_ERRORS
 
Index: configure.ac
===================================================================
--- configure.ac	(revision 154)
+++ configure.ac	(working copy)
@@ -10,7 +10,7 @@
 AC_HEADER_STDC
 AC_PROG_RANLIB
 
-PKG_CHECK_MODULES(ZAZ, [sdl vorbisfile theoraenc theoradec])
+PKG_CHECK_MODULES(ZAZ, [sdl vorbisfile vorbis theoraenc theoradec])
 PKG_CHECK_MODULES(FTGL, ftgl >= 2.1.3)
 
 AC_CHECK_LIB(SDL_image, IMG_Load, [], AC_MSG_ERROR(no SDL_image found))