Update libogg to 1.3.1.

lib-src/libogg/Makefile.am

@@ -1,8 +1,10 @@
 ## Process this file with automake to produce Makefile.in
 
-AUTOMAKE_OPTIONS = foreign 1.6 dist-zip
 
-SUBDIRS = src include win32
+#AUTOMAKE_OPTIONS = foreign 1.6 dist-zip
+AUTOMAKE_OPTIONS = foreign 1.11 dist-zip dist-xz
+
+SUBDIRS = src include doc
 
 m4datadir = $(datadir)/aclocal
 m4data_DATA = ogg.m4
@@ -10,21 +12,19 @@ m4data_DATA = ogg.m4
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = ogg.pc
 
-# we include the whole debian/ dir in EXTRA_DIST because there's a problem
-# with autotools and HFS+ MacOSX file systems that caused debian/Makefile.am
-# to pick up on the lowercase changelog file and add ChangeLog to DIST_COMMON
-# because of it, breaking make dist.  This works just as well.
 EXTRA_DIST = README AUTHORS CHANGES COPYING \
 	libogg.spec libogg.spec.in \
 	ogg.m4 ogg.pc.in ogg-uninstalled.pc.in \
-	macos macosx debian
+	macosx win32
 
 dist-hook:
-	rm -rf `find $(distdir)/debian -name .svn`
-	rm -rf `find $(distdir)/debian -name "Makefile*"`
-	rm -rf `find $(distdir)/macos -name .svn`
-	rm -rf `find $(distdir)/macosx -name .svn`
-
+	for item in $(EXTRA_DIST); do \
+	  if test -d $$item; then \
+	    echo -n "cleaning dir $$item for distribution..."; \
+	    rm -rf `find $(distdir)/$$item -name .svn`; \
+	    echo "OK"; \
+	  fi; \
+	done
 debug:
 	$(MAKE) all CFLAGS="@DEBUG@"