contrib: libmad: do not mess with GCC (antiquated) optimization flags

contrib/src/mad/mad-noopt.patch

+diff -Nru libmad.orig//configure.ac libmad/configure.ac
+--- libmad.orig//configure.ac	2011-08-02 12:39:34.000000000 +0300
++++ libmad/configure.ac	2011-08-02 12:52:11.000000000 +0300
+@@ -122,7 +122,7 @@
+     esac
+ done
+ 
+-if test "$GCC" = yes
++if false
+ then
+     if test -z "$arch"
+     then

contrib/src/mad/rules.mak

@@ -21,9 +21,12 @@ ifdef HAVE_MACOSX
 		-e 's%-dynamiclib%-dynamiclib -arch $(ARCH)%' \
 		-i.orig configure
 endif
+	$(APPLY) $(SRC)/mad/mad-noopt.patch
 	$(MOVE)
 
 .mad: libmad
+	touch libmad/NEWS libmad/AUTHORS libmad/ChangeLog
+	$(RECONF)
 	cd $< && $(HOSTVARS) CFLAGS="$(CFLAGS) -O3 $(NOTHUMB)" ./configure $(HOSTCONF)
 	cd $< && $(MAKE) install
 	touch $@