contrib: zlib: fix OSX build

OSX libtool (in /usr/bin) is not the same thing than GNU libtool
No need to run RECONF since configure is not a GNU autoconf script

contrib/src/zlib/rules.mak

@@ -15,10 +15,10 @@ $(TARBALLS)/zlib-$(ZLIB_VERSION).tar.gz:
 zlib: zlib-$(ZLIB_VERSION).tar.gz .sum-zlib
 	$(UNPACK)
 	$(APPLY) $(SRC)/zlib/zlib-wince.patch
+	$(APPLY) $(SRC)/zlib/zlib-osx.patch
 	$(MOVE)
 
 .zlib: zlib
-	#$(RECONF)
 	cd $< && $(HOSTVARS) ./configure --prefix=$(PREFIX) --static
 	cd $< && $(MAKE) install
 	touch $@

contrib/src/zlib/zlib-osx.patch

+diff -ru zlib.orig/configure zlib/configure
+--- zlib.orig/configure	2012-04-30 23:41:03.155668067 -0400
++++ zlib/configure	2012-04-30 23:41:13.787667975 -0400
+@@ -206,7 +206,7 @@
+              SHAREDLIBV=libz.$VER$shared_ext
+              SHAREDLIBM=libz.$VER1$shared_ext
+              LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
+-             AR="libtool"
++             AR="/usr/bin/libtool"
+              ARFLAGS="-o" ;;
+   *)             LDSHARED=${LDSHARED-"$cc -shared"} ;;
+   esac