xdelta: quote xdelta.m4 warning

xdelta/.md5sum

@@ -1 +1,2 @@
 1b896c01ebf0e353b7e3c3071b05f496  xdelta-1.1.4.tar.gz
+9097c81e863fc1909e657b07d0bb9443  xdelta-1.1.4_m4.patch

xdelta/Pkgfile

@@ -6,12 +6,15 @@
 
 name=xdelta
 version=1.1.4
-release=1
-source=(http://xdelta.googlecode.com/files/xdelta-$version.tar.gz)
+release=2
+source=(http://xdelta.googlecode.com/files/xdelta-$version.tar.gz
+	xdelta-1.1.4_m4.patch)
 
 build() {
 	cd xdelta-$version
 
+	patch -p 1 -i $SRC/xdelta-1.1.4_m4.patch
+
 	./configure \
 		--prefix=/usr \
 		--disable-static

xdelta/xdelta-1.1.4_m4.patch

@@ -0,0 +1,12 @@
+diff -pruN xdelta-1.1.4.orig/xdelta.m4 xdelta-1.1.4/xdelta.m4
+--- xdelta-1.1.4.orig/xdelta.m4	2008-10-24 01:21:17.259349462 +1100
++++ xdelta-1.1.4/xdelta.m4	2008-10-24 01:23:04.925100371 +1100
+@@ -4,7 +4,7 @@
+ dnl AM_PATH_XDELTA([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
+ dnl Test for XDELTA, and define XDELTA_CFLAGS and XDELTA_LIBS, if "gmodule" or
+ dnl
+-AC_DEFUN(AM_PATH_XDELTA,
++AC_DEFUN([AM_PATH_XDELTA],
+ [dnl
+ dnl Get the cflags and libraries from the xdelta-config script
+ dnl