chroot-diffutils: make this build with glibc-2.17.

srcpkgs/chroot-diffutils/template

@@ -2,13 +2,13 @@
 pkgname=chroot-diffutils
 version=3.2
 wrksrc="diffutils-${version}"
-distfiles="${GNU_SITE}/diffutils/diffutils-$version.tar.xz"
 build_style=gnu-configure
 revision=1
 short_desc="The GNU diff utilities -- for xbps-src use"
 maintainer="Juan RP <xtraeme@gmail.com>"
 homepage="http://www.gnu.org/software/diffutils"
 license="GPL-3"
+distfiles="${GNU_SITE}/diffutils/diffutils-$version.tar.xz"
 checksum=ab4fb75d0ef35f3c8c9a148cd3526ba6f4db71d10467a041eb45006436079149
 long_desc="
  Diffutils contains the GNU diff, diff3, sdiff, and cmp utilities. Their
@@ -22,6 +22,10 @@ bootstrap=yes
 conflicts="diffutils>=0"
 provides="diffutils-${version}"
 
+pre_configure() {
+	sed -i -e '/gets is a/d' lib/stdio.in.h
+}
+
 post_install() {
 	rm -rf ${DESTDIR}/usr/share
 }