chroot-grep: disable perl regexps.

srcpkgs/chroot-grep/template

@@ -3,11 +3,12 @@
 . ${XBPS_SRCPKGDIR}/grep/template
 
 # Reset some vars
-unset build_depends
+unset build_depends revision
 
 base_chroot=yes
 pkgname=chroot-grep
 wrksrc=grep-${version}
+configure_args="${configure_args} --disable-perl-regexp"
 configure_args="${configure_args} --disable-nls ac_cv_path_GREP=grep"
 short_desc="The GNU grep utility - for use with xbps-src"
 long_desc="${long_desc}