$NetBSD: patch-build__tools_mkpkgconfig,v 1.1.1.1 2015/12/05 23:29:09 jnemeth Exp $

--- build_tools/mkpkgconfig.orig	2015-10-09 21:48:48.000000000 +0000
+++ build_tools/mkpkgconfig
@@ -22,11 +22,14 @@ else
 fi
 
 ## Clean out CFLAGS for the spec file.
+## pkgsrc -- the regex below isn't sed compatible, so always use perl
+EXTREGEX="perl -pe"
 LOCAL_CFLAGS=`echo $CFLAGS | ${EXTREGEX} 's/-pipe\s*//g' | ${EXTREGEX} 's/-[Wmp]\S*\s*//g' | \
   ${EXTREGEX} 's/\s+-I(include|\.\.\/include)\s+/ /g' | \
   ${EXTREGEX} 's/-DINSTALL_PREFIX=\S* //g' | \
   ${EXTREGEX} 's/-DASTERISK_VERSION=\S* //g' | \
   ${EXTREGEX} 's/-DAST(ETCDIR|LIBDIR|VARLIBDIR|VARRUNDIR|SPOOLDIR|LOGDIR|CONFPATH|MODDIR|AGIDIR)=\S* //g' | \
+  ${EXTREGEX} "s;${WRKSRC};${PREFIX};g" | \
   ${EXTREGEX} 's/^\s|\s$//g'`
 
 cat <<EOF > "$PPATH/asterisk.pc"