Build fix (untested by me): Define _GNU_SOURCE on Linux. >From Aleksey Cheusov in PR 41219.diff -r1.13 -r1.14 pkgsrc/audio/jack/Makefile
(wiz)
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.13 2008/11/16 11:55:19 bjs Exp $
+# $NetBSD: Makefile,v 1.14 2009/04/15 12:27:16 wiz Exp $
#
DISTNAME= jack-audio-connection-kit-${JACK_VERSION}
@@ -35,6 +35,7 @@
CONFIGURE_ARGS+= --enable-timestamps
CFLAGS.NetBSD+= -D_NETBSD_SOURCE
+CFLAGS.Linux+= -D_GNU_SOURCE
CONFIGURE_ENV+= ac_cv_header_readline_chardefs_h=yes