diff -r 000000000000 -r 6474c204b198 gfx/harfbuzz/src/check-c-linkage-decls.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/harfbuzz/src/check-c-linkage-decls.sh	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+LC_ALL=C
+export LC_ALL
+
+test -z "$srcdir" && srcdir=.
+stat=0
+
+test "x$HBHEADERS" = x && HBHEADERS=`cd "$srcdir"; find . -maxdepth 1 -name 'hb*.h'`
+test "x$HBSOURCES" = x && HBSOURCES=`cd "$srcdir"; find . -maxdepth 1 -name 'hb*.h'`
+
+
+for x in $HBHEADERS; do
+	test -f $srcdir/$x && x=$srcdir/$x
+	if ! grep -q HB_BEGIN_DECLS "$x" || ! grep -q HB_END_DECLS "$x"; then
+		echo "Ouch, file $x does not have HB_BEGIN_DECLS / HB_END_DECLS, but it should"
+		stat=1
+	fi
+done
+for x in $HBSOURCES; do
+	test -f $srcdir/$x && x=$srcdir/$x
+	if grep -q HB_BEGIN_DECLS "$x" || grep -q HB_END_DECLS "$x"; then
+		echo "Ouch, file $x has HB_BEGIN_DECLS / HB_END_DECLS, but it shouldn't"
+		stat=1
+	fi
+done
+
+exit $stat