1#!/bin/sh
2
3LC_ALL=C
4export LC_ALL
5
6test -z "$srcdir" && srcdir=.
7stat=0
8
9
10if which nm 2>/dev/null >/dev/null; then
11	:
12else
13	echo "check-symbols.sh: 'nm' not found; skipping test"
14	exit 77
15fi
16
17echo "Checking that we are not exposing internal symbols"
18tested=false
19for suffix in so dylib; do
20	so=.libs/libharfbuzz.$suffix
21	if ! test -f "$so"; then continue; fi
22
23	EXPORTED_SYMBOLS="`nm "$so" | grep ' [BCDGINRSTVW] ' | grep -v ' _fini\>\| _init\>\| _fdata\>\| _ftext\>\| _fbss\>\| __bss_start\>\| __bss_start__\>\| __bss_end__\>\| _edata\>\| _end\>\| _bss_end__\>\| __end__\>\| __gcov_flush\>\| llvm_' | cut -d' ' -f3`"
24
25	prefix=`basename "$so" | sed 's/libharfbuzz/hb/; s/-/_/g; s/[.].*//'`
26
27	# On mac, C symbols are prefixed with _
28	if test $suffix = dylib; then prefix="_$prefix"; fi
29
30	echo "Processing $so"
31	if echo "$EXPORTED_SYMBOLS" | grep -v "^${prefix}_"; then
32		echo "Ouch, internal symbols exposed"
33		stat=1
34	fi
35
36	tested=true
37done
38if ! $tested; then
39	echo "check-symbols.sh: no shared library found; skipping test"
40	exit 77
41fi
42
43exit $stat
44