#!/bin/sh

LC_ALL=C

export LC_ALL

test -z "$srcdir" && srcdir=.

stat=0

if which nm 2>/dev/null >/dev/null; then

	:

else

	echo "check-symbols.sh: 'nm' not found; skipping test"

	exit 77

fi

echo "Checking that we are not exposing internal symbols"

tested=false

for suffix in so dylib; do

	so=.libs/libharfbuzz.$suffix

	if ! test -f "$so"; then continue; fi

	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\>\| ___gcov_flush\>\| llvm_\| _llvm_' | cut -d' ' -f3`"

	prefix=`basename "$so" | sed 's/libharfbuzz/hb/; s/-/_/g; s/[.].*//'`

	# On mac, C symbols are prefixed with _

	if test $suffix = dylib; then prefix="_$prefix"; fi

	echo "Processing $so"

	if echo "$EXPORTED_SYMBOLS" | grep -v "^${prefix}_"; then

		echo "Ouch, internal symbols exposed"

		stat=1

	fi

	tested=true

done

if ! $tested; then

	echo "check-symbols.sh: no shared library found; skipping test"

	exit 77

fi

exit $stat