#! /bin/sh

ALLOWED_SYMBOLS="\(g_module_check_init\|theme_create_rc_style\|theme_exit\|theme_init\)"

# exit with status 77 if nm does not exist
which nm >/dev/null || exit 77

ENGINE="`basename $0 | cut -d '_' -f 2`"
ENGINE_FILE="engines/lib$ENGINE.so"

nm -gD --defined-only $ENGINE_FILE | cut -d ' ' -f 2,3 | cut -d ' ' -f 2 | grep -v '^_' | grep -v "$ALLOWED_SYMBOLS" >symbols/$ENGINE

if [ -s symbols/$ENGINE ]; then
	exit 1;
else
	if [ -f symbols/$ENGINE ]; then
		# No point in keeping an empty file around
		rm symbols/$ENGINE
	else
		# Something wen't wrong, there is no file?!?
		# This should never happen ...
		exit 1
	fi
fi