#!/usr/bin/env python3

import sys, os, shutil, subprocess

os.chdir (os.environ.get ('srcdir', os.path.dirname (__file__)))

libs = os.environ.get ('libs', '.libs')

ldd = shutil.which ('ldd')
if ldd:
	ldd = [ldd]
else:
	ldd = shutil.which ('otool')
	if ldd:
		ldd = [ldd, '-L'] # otool -L
	else:
		print ('check-libstdc++.py: \'ldd\' not found; skipping test')
		sys.exit (77)

stat = 0
tested = False

# harfbuzz-icu links to libstdc++ because icu does.
for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-gobject']:
	for suffix in ['so', 'dylib']:
		so = os.path.join (libs, 'lib%s.%s' % (soname, suffix))
		if not os.path.exists (so): continue

		print ('Checking that we are not linking to libstdc++ or libc++ in %s' % so)
		ldd_result = subprocess.check_output (ldd + [so])
		if (b'libstdc++' in ldd_result) or (b'libc++' in ldd_result):
			print ('Ouch, %s is linked to libstdc++ or libc++' % so)
			stat = 1

		tested = True

if not tested:
	print ('check-libstdc++.py: libharfbuzz shared library not found; skipping test')
	sys.exit (77)

sys.exit (stat)