[glib: 1/6] tests: Fix hard-coded install path in glib-mkenums test

[Emmanuele Bassi <ebassi src gnome org>]

commit 3f02660ea5e9305e3ca9814b43ca7831ec985af6
Author: Philip Withnall <withnall endlessm com>
Date:   Sat Jun 8 00:09:11 2019 +0100

    tests: Fix hard-coded install path in glib-mkenums test
    
    While this was useful for local testing while developing the test, it’s
    not widely applicable. Look the binary up in the current `${PATH}` if
    it’s not specified using `G_TEST_BUILDDIR`.
    
    This is needed to get the `mkenums.py` test working as an
    installed-test.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>

 gobject/tests/mkenums.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gobject/tests/mkenums.py b/gobject/tests/mkenums.py
index f2a1ad95c..9b4632497 100644
--- a/gobject/tests/mkenums.py
+++ b/gobject/tests/mkenums.py
@@ -22,6 +22,7 @@
 
 import collections
 import os
+import shutil
 import subprocess
 import tempfile
 import textwrap
@@ -57,7 +58,7 @@ class TestMkenums(unittest.TestCase):
                 os.path.join(os.environ['G_TEST_BUILDDIR'], '..',
                              'glib-mkenums')
         else:
-            self.__mkenums = os.path.join('/', 'usr', 'bin', 'glib-mkenums')
+            self.__mkenums = shutil.which('glib-mkenums')
         print('rspfile: {}, mkenums:'.format(self.rspfile), self.__mkenums)
 
     def tearDown(self):