bpo-40112: distutils test_search_cpp: Fix logic to determine if C compiler is xlc...

(cherry picked from commit 76db37b1d37a9daadd9e5b320f2d5a53cd1352ec)

Co-authored-by: Michael Felt <aixtools@users.noreply.github.com>

diff --git a/Lib/distutils/tests/test_config_cmd.py b/Lib/distutils/tests/test_config_cmd.py
index b735fd334d87805d0693e71885e18f985311b069..8bd2c94237846acb1878d617a93b5d3fa92565d1 100644 (file)
--- a/Lib/distutils/tests/test_config_cmd.py
+++ b/Lib/distutils/tests/test_config_cmd.py
@@ -47,8 +47,7 @@ class ConfigTestCase(support.LoggingSilencer,
         cmd = config(dist)
         cmd._check_compiler()
         compiler = cmd.compiler
-        is_xlc = shutil.which(compiler.preprocessor[0]).startswith("/usr/vac")
-        if is_xlc:
+        if sys.platform[:3] == "aix" and "xlc" in compiler.preprocessor[0].lower():
             self.skipTest('xlc: The -E option overrides the -P, -o, and -qsyntaxonly options')
 
         # simple pattern searches