[bug #57277] FAIL: test-canonicalize-lgpl with GCC 10

From: Bernhard Voelker <INVALID.NOREPLY@gnu.org>
To: Martin Liška <mliska@suse.cz>,
	Bernhard Voelker <mail@bernhard-voelker.de>,
	bug-gnulib@gnu.org, bug-findutils@gnu.org
Subject: [bug #57277] FAIL: test-canonicalize-lgpl with GCC 10
Date: Wed, 20 Nov 2019 18:49:55 -0500 (EST)	[thread overview]
Message-ID: <20191121-004954.sv89737.17322@savannah.gnu.org> (raw)
In-Reply-To: <20191120-145521.sv108124.86413@savannah.gnu.org>

Follow-up Comment #1, bug #57277 (project findutils):

First of all, the fix for this should go into gnulib --> adding their ML.

Then, this test actually wants to verify the behavior of that
function when called with a NULL value (it should return NULL
and set errno to EINVAL).
Therefore, the test needs to suppress that specific sanitizer
error. I don't have a GCC 10, so does something like the
following work?


a/tests/test-canonicalize-lgpl.c b/tests/test-canonicalize-lgpl.c
index 4ce06e46c..4e7d47c57 100644

--- a/tests/test-canonicalize-lgpl.c
+++ b/tests/test-canonicalize-lgpl.c
@@ -39,6 +39,9 @@ SIGNATURE_CHECK (canonicalize_file_name, char *, (const char
*));
 
 #define BASE "t-can-lgpl.tmp"
 
+/* Suppress -fsanitize=null error - seen on GCC 10 - for this test.  */
+extern char *canonicalize_file_name (const char *)
__attribute__((no_sanitize("null")));
+
 int
 main (void)
 {


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