From: H.J. Lu <hjl.tools@gmail.com>
Date: Fri, 22 Aug 2025 22:31:23 +0000 (-0700)
Subject: Undef __INT64_C/__UINT64_C for glibc build and test
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=dd7122c0578bec13f4204e6236c194e5a7f35801;p=thirdparty%2Fglibc.git

Undef __INT64_C/__UINT64_C for glibc build and test

Since clang 20 defines __INT64_C and __UINT64_C as built-in macros, undef
them for glibc build and test.  This fixes BZ #33311.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
---

diff --git a/include/stdint.h b/include/stdint.h
index 7f428741d7..8db6187c49 100644
--- a/include/stdint.h
+++ b/include/stdint.h
@@ -1 +1,6 @@
+#ifndef _STDINT_H
+/* NB: Clang 20 defines them as built-in macros.  */
+#undef __INT64_C
+#undef __UINT64_C
 #include <stdlib/stdint.h>
+#endif