From: Paul Eggert <eggert@cs.ucla.edu>
Date: Fri, 8 May 2026 01:51:15 +0000 (-0700)
Subject: Pacify -Wuseless cast with a pragma
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba6c8ac33bbb35346b9c828a8e53da94730eff37;p=thirdparty%2Fgnulib.git

Pacify -Wuseless cast with a pragma

* lib/intprops-internal.h: Ignore -Wuseless-cast.
* lib/vasnprintf.c: Ignore -Wuseless-cast.
---

diff --git a/ChangeLog b/ChangeLog
index 3627599299..94845b5ede 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2026-05-07  Paul Eggert  <eggert@cs.ucla.edu>
 
+	Pacify -Wuseless cast with a pragma
+	* lib/intprops-internal.h: Ignore -Wuseless-cast.
+	* lib/vasnprintf.c: Ignore -Wuseless-cast.
+
 	Pacify GCC 16 -Wuseless-cast by omitting casts
 	* lib/obstack.in.h (obstack_free): Omit unnecessary cast.
 	* lib/printf-args.c (PRINTF_FETCHARGS): Omit unnecessary casts.
diff --git a/lib/intprops-internal.h b/lib/intprops-internal.h
index 0df385b9bf..6a72c24bca 100644
--- a/lib/intprops-internal.h
+++ b/lib/intprops-internal.h
@@ -25,6 +25,11 @@
 # pragma GCC diagnostic ignored "-Wtype-limits"
 #endif
 
+/* This file uses many casts that might provoke -Wuseless-cast.  */
+#if 16 <= __GNUC__
+# pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif
+
 /* Return a value with the common real type of E and V and the value of V.
    Do not evaluate E.  */
 #define _GL_INT_CONVERT(e, v) ((1 ? 0 : (e)) + (v))
diff --git a/lib/vasnprintf.c b/lib/vasnprintf.c
index b7c1cfc880..3162fd0b8a 100644
--- a/lib/vasnprintf.c
+++ b/lib/vasnprintf.c
@@ -69,6 +69,11 @@
 # pragma GCC diagnostic ignored "-Wanalyzer-null-argument"
 #endif
 
+/* This code has a lot of parameterized pointer casts that may be no-ops.  */
+#if _GL_GNUC_PREREQ (16, 0) || 11 <= __clang_major__
+# pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif
+
 #include <alloca.h>
 
 /* Specification.  */