diff --git a/lang/gcc15-devel/files/patch-include_libiberty.h b/lang/gcc15-devel/files/patch-include_libiberty.h
new file mode 100644
index 000000000000..c082051d9f88
--- /dev/null
+++ b/lang/gcc15-devel/files/patch-include_libiberty.h
@@ -0,0 +1,11 @@
+--- include/libiberty.h.orig	2025-08-08 06:51:44 UTC
++++ include/libiberty.h
+@@ -221,7 +221,7 @@ extern int mkstemps(char *, int);
+ 
+ /* Make memrchr available on systems that do not have it.  */
+ #if !defined (__GNU_LIBRARY__ ) && !defined (__linux__) && \
+-    !defined (HAVE_MEMRCHR)
++    !defined (__FreeBSD__) && !defined (HAVE_MEMRCHR)
+ extern void *memrchr(const void *, int, size_t);
+ #endif
+