Fix a proble building the libiberty library with gcc-12.
PR 28779
* regex.c: Suppress -Wuse-after-free.
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 04c9e90..40611e5 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2022-01-15 Martin Sebor <msebor@redhat.com>
+
+ * regex.c: Suppress -Wuse-after-free.
+
2022-01-22 Nick Clifton <nickc@redhat.com>
* 2.38 release branch created.
diff --git a/libiberty/regex.c b/libiberty/regex.c
index cc5a460..84af527 100644
--- a/libiberty/regex.c
+++ b/libiberty/regex.c
@@ -30,6 +30,10 @@
#pragma alloca
#endif
+#if __GNUC__ >= 12
+# pragma GCC diagnostic ignored "-Wuse-after-free"
+#endif
+
#undef _GNU_SOURCE
#define _GNU_SOURCE
