Enable fortify source

Enable fortify source on the GNU C Library, which got included in the
last sync.

glibc.spec

@@ -1207,7 +1207,8 @@ build()
 %endif
 		--disable-crypt \
 	        --disable-build-nscd \
-	        --disable-nscd ||
+	        --disable-nscd \
+		--enable-fortify-source ||
 		{ cat config.log; false; }
 
 	# We enable DT_GNU_HASH and DT_HASH for ld.so and DSOs to improve
@@ -2213,6 +2214,7 @@ update_gconv_modules_cache ()
 
 %changelog
 * Thu Jul 06 2023 Frédéric Bérat <fberat@redhat.com> - 2.37.9000-16
+- Add "--enable-fortify-source" option to configure
 - Auto-sync with upstream branch master,
   commit 5324d258427fd11ca0f4f595c94016e568b26d6b.
 - fileops: Don't process ,ccs= as individual mode flags (BZ#18906)