diff -up texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser.c.spotfix texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser.c
--- texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser.c.spotfix	2023-01-30 13:53:54.728596407 -0500
+++ texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser.c	2023-01-30 13:54:03.585695070 -0500
@@ -95,6 +95,8 @@
 #       endif
 #   endif
 
+#define __STDC_WANT_LIB_EXT2__ 1
+
 #include <stdlib.h>
 #include <stdarg.h>
 #include <stdio.h>
diff -up texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser_utils.c.spotfix texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser_utils.c
--- texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser_utils.c.spotfix	2023-01-30 13:56:35.358385753 -0500
+++ texlive-base-20220321/source/texk/web2c/synctexdir/synctex_parser_utils.c	2023-01-30 13:57:11.206785083 -0500
@@ -40,6 +40,8 @@
 
 /*  In this file, we find all the functions that may depend on the operating system. */
 
+#define __STDC_WANT_LIB_EXT2__ 1
+
 #include <synctex_parser_utils.h>
 #include <stdlib.h>
 #include <string.h>