From 24ae2474ba22315acf42770df42fa70e9fc905e4 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sun, 26 Sep 2021 13:10:40 -0400
Subject: m4/ax_prepend_flag.m4: New file

Now needed for AX_CFLAGS_WARN_ALL().

Fixes:

    configure.ac:55: error: macro AX_PREPEND_FLAG is not defined; is a m4 file missing?
    m4/ax_require_defined.m4:35: AX_REQUIRE_DEFINED is expanded from...
    m4/ax_cflags_warn_all.m4:84: AX_FLAGS_WARN_ALL is expanded from...
    m4/ax_cflags_warn_all.m4:142: AX_CFLAGS_WARN_ALL is expanded from...
    configure.ac:55: the top level
---
(limited to 'src/tk')

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