From 81efa83cebc677b2d794eebc3a3b777b90559277 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Jun 13 2021 16:06:59 +0000
Subject: build system: core: added a modern framework using for the m4 macro language.


---

diff --git a/sofort/core/modern.m4 b/sofort/core/modern.m4
new file mode 100644
index 0000000..3e24501
--- /dev/null
+++ b/sofort/core/modern.m4
@@ -0,0 +1,82 @@
+dnl modern.m4: a modern and simple framework for using the m4 macro language
+dnl
+dnl This file is covered by COPYING.SOFORT.
+dnl
+dnl 1) make all standard m4 builtins m4_ prefixed.
+dnl 2) set the left-bracket and right-bracket symbols the begin-quote and end-quote strings.
+dnl 3) make a single underscore symbol the equivalent of the standard dnl builtin.
+dnl
+divert(-1)
+
+define(m4_changecom,defn(`changecom'))
+define(m4_changequote,defn(`changequote'))
+define(m4_decr,defn(`decr'))
+define(m4_define,defn(`define'))
+define(m4_defn,defn(`defn'))
+define(m4_divert,defn(`divert'))
+define(m4_divnum,defn(`divnum'))
+define(m4_dnl,defn(`dnl'))
+define(m4_dumpdef,defn(`dumpdef'))
+define(m4_errprint,defn(`errprint'))
+define(m4_eval,defn(`eval'))
+define(m4_ifdef,defn(`ifdef'))
+define(m4_ifelse,defn(`ifelse'))
+define(m4_include,defn(`include'))
+define(m4_incr,defn(`incr'))
+define(m4_index,defn(`index'))
+define(m4_len,defn(`len'))
+define(m4_m4exit,defn(`m4exit'))
+define(m4_m4wrap,defn(`m4wrap'))
+define(m4_maketemp,defn(`maketemp'))
+define(m4_mkstemp,defn(`mkstemp'))
+define(m4_popdef,defn(`popdef'))
+define(m4_pushdef,defn(`pushdef'))
+define(m4_shift,defn(`shift'))
+define(m4_sinclude,defn(`sinclude'))
+define(m4_substr,defn(`substr'))
+define(m4_syscmd,defn(`syscmd'))
+define(m4_sysval,defn(`sysval'))
+define(m4_traceoff,defn(`traceoff'))
+define(m4_traceon,defn(`traceon'))
+define(m4_translit,defn(`translit'))
+define(m4_undefine,defn(`undefine'))
+define(m4_undivert,defn(`undivert'))
+
+m4_changequote([,])
+m4_define(_,defn([m4_dnl]))
+
+m4_undefine([changecom])
+m4_undefine([changequote])
+m4_undefine([decr])
+m4_undefine([define])
+m4_undefine([defn])
+m4_undefine([divert])
+m4_undefine([divnum])
+m4_undefine([dnl])
+m4_undefine([dumpdef])
+m4_undefine([errprint])
+m4_undefine([eval])
+m4_undefine([ifdef])
+m4_undefine([ifelse])
+m4_undefine([include])
+m4_undefine([incr])
+m4_undefine([index])
+m4_undefine([len])
+m4_undefine([m4exit])
+m4_undefine([m4wrap])
+m4_undefine([maketemp])
+m4_undefine([mkstemp])
+m4_undefine([popdef])
+m4_undefine([pushdef])
+m4_undefine([shift])
+m4_undefine([sinclude])
+m4_undefine([substr])
+m4_undefine([syscmd])
+m4_undefine([sysval])
+m4_undefine([traceoff])
+m4_undefine([traceon])
+m4_undefine([translit])
+m4_undefine([undefine])
+m4_undefine([undivert])
+
+m4_divert(0)_