From e7997244aff4cd23336af86d6f3c98fe441b38da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Chmielowski?= <pawel@process-one.net>
Date: Mon, 28 Apr 2025 13:58:40 +0200
Subject: [PATCH] Allow to specify minimal erlang version using
 --with-min-erlang in configure

---
 configure.ac | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 163f027aa..12e3ae463 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,16 @@
 
 AC_PREREQ(2.59)
 AC_INIT(ejabberd, m4_esyscmd([echo `git describe --tags 2>/dev/null || echo 25.04` | sed 's/-g.*//;s/-/./' | tr -d '\012']), [ejabberd@process-one.net], [ejabberd])
-REQUIRE_ERLANG_MIN="13.0 (Erlang/OTP 25.0)"
+
+AC_ARG_WITH(min-erlang,
+	AS_HELP_STRING([--with-min-erlang=version],[set minimal required erlang version, default to OTP25]),
+[if test "X$withval" = "X"; then
+    REQUIRE_ERLANG_MIN="13.0 (Erlang/OTP 25.0)"
+else
+    REQUIRE_ERLANG_MIN="$withval"
+fi
+], [REQUIRE_ERLANG_MIN="13.0 (Erlang/OTP 25.0)"])
+
 REQUIRE_ERLANG_MAX="100.0.0 (No Max)"
 
 AC_CONFIG_MACRO_DIR([m4])