From 8567306be556c14b2b99098f9510f50d3322a842 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Tue, 17 Jun 2025 07:02:19 +0000
Subject: project: added the --m4-dir switch (install aux files to a custom
 location).

---
 project/config/cfgdefs.sh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'project/config/cfgdefs.sh')

diff --git a/project/config/cfgdefs.sh b/project/config/cfgdefs.sh
index 6510abd..20c89b1 100644
--- a/project/config/cfgdefs.sh
+++ b/project/config/cfgdefs.sh
@@ -28,6 +28,10 @@ _mb_quotes='\"'
 
 for arg ; do
 	case "$arg" in
+		--m4-dir=*)
+                        m4_dir=${arg#*=}
+			;;
+
 		--with-preferred-host-ar=*)
                         slbt_preferred_host_ar=${_mb_quotes}${arg#*=}${_mb_quotes}
 			;;
@@ -52,11 +56,20 @@ done
 
 cfgdefs_output_custom_defs()
 {
+	if [ -z "${m4_dir:-}" ]; then
+		m4_dir="${mb_datadir}/${mb_package}"
+	fi
+
 	if [ $mb_cfgtest_cfgtype = 'host' ]; then
 		cfgtest_cflags_append -DSLBT_PREFERRED_HOST_AR=${slbt_preferred_host_ar:-0}
 		cfgtest_cflags_append -DSLBT_PREFERRED_HOST_AS=${slbt_preferred_host_as:-0}
 		cfgtest_cflags_append -DSLBT_PREFERRED_HOST_NM=${slbt_preferred_host_nm:-0}
 		cfgtest_cflags_append -DSLBT_PREFERRED_HOST_RANLIB=${slbt_preferred_host_ranlib:-0}
+
+		cfgtest_newline
+		cfgtest_comment '# m4,aux'
+		mb_cfgtest_makevar='M4_DIR'
+		cfgtest_makevar_set "$m4_dir"
 	fi
 }
 
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