[mc-devel] [PATCH v2 3/3] Ticket #4597: export MC_VERSION to subshell

[Johannes Altmanninger]

This lets fish know if we are running 4.8.33 or greater which means
fish can use the kitty keyboard protocol without breaking mc.

I have a slight preference for doing this instead of parsing
"mc --version" because these version checks are currently hardcoded in
fish's early startup; if we wanted to run external programs we should
move that to a shell function but I don't see a strong reason to do so.

Additionally, this approach does a better job of actually matching the
running mc binary (I don't think there is a portable way of getting
the "parent process executable path").

Anyway, no strong opinion; either way works for me.
---
 src/subshell/common.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/subshell/common.c b/src/subshell/common.c
index 85eef1181..739954bb1 100644
--- a/src/subshell/common.c
+++ b/src/subshell/common.c
@@ -105,6 +105,7 @@
 #include "lib/strutil.h"
 #include "lib/mcconfig.h"
 #include "lib/util.h"
+#include "mc-version.h"
 #include "lib/widget.h"
 
 #include "src/filemanager/layout.h"     /* setup_cmdline() */
@@ -316,6 +317,7 @@ init_subshell_child (const char *pty_name)
         g_snprintf (sid_str, sizeof (sid_str), "MC_SID=%ld", (long) mc_sid);
         putenv (g_strdup (sid_str));
     }
+    putenv ((char *)"MC_VERSION=" MC_CURRENT_VERSION);
 
     switch (mc_global.shell->type)
     {
-- 
2.47.0.rc0