From e6ce0cc145d5dd3c9d60c8ad082e96f366ba9842 Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Sat, 26 Oct 2019 08:54:18 +0200
Subject: [PATCH] mes: = 0

---
 src/mes.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/mes.c b/src/mes.c
index bea13b90..afc94b29 100644
--- a/src/mes.c
+++ b/src/mes.c
@@ -383,11 +383,11 @@ open_boot ()
       eputs (MES_PKGDATADIR);
       eputs ("\n");
     }
-  if (getenv ("MES_BOOT"))
+  if (getenv ("MES_BOOT") != 0)
     strcpy (boot, getenv ("MES_BOOT"));
   else
     strcpy (boot, "boot-0.scm");
-  if (getenv ("MES_PREFIX"))
+  if (getenv ("MES_PREFIX") != 0)
     {
       strcpy (g_datadir, getenv ("MES_PREFIX"));
       strcpy (g_datadir + strlen (g_datadir), "/mes");
@@ -413,7 +413,7 @@ open_boot ()
   if (__stdin < 0)
     {
       g_datadir[0] = 0;
-      if (getenv ("srcdest"))
+      if (getenv ("srcdest") != 0)
         strcpy (g_datadir, getenv ("srcdest"));
       strcpy (g_datadir + strlen (g_datadir), "mes");
       strcpy (file_name, g_datadir);