Fix the AC_PATH_PROG default when vi isn't found during build.

[mmh] / sbr / context_read.c

diff --git a/sbr/context_read.c b/sbr/context_read.c
index 3084ff5..6a1eea1 100644 (file)
--- a/sbr/context_read.c
+++ b/sbr/context_read.c
@@ -120,6 +120,15 @@ context_read (void)
     if ((cp = getenv ("MHCONTEXT")) == (char *)0 || *cp == '\0')
        cp = context;
 
+    /* context is NULL if context_foil() was called to disable use of context
+     * We also support users setting explicitly setting MHCONTEXT to /dev/null.
+     * (if this wasn't specialcased then the locking would be liable to fail)
+     */
+    if (!cp || (strcmp(cp,"/dev/null") == 0)) {
+       ctxpath = NULL;
+       return;
+    }
+    
     ctxpath = getcpy (m_maildir (cp));
 
     if ((ib = lkfopen (ctxpath, "r"))) {