Special-case an MHCONTEXT of "/dev/null" and don't try to lock it -- some

[mmh] / sbr / context_read.c

diff --git a/sbr/context_read.c b/sbr/context_read.c
index fcc12f9..6a1eea1 100644 (file)
--- a/sbr/context_read.c
+++ b/sbr/context_read.c
@@ -120,8 +120,11 @@ 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 */
-    if (!cp) {
+    /* 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;
     }