almost support for multiple windows on the same graph

diff --git a/lib/common/emit.c b/lib/common/emit.c
index 6dda95ea9b1db9ece10fd666897cf18c44ad29e9..bc443da6c2ad968f22fc0e05a3c919c1634d4d0e 100644 (file)
--- a/lib/common/emit.c
+++ b/lib/common/emit.c
@@ -1530,7 +1530,7 @@ static FILE *file_select(char *str)
 void emit_jobs (GVC_t * gvc, graph_t * g)
 {
     gvrender_job_t *job;
-    char *prev_langname = NULL;
+    char *prev_langname = "";
 
     for (job = gvrender_first_job(gvc); job; job = gvrender_next_job(gvc)) {
         if (!job->output_file) {        /* if not yet opened */
@@ -1540,10 +1540,10 @@ void emit_jobs (GVC_t * gvc, graph_t * g)
                 job->output_file = file_select(job->output_filename);
             }
         }
-       if (job->output_langname != prev_langname) {
+        job->output_lang = gvrender_select(gvc, job->output_langname);
+        assert(job->output_lang != NO_SUPPORT); /* should have been verified already */
+       if (strcmp(job->output_langname,prev_langname) != 0) {
            prev_langname = job->output_langname;
-            job->output_lang = gvrender_select(gvc, job->output_langname);
-            assert(job->output_lang != NO_SUPPORT); /* should have been verified already */
            gvrender_initialize(gvc);
        }
 
@@ -1552,7 +1552,7 @@ void emit_jobs (GVC_t * gvc, graph_t * g)
 
         emit_job(gvc, g);
 
-       if (!job->next || job->next->output_langname != prev_langname)
+       if (!job->next || strcmp(job->next->output_langname,prev_langname) != 0)
            gvrender_finalize(gvc);
     }
 }