From aa644169c2b85ff530d497533297cd8b206a61d9 Mon Sep 17 00:00:00 2001
From: "kr.angelov" <kr.angelov@gmail.com>
Date: Thu, 30 May 2013 20:20:02 +0000
Subject: [PATCH] bugfix for the grammar printer in the C runtime

---
 src/runtime/c/pgf/printer.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/runtime/c/pgf/printer.c b/src/runtime/c/pgf/printer.c
index 1194ea85f..4b91a011c 100644
--- a/src/runtime/c/pgf/printer.c
+++ b/src/runtime/c/pgf/printer.c
@@ -176,9 +176,15 @@ pgf_print_cncfun(PgfCncFun *cncfun, PgfSequences *sequences,
 		}
 	}
 	
-	gu_puts(") [", wtr, err);
-	gu_string_write(cncfun->absfun->name, wtr, err);
-	gu_puts("]\n", wtr, err);
+	gu_puts(")", wtr, err);
+	
+	if (cncfun->absfun != NULL) {
+		gu_puts(" [", wtr, err);
+		gu_string_write(cncfun->absfun->name, wtr, err);
+		gu_puts("]", wtr, err);
+	}
+	
+	gu_puts("\n", wtr, err);
 }
 
 static void