commit d04da7cb4afe77de05e4e08e7e86e504be6759e0
author Bram Moolenaar <Bram@vim.org> Sun Oct 14 03:41:59 2012 +0200
committer Bram Moolenaar <Bram@vim.org> Sun Oct 14 03:41:59 2012 +0200
tree ef6ab3ea578a21cf2b55a630ab6092ad7cd8656b
parent 7bc4f93c07a1e8b17e7d91f814b9801bd611d569

updated for version 7.3.689
Problem:    MzScheme and Lua may use a NULL string.
Solution:   Use an empty string instead of NULL. (Yukihiro Nakadaira)

src/if_mzsch.c

diff --git a/src/if_mzsch.c b/src/if_mzsch.c
index 86e96bd..d6ee4b9 100644
--- a/src/if_mzsch.c
+++ b/src/if_mzsch.c
@@ -2649,7 +2649,8 @@
 	new_value = FALSE;
     else if (vim_value->v_type == VAR_STRING)
     {
-	result = scheme_make_string((char *)vim_value->vval.v_string);
+	result = scheme_make_string(vim_value->vval.v_string == NULL
+				    ? "" : (char *)vim_value->vval.v_string);
 	MZ_GC_CHECK();
     }
     else if (vim_value->v_type == VAR_NUMBER)