Generate header as foo.hx so that we don't overwrite it.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@25259 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/asn1/gen.c

@@ -83,7 +83,7 @@ init_generate (const char *filename, const char *base)
 	if (headerbase == NULL)
 	    errx(1, "strdup");
     }
-    asprintf(&header, "%s.h", headerbase);
+    asprintf(&header, "%s.hx", headerbase);
     if (header == NULL)
 	errx(1, "malloc");
     headerfile = fopen (header, "w");