japanese/canna: prepare for upcoming libc bump

Don't assume stdin is a compile-time constant. Initialize in1 and in2 at
the top of main instead.

ok espie

japanese/canna/patches/patch-dic_ideo_pubdic_pod_c

@@ -1,8 +1,22 @@
---- dic/ideo/pubdic/pod.c.orig	Fri Aug 29 16:57:13 2008
-+++ dic/ideo/pubdic/pod.c	Fri Aug 29 16:57:24 2008
+Index: dic/ideo/pubdic/pod.c
+--- dic/ideo/pubdic/pod.c.orig
++++ dic/ideo/pubdic/pod.c
 @@ -26,4 +26,5 @@ static char rcsid[] = "$Id: pod.c,v 1.41 1994/05/31 11
  
  #include <stdio.h>
 +#include <stdlib.h>
  
  #define bzero(a, c) memset(a, 0, c)
+@@ -52,5 +53,5 @@ static int list_kinds;
+ static int copy_frequency, extract_kana = 0;
+ static long specific_kind;
+-static FILE *in1 = stdin, *in2 = stdin;
++static FILE *in1, *in2;
+ static char *common_out, *old_out, *new_out, *hinshi_table, *bunrui;
+ static char *description_table;
+@@ -1378,4 +1379,5 @@ char *argv[];
+ #endif
+ 
++  in1 = in2 = stdin;
+   (void)internkind(kihonh); /* 基本辞書用。1L として登録 */
+   parseargs(argc, argv);