Patch for Hengband SVN r3405 to run in non-EUC-JP terminals (such as UTF-8) with curses (-mgcu) / 変愚蛮怒をUTF-8なターミナルで動作させるためのパッチです

hengband-utf8.patch

diff --git a/src/main-gcu.c b/src/main-gcu.c
index 0c7f244..069d434 100644
--- a/src/main-gcu.c
+++ b/src/main-gcu.c
@@ -158,6 +158,7 @@
 
 #include "angband.h"
 
+#include <iconv.h>
 
 #ifdef USE_GCU
 
@@ -189,6 +190,7 @@ struct term_data
 
 static term_data data[MAX_TERM_DATA];
 
+static iconv_t iconvd;
 
 /*
  * Hack -- try to guess which systems use what commands
@@ -1095,7 +1097,7 @@ static errr Term_text_gcu(int x, int y, int n, byte a, cptr s)
 
    int i;
 
-   char text[81];
+   char text[80 * 3 + 1]; // is enough for any coding?
 
 #ifdef USE_NCURSES_ACS
    /* do we have colors + 16 ? */
@@ -1107,8 +1109,19 @@ static errr Term_text_gcu(int x, int y, int n, byte a, cptr s)
    }
 #endif
 
-   /* Obtain a copy of the text */
-   for (i = 0; i < n; i++) text[i] = s[i];    text[n] = 0;
+   size_t inlen = n, outlen = sizeof text;
+   char *inbuf = s, *outbuf = text;
+
+   size_t res;
+   res = iconv(iconvd, 0, 0, 0, 0);
+   if(res == (size_t)-1) return (-1);
+   res = iconv(iconvd, &inbuf, &inlen, &outbuf, &outlen);
+   if(res == (size_t)-1) return (-1);
+   res = iconv(iconvd, 0, 0, &outbuf, &outlen);
+   if(res == (size_t)-1) return (-1);
+
+   if(outlen == 0) return (-1);
+   *outbuf = '\0';
 
    /* Move the cursor and dump the string */
    wmove(td->win, y, x);
@@ -1183,6 +1196,8 @@ static void hook_quit(cptr str)
 
        /* Exit curses */
        endwin();
+
+       iconv_close(iconvd);
 }
 
 
@@ -1207,6 +1222,8 @@ errr init_gcu(int argc, char *argv[])
 
 
    setlocale(LC_ALL, "");
+   iconvd = iconv_open("", "EUC-JP");
+   if(iconvd == (iconv_t)-1) return (-1);
 
 #ifdef USE_SOUND