client.c:

  Bug #3990  	`--with-charset' ./configure's switch doesn'taffect mysql client library.

sql-common/client.c

@@ -1835,15 +1835,19 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
   }
 
   /* Set character set */
-  if (mysql->options.charset_name)
+  if (!mysql->options.charset_name &&
+      !(mysql->options.charset_name= 
+       my_strdup(MYSQL_DEFAULT_CHARSET_NAME,MYF(MY_WME))))
+    goto error;
+  
   {
     const char *save= charsets_dir;
     if (mysql->options.charset_dir)
       charsets_dir=mysql->options.charset_dir;
     mysql->charset=get_charset_by_csname(mysql->options.charset_name,
-					 MY_CS_PRIMARY,
-					 MYF(MY_WME));
+                                         MY_CS_PRIMARY, MYF(MY_WME));
     charsets_dir= save;
+  }
   
   if (!mysql->charset)
   {
@@ -1865,11 +1869,6 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
     }
     goto error;
   }
-  }
-  else
-  {
-    mysql->charset= default_charset_info;
-  }
 
 
   /* Save connection information */