Fixed that one can always get a name for a compiled characterset

Docs/manual.texi:
  Added section "Problems with character sets"
acinclude.m4:
  Fixed typos
include/m_ctype.h:
  Made some declarations global
sql/gen_lex_hash.cc:
  Smaller array

Docs/manual.texi

@@ -19777,6 +19777,10 @@ joins that don't use keys properly.
 @item
 If @code{Threads_created} is big, you may want to increase the
 @code{thread_cache_size} variable.
+@item
+If @code{Created_tmp_disk_tables} is big, you may want to increase the
+@code{tmp_table_size} variable to get the temporary tables memory based
+instead of disk based.
 @end itemize
 
 
@@ -20411,6 +20415,7 @@ Create Table: CREATE TABLE t (
 * Character arrays::            The character definition arrays
 * String collating::            String Collating Support
 * Multi-byte characters::       Multi-byte Character Support
+* Problems with character sets::  
 @end menu
 
 
@@ -20744,7 +20749,7 @@ the maximum ratio the strings may grow during @code{my_strxfrm_MYSET} (it
 must be a positive integer).
 
 
-@node Multi-byte characters,  , String collating, Localization
+@node Multi-byte characters, Problems with character sets, String collating, Localization
 @subsection Multi-byte Character Support
 
 @cindex characters, multi-byte
@@ -20763,6 +20768,41 @@ You must specify the @code{mbmaxlen_MYSET=N} value in the special
 comment at the top of the source file.  @code{N} should be set to the
 size in bytes of the largest character in the set.
 
+@node Problems with character sets,  , Multi-byte characters, Localization
+@subsection Problems With Character Sets
+
+If you try to use a character set that is not compiled into your binary,
+you can run into a couple of different problems:
+
+@itemize @bullet
+@item
+Your program has a wrong path to where the character sets are stored.
+(Default @file{/usr/local/mysql/share/mysql/charsets}).  
+This can be fixed by using the @code{--character-sets-dir}
+option to the program in question.
+@item
+The character set is a multi-byte-character set that can't be loaded
+dynamicly.  In this case you have to recompiled the program with the
+support for the character set.
+@item
+The character set is a dynamic character set, but you don't have a
+configure file for it.  In this case you should install the configure
+file for the character set from a new MySQL distribution.
+@item
+Your @file{Index} file doesn't contain the name for the character set.
+
+@example
+ERROR 1105: File '/usr/local/share/mysql/charsets/?.conf' not found
+(Errcode: 2)
+@end example
+
+In this case you should either get a new @code{Index} file or add
+by hand the name of any missing character sets.
+@end itemize
+
+For MyISAM tables, you can check the character set name and number for a
+table with @code{myisamchk -dvv table_name}.
+
 
 @node Server-Side Scripts, Client-Side Scripts, Localization, MySQL Database Administration
 @section MySQL Server-Side Scripts and Utilities
@@ -39313,7 +39353,7 @@ likely it is that we can fix the problem!
 * C API function overview::     C API Function Overview
 * C API functions::             C API Function Descriptions
 * C Thread functions::          C Thread Functions
-* C Embedded Server functions:: C Embedded Server Functions
+* C Embedded Server functions:: C Embedded Server functions.  C Embedded Server Functions
 * C API problems::              Common questions and problems when using the C API
 * Building clients::            Building Client Programs
 * Threaded clients::            How to Make a Threaded Client
@@ -42338,7 +42378,7 @@ For clients that use MySQL header files, you may need to specify a
 files.
 
 
-@node Threaded clients, libmysqld , Building clients, C
+@node Threaded clients, libmysqld, Building clients, C
 @subsection How to Make a Threaded Client
 
 @cindex clients, threaded

acinclude.m4

@@ -726,7 +726,7 @@ AC_MSG_CHECKING(for OpenSSL)
       openssl_includes="-I/usr/local/ssl/include"
       AC_DEFINE(HAVE_OPENSSL)
     else
-      AC_MSG_RESULT("disabled because --with-vio wasn't used")
+      AC_MSG_RESULT(disabled because --with-vio wasn not used)
     fi
   else
     AC_MSG_RESULT(no)
@@ -748,15 +748,19 @@ dnl Call MYSQL_CHECK_ORBIT even if mysqlfs == no, so that @orbit_*@
 dnl get substituted.
   MYSQL_CHECK_ORBIT
 
+  AC_MSG_CHECKING(if we should build MySQLFS)
   fs_dirs=""
   if test "$mysqlfs" = "yes"
   then
     if test -n "$orbit_exec_prefix"
     then
       fs_dirs=fs
+      AC_MSG_RESULT([yes])
     else
-      AC_MSG_RESULT("disabled because ORBIT, the CORBA ORB, wasn't found"])
+      AC_MSG_RESULT(disabled because ORBIT, the CORBA ORB, was not found)
     fi
+  else
+    AC_MSG_RESULT([no])
   fi
   AC_SUBST([fs_dirs])
 ])

include/m_ctype.h

@@ -57,6 +57,8 @@ extern CHARSET_INFO *default_charset_info;
 extern CHARSET_INFO *find_compiled_charset(uint cs_number);
 extern CHARSET_INFO *find_compiled_charset_by_name(const char *name);
 extern CHARSET_INFO  compiled_charsets[];
+extern uint compiled_charset_number(const char *name);
+extern const char *compiled_charset_name(uint charset_number);
 
 #define MY_CHARSET_UNDEFINED 0
 #define MY_CHARSET_CURRENT (default_charset_info->number)

mysys/charset.c

@@ -44,13 +44,6 @@ struct simpleconfig_buf_st {
   char *p;
 };
 
-/* Defined in strings/ctype.c */
-
-CHARSET_INFO *find_compiled_charset(uint cs_number);
-uint compiled_charset_number(const char *name);
-const char *compiled_charset_name(uint charset_number);
-
-
 static uint num_from_csname(CS_ID **cs, const char *name)
 {
   CS_ID **c;
@@ -264,21 +257,21 @@ static my_bool read_charset_file(uint cs_number, CHARSET_INFO *set,
 
 uint get_charset_number(const char *charset_name)
 {
-  my_bool error;
-  error = init_available_charsets(MYF(0));	/* If it isn't initialized */
-  if (error)
-    return compiled_charset_number(charset_name);
-  else
+  uint number=compiled_charset_number(charset_name);
+  if (number)
+    return number;
+  if (init_available_charsets(MYF(0)))	/* If it isn't initialized */
+    return 0;
   return num_from_csname(available_charsets, charset_name);
 }
 
 const char *get_charset_name(uint charset_number)
 {
-  my_bool error;
-  error = init_available_charsets(MYF(0));	/* If it isn't initialized */
-  if (error)
-    return compiled_charset_name(charset_number);
-  else
+  char *name=compiled_charset_name(charset_number);
+  if (*name != '?')
+    return name;
+  if (init_available_charsets(MYF(0)))	/* If it isn't initialized */
+    return "?";
   return name_from_csnum(available_charsets, charset_number);
 }
 
@@ -293,8 +286,8 @@ static CHARSET_INFO *find_charset(CHARSET_INFO **table, uint cs_number,
   return NULL;
 }
 
-static CHARSET_INFO *find_charset_by_name(CHARSET_INFO **table, const char *name,
-					  size_t tablesz)
+static CHARSET_INFO *find_charset_by_name(CHARSET_INFO **table,
+					  const char *name, size_t tablesz)
 {
   uint i;
   for (i = 0; i < tablesz; ++i)

sql/gen_lex_hash.cc

@@ -474,7 +474,7 @@ int main(int argc,char **argv)
 
   MY_INIT(argv[0]);
 
-  start_value=1060872L; best_t1=7930739L;  best_t2=4311642L;  best_type=3; /* mode=5333  add=6  type: 0 */
+  start_value=1109118L; best_t1=6657025L;  best_t2=6114496L;  best_type=1; /* mode=4903  add=3  type: 0 */
   if (get_options(argc,(char **) argv))
     exit(1);