Add missing parts for the "Cybozu" custom build, to avoid future manual patches.

configure.in:
  Normally, 'configure' does only support "case-insensitive" collations for UTF-8 character sets.
  However, a certain customer requires builds with a "case-sensitive" collation: 'utf8_general_cs'.
  In order to do custom builds without manual patches, this value gets special handling in 'configure'.
  Also, when it is given, the CPP symbol enabling the additional code is set.
mysys/charset-def.c:
  Rename the CPP symbol needed for "UTF8-case-sensitive" collation from customer name to function.
strings/ctype-utf8.c:
  Rename the CPP symbol needed for "UTF8-case-sensitive" collation from customer name to function.

BUILD/compile-pentium-cybozu

+#! /bin/sh
+
+path=`dirname $0`
+. "$path/SETUP.sh"
+
+extra_flags="$pentium_cflags $fast_cflags -g"
+extra_configs="$pentium_configs --with-charset=utf8 --with-collation=utf8_general_cs"
+
+. "$path/FINISH.sh"

configure.in

@@ -2770,16 +2770,23 @@ case $default_charset in
       ;;
     utf8)
       default_charset_default_collation="utf8_general_ci"
-      define(UTFC1, utf8_general_ci utf8_bin)
-      define(UTFC2, utf8_czech_ci utf8_danish_ci)
-      define(UTFC3, utf8_estonian_ci utf8_icelandic_ci)
-      define(UTFC4, utf8_latvian_ci utf8_lithuanian_ci)
-      define(UTFC5, utf8_persian_ci utf8_polish_ci utf8_romanian_ci)
-      define(UTFC6, utf8_slovak_ci utf8_slovenian_ci)
-      define(UTFC7, utf8_spanish2_ci utf8_spanish_ci)
-      define(UTFC8, utf8_swedish_ci utf8_turkish_ci)
-      define(UTFC9, utf8_unicode_ci)
-      UTFC="UTFC1 UTFC2 UTFC3 UTFC4 UTFC5 UTFC6 UTFC7 UTFC8 UTFC9"
+      if test "$default_collation" = "utf8_general_cs"; then
+        # For those who explicitly desire "utf8_general_cs", support it,
+        # and then also set the CPP switch enabling that code.
+        UTFC="utf8_general_cs"
+        AC_DEFINE([HAVE_UTF8_GENERAL_CS], [1], [certain Japanese customer])
+      else
+        define(UTFC1, utf8_general_ci utf8_bin)
+        define(UTFC2, utf8_czech_ci utf8_danish_ci)
+        define(UTFC3, utf8_estonian_ci utf8_icelandic_ci)
+        define(UTFC4, utf8_latvian_ci utf8_lithuanian_ci)
+        define(UTFC5, utf8_persian_ci utf8_polish_ci utf8_romanian_ci)
+        define(UTFC6, utf8_slovak_ci utf8_slovenian_ci)
+        define(UTFC7, utf8_spanish2_ci utf8_spanish_ci)
+        define(UTFC8, utf8_swedish_ci utf8_turkish_ci)
+        define(UTFC9, utf8_unicode_ci)
+        UTFC="UTFC1 UTFC2 UTFC3 UTFC4 UTFC5 UTFC6 UTFC7 UTFC8 UTFC9"
+      fi
       default_charset_collations="$UTFC"
       ;;
     *)

mysys/charset-def.c

@@ -62,7 +62,7 @@ extern CHARSET_INFO my_charset_utf8_slovak_uca_ci;
 extern CHARSET_INFO my_charset_utf8_spanish2_uca_ci;
 extern CHARSET_INFO my_charset_utf8_roman_uca_ci;
 extern CHARSET_INFO my_charset_utf8_persian_uca_ci;
-#ifdef HAVE_CYBOZU_COLLATION
+#ifdef HAVE_UTF8_GENERAL_CS
 extern CHARSET_INFO my_charset_utf8_general_cs;
 #endif
 #endif
@@ -149,7 +149,7 @@ my_bool init_compiled_charsets(myf flags __attribute__((unused)))
 #ifdef HAVE_CHARSET_utf8
   add_compiled_collation(&my_charset_utf8_general_ci);
   add_compiled_collation(&my_charset_utf8_bin);
-#ifdef HAVE_CYBOZU_COLLATION
+#ifdef HAVE_UTF8_GENERAL_CS
   add_compiled_collation(&my_charset_utf8_general_cs);
 #endif
 #ifdef HAVE_UCA_COLLATIONS

strings/ctype-utf8.c

@@ -2375,7 +2375,7 @@ CHARSET_INFO my_charset_utf8_bin=
     &my_collation_mb_bin_handler
 };
 
-#ifdef HAVE_CYBOZU_COLLATION
+#ifdef HAVE_UTF8_GENERAL_CS
 
 /*
  * These functions bacically do the same as their original, except