Introduce "configure" support for a new '-with-big-tables' option that can replace

the current way of passing '-DBIG_TABLES' to the compilers.

This is needed even in 4.0, as 'Do-compile-all' must use this new approach for
all "max" builds in 4.0, 4.1, and up.


acinclude.m4:
  Provide a new macro 'MYSQL_CHECK_BIG_TABLES' to check a '-with-big-tables' option 
  and set the CPP symbol 'BIG_TABLES' accordingly.
configure.in:
  Call the new 'MYSQL_CHECK_BIG_TABLES' macro.

acinclude.m4

@@ -868,6 +868,36 @@ AC_MSG_CHECKING(for OpenSSL)
 ])
 
 
+dnl ---------------------------------------------------------------------------
+dnl Macro: MYSQL_CHECK_BIG_TABLES
+dnl Sets BIG_TABLES if --with-big-tables is used
+dnl ---------------------------------------------------------------------------
+AC_DEFUN([MYSQL_CHECK_BIG_TABLES], [
+  AC_ARG_WITH([big-tables],
+              [
+  --with-big-tables       Support tables with more than 4 G rows even on 32 bit platforms],
+              [bigtables="$withval"],
+              [bigtables=no])
+  AC_MSG_CHECKING([for big tables support])
+
+  case "$bigtables" in
+    yes )
+      AC_DEFINE([BIG_TABLES], [1], [Support big tables])
+      AC_MSG_RESULT([yes])
+      [bigtables=yes]
+      ;;
+    * )
+      AC_MSG_RESULT([no])
+      [bigtables=no]
+      ;;
+  esac
+
+])
+dnl ---------------------------------------------------------------------------
+dnl END OF MYSQL_CHECK_BIG_TABLES SECTION
+dnl ---------------------------------------------------------------------------
+
+
 AC_DEFUN(MYSQL_CHECK_MYSQLFS, [
   AC_ARG_WITH([mysqlfs],
               [

configure.in

@@ -2482,6 +2482,7 @@ EOF
 AC_MSG_RESULT([default: $default_charset; compiled in: $CHARSETS])
 
 
+MYSQL_CHECK_BIG_TABLES
 MYSQL_CHECK_ISAM
 MYSQL_CHECK_BDB
 MYSQL_CHECK_INNODB