path: root/configure.in

dnl -*- ksh -*-
dnl Process this file with autoconf to produce a configure script.

AC_INIT(sql/mysqld.cc)
AC_CANONICAL_SYSTEM
# The Docs Makefile.am parses this line!
AM_INIT_AUTOMAKE(mysql, 4.0.1-alpha)
AM_CONFIG_HEADER(config.h)

PROTOCOL_VERSION=10
DOT_FRM_VERSION=6
# See the libtool docs for information on how to do shared lib versions.
SHARED_LIB_VERSION=11:0:0

# Set all version vars based on $VERSION. How do we do this more elegant ?
# Remember that regexps needs to quote [ and ] since this is run through m4
MYSQL_NO_DASH_VERSION=`echo $VERSION | sed -e "s|-.*$||"`
MYSQL_BASE_VERSION=`echo $MYSQL_NO_DASH_VERSION | sed -e "s|\.[[^.]]*$||"`
F_PART=`echo $MYSQL_BASE_VERSION | sed -e "s|\.||g"| sed -e "s|[a-zA-Z]\+||"|sed -e "s|^\(..\)$|\\10|"`
L_PART=`echo $MYSQL_NO_DASH_VERSION | sed -e "s|^[[0-9]]\.[[0-9]]*\.||" | sed -e "s|^\(.\)$|0\\1|" | sed -e "s|[[a-z]]||"`
MYSQL_VERSION_ID=${F_PART}${L_PART}

# The port should be constant for a LONG time
MYSQL_TCP_PORT_DEFAULT=3306
MYSQL_UNIX_ADDR_DEFAULT="/tmp/mysql.sock"

# Remember to add a directory sql/share/LANGUAGE
AVAILABLE_LANGUAGES="\
czech danish dutch english estonian french german greek hungarian \
italian japanese korean norwegian norwegian-ny polish portuguese \
romanian russian slovak spanish swedish ukrainian"

# Generate make rules for all error messages
AVAILABLE_LANGUAGES_ERRORS=
AVAILABLE_LANGUAGES_ERRORS_RULES=$srcdir/ac_available_languages_fragment
rm -f $AVAILABLE_LANGUAGES_ERRORS_RULES
for i in $AVAILABLE_LANGUAGES
do
  AVAILABLE_LANGUAGES_ERRORS="$AVAILABLE_LANGUAGES_ERRORS $i/errmsg.sys"
  echo "$i/errmsg.sys: $i/errmsg.txt
	\$(top_builddir)/extra/comp_err $i/errmsg.txt $i/errmsg.sys" \
    >> $AVAILABLE_LANGUAGES_ERRORS_RULES
done

#####
#####

AC_SUBST(MYSQL_NO_DASH_VERSION)
AC_SUBST(MYSQL_BASE_VERSION)
AC_SUBST(MYSQL_VERSION_ID)
AC_SUBST(PROTOCOL_VERSION)
AC_DEFINE_UNQUOTED(PROTOCOL_VERSION, $PROTOCOL_VERSION)
AC_SUBST(DOT_FRM_VERSION)
AC_DEFINE_UNQUOTED(DOT_FRM_VERSION, $DOT_FRM_VERSION)
AC_SUBST(SHARED_LIB_VERSION)
AC_SUBST(AVAILABLE_LANGUAGES)
AC_SUBST(AVAILABLE_LANGUAGES_ERRORS)
AC_SUBST_FILE(AVAILABLE_LANGUAGES_ERRORS_RULES)

# Canonicalize the configuration name.
SYSTEM_TYPE="$host_vendor-$host_os"
MACHINE_TYPE="$host_cpu"
AC_SUBST(SYSTEM_TYPE)
AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE")
AC_SUBST(MACHINE_TYPE)
AC_DEFINE_UNQUOTED(MACHINE_TYPE, "$MACHINE_TYPE")

# Detect intel x86 like processor
BASE_MACHINE_TYPE=$MACHINE_TYPE
case $MACHINE_TYPE in
  i?86) BASE_MACHINE_TYPE=i386 ;;
esac

# Save some variables and the command line options for mysqlbug
SAVE_CFLAGS="$CFLAGS"
SAVE_CXXFLAGS="$CXXFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
SAVE_CXXLDFLAGS="$CXXLDFLAGS"
CONF_COMMAND="$0 $ac_configure_args"
AC_SUBST(CONF_COMMAND)
AC_SUBST(SAVE_CFLAGS)
AC_SUBST(SAVE_CXXFLAGS)
AC_SUBST(SAVE_LDFLAGS)
AC_SUBST(SAVE_CXXLDFLAGS)
AC_SUBST(CXXLDFLAGS)

AC_PREREQ(2.12)dnl		Minimum Autoconf version required.

AM_MAINTAINER_MODE
AC_ARG_PROGRAM
AM_SANITY_CHECK
# This is needed is SUBDIRS is set
AC_PROG_MAKE_SET
# This generates rules for webpage generation for the MySQL homepage.
AM_CONDITIONAL(LOCAL, test -d ../web/SitePages)

# This is need before AC_PROG_CC
#

if test "x${CFLAGS-}" = x ; then
  cflags_is_set=no
else
  cflags_is_set=yes
fi

if test "x${CPPFLAGS-}" = x ; then
  cppflags_is_set=no
else
  cppflags_is_set=yes
fi

if test "x${LDFLAGS-}" = x ; then
  ldflags_is_set=no
else
  ldflags_is_set=yes
fi

# The following hack should ensure that configure doesn't add optimizing
# or debugging flags to CFLAGS or CXXFLAGS
CFLAGS="$CFLAGS "
CXXFLAGS="$CXXFLAGS "

dnl Checks for programs.
AC_PROG_AWK
AC_PROG_CC
AC_PROG_CXX
AC_PROG_CPP

# Fix for sgi gcc / sgiCC which tries to emulate gcc
if test "$CC" = "sgicc"
then
  ac_cv_prog_gcc="no"
fi
if test "$CXX" = "sgi++"
then
  GXX="no"
fi

if test "$ac_cv_prog_gcc" = "yes"
then
  AS="$CC -c"
  AC_SUBST(AS)
else
  AC_PATH_PROG(AS, as, as)
fi
# Still need ranlib for readline; local static use only so no libtool.
AC_PROG_RANLIB
# We use libtool
#AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL

#AC_LIBTOOL_DLOPEN AC_LIBTOOL_WIN32_DLL AC_DISABLE_FAST_INSTALL AC_DISABLE_SHARED AC_DISABLE_STATIC

# AC_PROG_INSTALL We should only need a AM_PROG_INSTALL
AC_PROG_INSTALL
# Not critical since the generated file is distributed
AC_PROG_YACC
AC_CHECK_PROG(PDFMANUAL, pdftex, manual.pdf)

AC_MSG_CHECKING("return type of sprintf")

#check the return type of sprintf
AC_TRY_RUN([
  int main()
    {
      char* s = "hello";
      char buf[6];
      if((int)sprintf(buf, s) == strlen(s))
	return 0;
      
      return -1;
     }
   ],
AC_DEFINE(SPRINTF_RETURNS_INT) AC_MSG_RESULT("int"),
 AC_TRY_RUN([
 int main()
   {
     char* s = "hello";
     char buf[6];
     if((char*)sprintf(buf,s) == buf + strlen(s))
       return 0;
     return -1;  
   }
], AC_DEFINE(SPRINTF_RETURNS_PTR) AC_MSG_RESULT("ptr"),
 AC_DEFINE(SPRINTF_RETURNS_GARBAGE) AC_MSG_RESULT("garbage")))
   	

# option, cache_name, variable
AC_DEFUN(AC_SYS_COMPILER_FLAG,
[
  AC_MSG_CHECKING($1)
  OLD_CFLAGS="[$]CFLAGS"
  AC_CACHE_VAL(mysql_cv_option_$2,
  [
    CFLAGS="[$]OLD_CFLAGS $1"
    AC_TRY_RUN([int main(){exit(0);}],mysql_cv_option_$2=yes,mysql_cv_option_$2=no,mysql_cv_option_$2=no)
 ])

  CFLAGS="[$]OLD_CFLAGS"
  
  if test x"[$]mysql_cv_option_$2" = "xyes" ; then
    $3="[$]$3 $1"
    AC_MSG_RESULT(yes)
    $5
  else
    AC_MSG_RESULT(no)
    $4
  fi
])

# arch, option, cache_name, variable
AC_DEFUN(AC_SYS_CPU_COMPILER_FLAG,
[
 if test "`uname -m 2>/dev/null`" = "$1" ; then
    AC_SYS_COMPILER_FLAG($2,$3,$4)
 fi
])

# os, option, cache_name, variable
AC_DEFUN(AC_SYS_OS_COMPILER_FLAG,
[
 if test "x$mysql_cv_sys_os" = "x$1" ; then
    AC_SYS_COMPILER_FLAG($2,$3,$4)
 fi
])

# We need some special hacks when running slowaris
AC_PATH_PROG(uname_prog, uname, no)

# We should go through this and put all the explictly system dependent
# stuff in one place
AC_MSG_CHECKING(operating system)
AC_CACHE_VAL(mysql_cv_sys_os,
[
if test "$uname_prog" != "no"; then
  mysql_cv_sys_os="`uname`"
else
  mysql_cv_sys_os="Not Solaris"
fi
])
AC_MSG_RESULT($mysql_cv_sys_os)

# This should be rewritten to use $target_os
case "$target_os" in
  sco3.2v5*) 
     CFLAGS="$CFLAGS -DSCO"
     CXXFLAGS="$CXXFLAGS -DSCO"
     LD='$(CC) $(CFLAGS)'
     case "$CFLAGS" in
       *-belf*) 
         AC_SYS_COMPILER_FLAG(-belf,sco_belf_option,CFLAGS,[],[
         case "$LDFLAGS" in
           *-belf*) ;;
           *) echo "Adding -belf option to ldflags."
              LDFLAGS="$LDFLAGS -belf"
           ;;
         esac
         ])
       ;;
       *)
         AC_SYS_COMPILER_FLAG(-belf,sco_belf_option,CFLAGS,[],[
         case "$LDFLAGS" in
           *-belf*) ;;
           *)
	     echo "Adding -belf option to ldflags."
             LDFLAGS="$LDFLAGS -belf"
           ;;
         esac
         ])
       ;;
     esac
  ;;
  sysv5UnixWare*) 
    if test "$GCC" != "yes"; then
      # We are using built-in inline function
      CFLAGS="$CFLAGS -Kalloca"
      CXX="$CXX -DNO_CPLUSPLUS_ALLOCA"
    else
      CXX="$CXX -DNO_CPLUSPLUS_ALLOCA"
    fi
  ;;
  sysv5OpenUNIX8*) 
    if test "$GCC" != "yes"; then
      # We are using built-in inline function
      CFLAGS="$CFLAGS -Kalloca"
      CXX="$CXX -DNO_CPLUSPLUS_ALLOCA"
    else
      CXX="$CXX -DNO_CPLUSPLUS_ALLOCA"
    fi
  ;;
esac
AC_SUBST(CC)
AC_SUBST(CFLAGS)
AC_SUBST(CXX)
AC_SUBST(CXXFLAGS)
AC_SUBST(LD)

export CC CFLAGS LD LDFLAGS

if test "$GXX" = "yes"
then
  # mysqld requires -fno-implicit-templates.
  # Disable exceptions as they seams to create problems with gcc and threads.
  # mysqld doesn't use run-time-type-checking, so we disable it.
  CXXFLAGS="$CXXFLAGS -fno-implicit-templates -fno-exceptions -fno-rtti"
fi

# Avoid bug in fcntl on some versions of linux
AC_MSG_CHECKING("if we should use 'skip-locking' as default for $target_os")
# Any wariation of Linux
if expr "$target_os" : "[[Ll]]inux.*" > /dev/null
then
  MYSQLD_DEFAULT_SWITCHES="--skip-locking"
  IS_LINUX="true"
  AC_MSG_RESULT("yes");
else
  MYSQLD_DEFAULT_SWITCHES=""
  IS_LINUX="false"
  AC_MSG_RESULT("no");
fi
AC_SUBST(MYSQLD_DEFAULT_SWITCHES)
AC_SUBST(IS_LINUX)

dnl Find paths to some shell programs
AC_PATH_PROG(LN, ln, ln)
# This must be able to take a -f flag like normal unix ln.
AC_PATH_PROG(LN_CP_F, ln, ln)
# If ln -f does not exists use -s (AFS systems)
if test -n "$LN_CP_F"; then
  LN_CP_F="$LN_CP_F -s"
fi

AC_PATH_PROG(MV, mv, mv)
AC_PATH_PROG(RM, rm, rm)
AC_PATH_PROG(CP, cp, cp)
AC_PATH_PROG(SED, sed, sed)
AC_PATH_PROG(CMP, cmp, cmp)
AC_PATH_PROG(CHMOD, chmod, chmod)
AC_PATH_PROG(HOSTNAME, hostname, hostname)
dnl We use a path for perl so the script startup works
dnl We make sure to use perl, not perl5, in hopes that the RPMs will
dnl not depend on the perl5 binary being installed (probably a bug in RPM)
AC_PATH_PROG(PERL, perl, no)
if test "$PERL" != "no" && $PERL -e 'require 5' > /dev/null 2>&1
then
  PERL5=$PERL
else
  AC_PATH_PROG(PERL5, perl5, no)
  if test "$PERL5" != no
  then
    PERL=$PERL5
    ac_cv_path_PERL=$ac_cv_path_PERL5
  fi
fi

AC_SUBST(HOSTNAME)
AC_SUBST(PERL)
AC_SUBST(PERL5)

# Lock for PS
AC_PATH_PROG(PS, ps, ps)
AC_MSG_CHECKING("how to check if pid exists")
PS=$ac_cv_path_PS
# Linux style
if $PS p $$ 2> /dev/null | grep $0 > /dev/null
then
  FIND_PROC="$PS p \$\$PID | grep mysqld > /dev/null"
# Solaris
elif $PS -p $$ 2> /dev/null | grep $0 > /dev/null
then
  FIND_PROC="$PS -p \$\$PID | grep mysqld > /dev/null"
# BSD style
elif $PS -uaxww 2> /dev/null | grep $0 > /dev/null
then
  FIND_PROC="$PS -uaxww | grep mysqld | grep \" \$\$PID \" > /dev/null"
# SysV style
elif $PS -ef 2> /dev/null | grep $0 > /dev/null
then
  FIND_PROC="$PS -ef | grep mysqld | grep \" \$\$PID \" > /dev/null"
# Do anybody use this?
elif $PS $$ 2> /dev/null | grep $0 > /dev/null
then
  FIND_PROC="$PS \$\$PID | grep mysqld > /dev/null"
else
  case $SYSTEM_TYPE in
    *darwin*)
      FIND_PROC="$PS -uaxww | grep mysqld | grep \" \$\$PID \" > /dev/null"
      ;;
    *cygwin*)
      FIND_PROC="$PS -e | grep mysqld | grep \" \$\$PID \" > /dev/null"
      ;;
    *)
      AC_MSG_ERROR([Could not find the right ps switches. Which OS is this ?. See the Installation chapter in the Reference Manual.])
  esac
fi
AC_SUBST(FIND_PROC)
AC_MSG_RESULT("$FIND_PROC")

# Check if a pid is valid
AC_PATH_PROG(KILL, kill, kill)
AC_MSG_CHECKING("for kill switches")
if $ac_cv_path_KILL -0 $$
then
  CHECK_PID="$ac_cv_path_KILL -0 \$\$PID > /dev/null 2> /dev/null"
elif kill -s 0 $$
then
  CHECK_PID="$ac_cv_path_KILL -s 0 \$\$PID > /dev/null 2> /dev/null"
else
  AC_MSG_WARN([kill -0 to check for pid seems to fail])
    CHECK_PID="$ac_cv_path_KILL -s SIGCONT \$\$PID > /dev/null 2> /dev/null"
fi
AC_SUBST(CHECK_PID)
AC_MSG_RESULT("$CHECK_PID")

# We need a ANSI C compiler
AM_PROG_CC_STDC

if test "$am_cv_prog_cc_stdc" = "no"
then
  AC_MSG_ERROR([MySQL requires a ANSI C compiler (and a C++ compiler). Try gcc. See the Installation chapter in the Reference Manual.])
fi

NOINST_LDFLAGS=

AC_ARG_WITH(other-libc,
 [ --with-other-libc=/path/to/other/libc/dir Link against libc and other standard libraries installed in the specified non-standard location overriding default. Originally added to be able to link against glibc 2.2 without making the user upgrade the standard libc installation ],
 [
   other_libc_include="$withval/include"
   other_libc_lib="$withval/lib"
   with_other_libc="yes"
   enable_shared="no"
   all_is_static="yes"
   CFLAGS="$CFLAGS -I$other_libc_include"
   CXXFLAGS="$CXXFLAGS -fpermissive -I$other_libc_include"
#There seems to be a feature in gcc that treats system and libc headers
#leniently when they violatate ANSI C++ standard, but it is strict otherwise
#since gcc cannot now recognize that our headers are libc, we work around
#by telling it to be permissive   
   LDFLAGS="$LDFLAGS -static -L$other_libc_lib "
   with_mysqld_ldflags="-all-static"
   with_client_ldflags="-all-static"
   NOINST_LDFLAGS="-all-static"
#when linking against custom libc installed separately, we want to force all
#binary builds to be static, including the build done by configure itself
#to test for system features   
 ],
 [
  other_libc_include=
  other_libc_lib=
  with_other_libc="no"
 ]
)
AC_SUBST(NOINST_LDFLAGS)

AC_ARG_WITH(server-suffix,
    [  --with-server-suffix    Append value to the version string.],
    # I heard that 'cut' isn't portable.  Isn't there a better way?
    [ MYSQL_SERVER_SUFFIX=`echo "$withval" | sed -e  's/^\(...................................\)..*$/\1/'` ],
    [ MYSQL_SERVER_SUFFIX= ]
    )
AC_SUBST(MYSQL_SERVER_SUFFIX)

# Set flags if we wants to have MIT threads.
AC_ARG_WITH(mit-threads,
    [  --with-mit-threads      Always use included thread lib.],
    [ with_mit_threads=$withval ],
    [ with_mit_threads=no ]
    )

if test "$with_mit_threads" = "yes"
then
  enable_largefile="no"		# Will not work on Linux.
fi

# Set flags if we want to force to use pthreads
AC_ARG_WITH(pthread,
    [  --with-pthread          Force use of pthread library.],
    [ with_pthread=$withval ],
    [ with_pthread=no ]
    )

# Force use of thread libs LIBS
AC_ARG_WITH(named-thread-libs,
    [  --with-named-thread-libs=ARG
                          Use specified thread libraries instead of 
                          those automatically found by configure.],
    [ with_named_thread=$withval ],
    [ with_named_thread=no ]
    )

# Force use of a curses libs
AC_ARG_WITH(named-curses-libs,
    [  --with-named-curses-libs=ARG
                          Use specified curses libraries instead of 
                          those automatically found by configure.],
    [ with_named_curses=$withval ],
    [ with_named_curses=no ]
    )

# Force use of a zlib (compress)
AC_ARG_WITH(named-z-libs,
    [  --with-named-z-libs=ARG
                          Use specified zlib libraries instead of
                          those automatically found by configure.],
    [ with_named_zlib=$withval ],
    [ with_named_zlib=z ]
    )

# Make thread safe client
AC_ARG_ENABLE(thread-safe-client,
    [  --enable-thread-safe-client   
                          Compile the client with threads.],
    [ THREAD_SAFE_CLIENT=$enableval ],
    [ THREAD_SAFE_CLIENT=no ]
    )

# Make thread safe client
AC_ARG_ENABLE(assembler,
    [  --enable-assembler      Use assembler versions of some string 
                          functions if available.],
    [ ENABLE_ASSEMBLER=$enableval ],
    [ ENABLE_ASSEMBLER=no ]
    )

AC_MSG_CHECKING(if we should use assembler functions)
# For now we only support assembler on i386 and sparc systems
AM_CONDITIONAL(ASSEMBLER_x86, test "$ENABLE_ASSEMBLER" = "yes" -a "$BASE_MACHINE_TYPE" = "i386")
AM_CONDITIONAL(ASSEMBLER_sparc, test "$ENABLE_ASSEMBLER" = "yes" -a "$BASE_MACHINE_TYPE" = "sparc")
AM_CONDITIONAL(ASSEMBLER, test "$ASSEMBLER_x86_TRUE" = "" -o "$ASSEMBLER_sparc_TRUE" = "")

if test "$ASSEMBLER_TRUE" = ""
then
  AC_MSG_RESULT([yes])
else
  AC_MSG_RESULT([no])
fi


AC_MSG_CHECKING(if we should use RAID)
AC_ARG_WITH(raid,
    [  --with-raid             Enable RAID Support],
    [   USE_RAID=$withval ],
    [   USE_RAID=no ]
    )
if test "$USE_RAID" = "yes"
then
  AC_MSG_RESULT([yes])
  AC_DEFINE([USE_RAID])
else
  AC_MSG_RESULT([no])
fi

# Use this to set the place used for unix socket used to local communication.
AC_ARG_WITH(unix-socket-path,
    [  --with-unix-socket-path=SOCKET
                          Where to put the unix-domain socket.  SOCKET must be 
                          an absolute file name.],
    [ MYSQL_UNIX_ADDR=$withval ],
    [ MYSQL_UNIX_ADDR=$MYSQL_UNIX_ADDR_DEFAULT ]
    )
AC_SUBST(MYSQL_UNIX_ADDR)

AC_ARG_WITH(tcp-port,
    [  --with-tcp-port=port-number
                          Which port to use for MySQL services (default 3306)],
    [ MYSQL_TCP_PORT=$withval ],
    [ MYSQL_TCP_PORT=$MYSQL_TCP_PORT_DEFAULT ]
    )
AC_SUBST(MYSQL_TCP_PORT)
# We might want to document the assigned port in the manual.
AC_SUBST(MYSQL_TCP_PORT_DEFAULT)

# Use this to set the place used for unix socket used to local communication.
AC_ARG_WITH(mysqld-user,
    [  --with-mysqld-user=username   
                          What user the mysqld daemon shall be run as.],
    [ MYSQLD_USER=$withval ],
    [ MYSQLD_USER=mysql ]
    )
AC_SUBST(MYSQLD_USER)

# Use Paul Eggerts macros from GNU tar to check for large file
# support.
AC_SYS_LARGEFILE

# Types that must be checked AFTER large file support is checked
AC_TYPE_SIZE_T

#--------------------------------------------------------------------
# Check for system header files
#--------------------------------------------------------------------

AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(fcntl.h float.h floatingpoint.h ieeefp.h limits.h \
 memory.h pwd.h select.h \
 stdlib.h stddef.h \
 strings.h string.h synch.h sys/mman.h sys/socket.h netinet/in.h arpa/inet.h \
 sys/timeb.h sys/types.h sys/un.h sys/vadvise.h sys/wait.h term.h \
 unistd.h utime.h sys/utime.h termio.h termios.h sched.h crypt.h alloca.h \
 sys/ioctl.h)

#--------------------------------------------------------------------
# Check for system libraries. Adds the library to $LIBS
# and defines HAVE_LIBM etc
#--------------------------------------------------------------------

AC_CHECK_LIB(m, floor, [], AC_CHECK_LIB(m, __infinity))
AC_CHECK_FUNC(gethostbyname_r, [], [
  AC_CHECK_LIB(nsl_r, gethostbyname_r, [],
    AC_CHECK_LIB(nsl, gethostbyname_r))])
AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
AC_CHECK_FUNC(yp_get_default_domain, ,
  AC_CHECK_LIB(nsl, yp_get_default_domain))
AC_CHECK_FUNC(p2open, , AC_CHECK_LIB(gen, p2open))
# This may get things to compile even if bind-8 is installed
AC_CHECK_FUNC(bind, , AC_CHECK_LIB(bind, bind))
# For crypt() on Linux
AC_CHECK_LIB(crypt, crypt)
AC_CHECK_FUNC(crypt, AC_DEFINE(HAVE_CRYPT)) 

# For compress in zlib
MYSQL_CHECK_ZLIB_WITH_COMPRESS($with_named_zlib)

#--------------------------------------------------------------------
# Check for TCP wrapper support
#--------------------------------------------------------------------

AC_ARG_WITH(libwrap,
[  --with-libwrap[=DIR]    Compile in libwrap (tcp_wrappers) support],[
  case "$with_libwrap" in
  no) : ;;
  yes|*)
    _cppflags=${CPPFLAGS}
    _ldflags=${LDFLAGS}

    if test "$with_libwrap" != "yes"; then
      CPPFLAGS="${CPPFLAGS} -I$with_libwrap/include"
      LDFLAGS="${LDFLAGS} -L$with_libwrap/lib"
    fi

    _libs=${LIBS}
    AC_CHECK_HEADER(tcpd.h,
      LIBS="$LIBS -lwrap"
      AC_MSG_CHECKING(for TCP wrappers library -lwrap)
      AC_TRY_LINK([#include <tcpd.h>
int allow_severity = 0;
int deny_severity  = 0;

struct request_info *req;
],[hosts_access (req)],
        AC_MSG_RESULT(yes)
        AC_DEFINE(LIBWRAP)
        AC_DEFINE(HAVE_LIBWRAP)
	if test "$with_libwrap" != "yes"; then
	    WRAPLIBS="-L${with_libwrap}/lib"
	fi
	WRAPLIBS="${WRAPLIBS} -lwrap",
        AC_MSG_RESULT(no)
        CPPFLAGS=${_cppflags} LDFLAGS=${_ldflags}),
      CPPFLAGS=${_cppflags} LDFLAGS=${_ldflags})
    LDFLAGS=${_ldflags} LIBS=${_libs}
    ;;
  esac
])
AC_SUBST(WRAPLIBS)

if test "$IS_LINUX" = "true"; then
  AC_MSG_CHECKING([for atomic operations])

  atom_ops=
  AC_TRY_RUN([
#include <asm/atomic.h>
int main()
{
  atomic_t v;

  atomic_set(&v, 23);
  atomic_add(5, &v);
  return atomic_read(&v) == 28 ? 0 : -1;
}
  ], AC_DEFINE(HAVE_ATOMIC_ADD) atom_ops="${atom_ops}atomic_add ",
  )
  AC_TRY_RUN([
#include <asm/atomic.h>
int main()
{
  atomic_t v;

  atomic_set(&v, 23);
  atomic_sub(5, &v);
  return atomic_read(&v) == 18 ? 0 : -1;
}
  ], AC_DEFINE(HAVE_ATOMIC_SUB) atom_ops="${atom_ops}atomic_sub ",
  )

  if test -z "$atom_ops"; then atom_ops="no"; fi
  AC_MSG_RESULT($atom_ops)

  AC_ARG_WITH(pstack,
    [  --with-pstack           Use the pstack backtrace library],
    [ USE_PSTACK=$withval ],
    [ USE_PSTACK=no ])
  pstack_libs=
  pstack_dirs=
  if test "$USE_PSTACK" = yes -a "$IS_LINUX" = "true" -a "$BASE_MACHINE_TYPE" = "i386" -a "$with_mit_threads" = "no"
  then
    have_libiberty= have_libbfd=
    my_save_LIBS="$LIBS"
dnl I have no idea if this is a good test - can not find docs for libiberty  
    AC_CHECK_LIB([iberty], [fdmatch],
      [have_libiberty=yes
       AC_CHECK_LIB([bfd], [bfd_openr], [have_libbfd=yes], , [-liberty])])
    LIBS="$my_save_LIBS"

    if test x"$have_libiberty" = xyes -a x"$have_libbfd" = xyes
    then
      pstack_dirs='$(top_srcdir)'/pstack
      pstack_libs="../pstack/libpstack.a -lbfd -liberty"
      # We must link staticly when using pstack
      with_mysqld_ldflags="-all-static"
      AC_SUBST([pstack_dirs])
      AC_SUBST([pstack_libs])
      AC_DEFINE([USE_PSTACK])
dnl This check isn't needed, but might be nice to give some feedback....
dnl    AC_CHECK_HEADER(libiberty.h,
dnl      have_libiberty_h=yes,
dnl      have_libiberty_h=no)
    else
      USE_PSTACK="no"
    fi
  else
    USE_PSTACK="no"
  fi
fi
AM_CONDITIONAL(COMPILE_PSTACK, test "$USE_PSTACK" = "yes")
AC_MSG_CHECKING([if we should use pstack])
AC_MSG_RESULT([$USE_PSTACK])

# Check for gtty if termio.h doesn't exists
if test "$ac_cv_header_termio_h" = "no" -a "$ac_cv_header_termios_h" = "no"
then
  AC_CHECK_FUNC(gtty, , AC_CHECK_LIB(compat, gtty))
fi
# We make a special variable for client library's to avoid including
# thread libs in the client.
NON_THREADED_CLIENT_LIBS="$LIBS"

AC_MSG_CHECKING([for int8])
AC_TRY_RUN([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif

#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif

#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif

int main()
{
  int8 i;
  return 0;
}
], AC_DEFINE(HAVE_INT_8_16_32) AC_MSG_RESULT([yes]), AC_MSG_RESULT([no])
)

#
# Some system specific hacks
#

MAX_C_OPTIMIZE="-O3"

case $SYSTEM_TYPE in
  *solaris2.7*)
    # Solaris 2.7 has a broken /usr/include/widec.h
    # Make a fixed copy in ./include
    echo "Fixing broken include files for $SYSTEM_TYPE"
    echo "  - Creating local copy of widec.h"
    if test ! -d include
    then
      mkdir ./include
    fi
    builddir=`pwd`
    sed -e "s|^#if[ 	]*!defined(lint) && !defined(__lint)|#if !defined\(lint\) \&\& !defined\(__lint\) \&\& !defined\(getwc\)|" < /usr/include/widec.h > include/widec.h
    CFLAGS="$CFLAGS -DHAVE_CURSES_H -I$builddir/include -DHAVE_RWLOCK_T"
    CXXFLAGS="$CXXFLAGS -DHAVE_CURSES_H -I$builddir/include -DHAVE_RWLOCK_T"
    ;;
  *solaris2.8*)
    # Solaris 2.8 has a broken /usr/include/widec.h
    # Make a fixed copy in ./include
    echo "Fixing broken include files for $SYSTEM_TYPE"
    echo "  - Creating local copy of widec.h"
    if test ! -d include
    then
      mkdir ./include
    fi
    builddir=`pwd`
    sed -e "s|^#if[ 	]*!defined(__lint)|#if !defined\(__lint\) \&\& !defined\(getwc\)|" < /usr/include/widec.h > include/widec.h
    CFLAGS="$CFLAGS -DHAVE_CURSES_H -I$builddir/include -DHAVE_RWLOCK_T"
    CXXFLAGS="$CXXFLAGS -DHAVE_CURSES_H -I$builddir/include -DHAVE_RWLOCK_T"
    ;;
  *solaris2.5.1*)
    echo "Enabling getpass() workaround for Solaris 2.5.1"
    CFLAGS="$CFLAGS -DHAVE_BROKEN_GETPASS -DSOLARIS -DHAVE_RWLOCK_T";
    CXXFLAGS="$CXXFLAGS -DHAVE_RWLOCK_T -DSOLARIS"
    ;;
  *solaris*)
    CFLAGS="$CFLAGS -DHAVE_RWLOCK_T"
    CXXFLAGS="$CXXFLAGS -DHAVE_RWLOCK_T"
    ;;
  *SunOS*)
    echo "Enabling getpass() workaround for SunOS"
    CFLAGS="$CFLAGS -DHAVE_BROKEN_GETPASS -DSOLARIS";
    ;;
  *hpux10.20*)
    echo "Enabling snprintf workaround for hpux 10.20"
    CFLAGS="$CFLAGS -DHAVE_BROKEN_SNPRINTF -DSIGNALS_DONT_BREAK_READ"
    CXXFLAGS="$CXXFLAGS -DHAVE_BROKEN_SNPRINTF -D_INCLUDE_LONGLONG -DSIGNALS_DONT_BREAK_READ"
    if test "$with_named_thread" = "no"
    then 
      echo "Using --with-named-thread=-lpthread"
      with_named_thread="-lcma"
    fi
    ;;
  *hpux11.*)
    echo "Enabling pread/pwrite workaround for hpux 11"
    CFLAGS="$CFLAGS -DHAVE_BROKEN_PREAD -DDONT_USE_FINITE -DHAVE_BROKEN_GETPASS -DNO_FCNTL_NONBLOCK"
    CXXFLAGS="$CXXFLAGS -DHAVE_BROKEN_PREAD -DDONT_USE_FINITE -D_INCLUDE_LONGLONG -DNO_FCNTL_NONBLOCK"
    if test "$with_named_thread" = "no"
    then 
      echo "Using --with-named-thread=-lpthread"
      with_named_thread="-lpthread"
    fi
    ;;
  *rhapsody*)
    if test "$ac_cv_prog_gcc" = "yes"
    then
      CPPFLAGS="$CPPFLAGS -traditional-cpp "
      CFLAGS="-DHAVE_CTHREADS_WRAPPER -DDO_NOT_REMOVE_THREAD_WRAPPERS"
      CXXFLAGS="-DHAVE_CTHREADS_WRAPPER"
      if test $with_named_curses = "no"
      then
	with_named_curses=""
      fi
    fi
    ;;
  *darwin*)
    if test "$ac_cv_prog_gcc" = "yes"
    then
      CFLAGS="$CFLAGS -traditional-cpp -DHAVE_DARWIN_THREADS -D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ"
      CXXFLAGS="$CXXFLAGS -traditional-cpp -DHAVE_DARWIN_THREADS -D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ"
      MAX_C_OPTIMIZE="-O"
      with_named_curses=""
    fi
    ;;
  *freebsd*)
    echo "Adding fix for interrupted reads"
    CXXFLAGS="$CXXFLAGS -DMYSQLD_NET_RETRY_COUNT=1000000"
    ;;
  *netbsd*)
    echo "Adding flag -Dunix"
    CFLAGS="$CFLAGS -Dunix"
    CXXFLAGS="$CXXFLAGS -Dunix"
    OVERRIDE_MT_LD_ADD="\$(top_srcdir)/mit-pthreads/obj/libpthread.a"
    ;;
  *bsdi*)
    echo "Adding fix for BSDI"
    CFLAGS="$CFLAGS -D__BSD__ -DHAVE_BROKEN_REALPATH"
    AC_DEFINE_UNQUOTED(SOCKOPT_OPTLEN_TYPE, size_t)
    ;;
   *sgi-irix6*)
    if test "$with_named_thread" = "no"
    then 
      echo "Using --with-named-thread=-lpthread"
      with_named_thread="-lpthread"
    fi
    CXXFLAGS="-D_BOOL"
    ;;
    *aix4.3*)
      echo "Adding defines for AIX"
      CFLAGS="$CFLAGS -Wa,-many -DUNDEF_HAVE_INITGROUPS -DSIGNALS_DONT_BREAK_READ"
      CXXFLAGS="$CXXFLAGS -Wa,-many -DUNDEF_HAVE_INITGROUPS -DSIGNALS_DONT_BREAK_READ"
    ;;
dnl Is this the right match for DEC OSF on alpha?
    *dec-osf*)
      if test "$ac_cv_prog_gcc" = "yes" && test "$host_cpu" = "alpha"
      then
	  echo "Adding defines for DEC OSF on alpha"
	  CFLAGS="$CFLAGS -mieee"
	  CXXFLAGS="$CXXFLAGS -mieee"
      fi
    ;;
esac


#---START: Used in for client configure
# Check if we threads are in libc or if we should use
# -lpthread, -lpthreads or mit-pthreads
# We have to check libc last because else it fails on Solaris 2.6

with_posix_threads="no"
# Hack for DEC-UNIX (OSF1)
if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
then
  # Look for LinuxThreads.
  AC_MSG_CHECKING("LinuxThreads")
    res=`grep Linuxthreads /usr/include/pthread.h 2>/dev/null | wc -l`
    if test "$res" -gt 0
    then
      AC_MSG_RESULT("Found")
      AC_DEFINE(HAVE_LINUXTHREADS)
      # Linux 2.0 sanity check
      AC_TRY_COMPILE([#include <sched.h>], [int a = sched_get_priority_min(1);], ,
      AC_MSG_ERROR([Syntax error in sched.h. Change _P to __P in the /usr/include/sched.h file. See the Installation chapter in the Reference Manual]))
      # RedHat 5.0 does not work with dynamic linking of this. -static also
      # gives a spped increase in linux so it does not hurt on other systems.
      with_named_thread="-lpthread"
    else
      AC_MSG_RESULT("Not found")
      # If this is a linux machine we should barf
      if test "$IS_LINUX" = "true"
      then
	AC_MSG_ERROR([This is a linux system and Linuxthreads was not
found. On linux Linuxthreads should be used. So install Linuxthreads
(or a new glibc) and try again. See the Installation chapter in the
Reference Manual.])
      else
	AC_MSG_CHECKING("DEC threads")
        if test -f /usr/shlib/libpthread.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
	then
	  with_named_thread="-lpthread -lmach -lexc"
	  #with_named_thread="-lpthread -lmach -lexc -lc"
	  AC_DEFINE(HAVE_DEC_THREADS)
	  AC_MSG_RESULT("yes")
	else
	  AC_MSG_RESULT("no")
	  AC_MSG_CHECKING("DEC 3.2 threads")
          if test -f /usr/shlib/libpthreads.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
	  then
	    with_named_thread="-lpthreads -lmach -lc_r"
	    AC_DEFINE(HAVE_DEC_THREADS)
	    AC_DEFINE(HAVE_DEC_3_2_THREADS)
            with_osf32_threads="yes"
            MYSQLD_DEFAULT_SWITCHES="--skip-thread-priority"
	    AC_MSG_RESULT("yes")
	  else
	    AC_MSG_RESULT("no")
          fi
	fi
     fi
   fi
fi


dnl This is needed because -lsocket has to come after the thread
dnl library on SCO.
AC_DEFUN([MYSQL_REMOVE_SOCKET_FROM_LIBS_HACK], [
  LIBS=`echo " $LIBS " | sed -e 's/ -lsocket / /g'`
])
# Hack for SCO UNIX
if test "$with_named_thread" = "no"
then
  AC_MSG_CHECKING("SCO threads")
  if expr "$SYSTEM_TYPE" : ".*sco.*" > /dev/null
  then
    if test -f /usr/lib/libgthreads.a -o -f /usr/lib/libgthreads.so
    then
      MYSQL_REMOVE_SOCKET_FROM_LIBS_HACK
      with_named_thread="-lgthreads -lsocket -lgthreads"
      # sched.h conflicts with fsu-threads
      touch ./include/sched.h

      # We must have gcc
      if expr "$CC" : ".*gcc.*"
      then
	AC_MSG_RESULT("yes")
      else
	AC_MSG_ERROR([On SCO UNIX MySQL must be compiled with gcc. See the Installation chapter in the Reference Manual.]);
      fi
      AC_MSG_RESULT("yes")
    elif test -f /usr/local/lib/libpthread.a -o -f /usr/local/lib/libpthread.so
    then
      MYSQL_REMOVE_SOCKET_FROM_LIBS_HACK
      with_named_thread="-lpthread -lsocket"
      # sched.h conflicts with fsu-threads
      # touch ./include/sched.h

      AC_MSG_CHECKING("for gcc")
      # We must have gcc
      if expr "$CC" : ".*gcc.*"
      then
	AC_MSG_RESULT("yes")
      else
	AC_MSG_ERROR([On SCO UNIX MySQL must be compiled with gcc. See the Installation chapter in the Reference Manual.]);
      fi
      AC_MSG_RESULT("yes")
    # Hack for SCO UnixWare 7.1
    #
    elif test "$with_named_thread" = "no"
    then
      AC_MSG_RESULT("no")
      AC_MSG_CHECKING("SCO UnixWare 7.1 native threads")
      if expr "$SYSTEM_TYPE" : ".*sco.*" > /dev/null
      then
        if test -f /usr/lib/libthread.so -o -f /usr/lib/libthreadT.so
        then
	  MYSQL_REMOVE_SOCKET_FROM_LIBS_HACK
          if expr "$CC" : ".*gcc.*"
          then
            with_named_thread="-pthread -lsocket -lnsl"
          else
            with_named_thread="-Kthread -lsocket -lnsl"
          fi
          if expr "$SYSTEM_TYPE" : ".*unixware7.0.0" > /dev/null
          then
            AC_DEFINE(HAVE_UNIXWARE7_THREADS)
          else
            AC_DEFINE(HAVE_UNIXWARE7_POSIX)
          fi
          AC_MSG_RESULT("yes")
          # We must have cc
          AC_MSG_CHECKING("for gcc")
          if expr "$CC" : ".*gcc.*"
          then
	    CC="$CC -pthread -DUNIXWARE_7";
	    CXX="$CXX -pthread -DUNIXWARE_7";
          else
	    CC="$CC -Kthread -DUNIXWARE_7";
	    CXX="$CXX -Kthread -DUNIXWARE_7";
          fi
        else
          { echo "configure: error: Can't find thread libs on SCO UnixWare7. See the Installation chapter in the Reference Manual." 1>&2; exit 1; };
        fi
      else
        AC_MSG_RESULT("no")
      fi
    else
      AC_MSG_ERROR([On SCO UNIX MySQL requires that the FSUThreads package is installed. See the Installation chapter in the Reference Manual.]);
    fi
  else
    AC_MSG_RESULT("no")
  fi
fi
# Hack for SCO UnixWare7
#
if test "$with_named_thread" = "no"
then
  AC_MSG_CHECKING("SCO UnixWare7 native threads")
  if expr "$SYSTEM_TYPE" : ".*UnixWare*" > /dev/null
  then
    if test -f /usr/lib/libthread.so -o -f /usr/lib/libthreadT.so
    then
      MYSQL_REMOVE_SOCKET_FROM_LIBS_HACK
      with_named_thread="-Kthread -lsocket -lnsl"
      if expr "$SYSTEM_TYPE" : ".*unixware7.0.0" > /dev/null
      then
        AC_DEFINE(HAVE_UNIXWARE7_THREADS)
      else
        AC_DEFINE(HAVE_UNIXWARE7_POSIX)
      fi
      # We must have cc
      AC_MSG_CHECKING("for gcc")
      if expr "$CC" : ".*gcc.*"
      then
	{ echo "configure: error: On SCO UnixWare7 MySQL must be compiled with cc. See the Installation chapter in the Reference Manual." 1>&2; exit 1; };
      else
	CC="$CC -Kthread -DUNIXWARE_7";
	CXX="$CXX -Kthread -DUNIXWARE_7";
      fi
      AC_MSG_RESULT("yes")
    else
      { echo "configure: error: Can't find thread libs on SCO UnixWare7. See the Installation chapter in the Reference Manual." 1>&2; exit 1; };
    fi
  else
    AC_MSG_RESULT("no")
  fi
fi

# Hack for Caldera OpenUNIX8
#
if test "$with_named_thread" = "no"
then
  AC_MSG_CHECKING("OpenUNIX8 native threads")
  if expr "$SYSTEM_TYPE" : ".*OpenUNIX*" > /dev/null
  then
    if test -f /usr/lib/libthread.so -o -f /usr/lib/libthreadT.so
    then
      MYSQL_REMOVE_SOCKET_FROM_LIBS_HACK
      with_named_thread="-Kthread -lsocket -lnsl"
      if expr "$SYSTEM_TYPE" : ".*unixware7.0.0" > /dev/null
      then
#        AC_DEFINE(HAVE_OpenUNIX8_THREADS)
        AC_DEFINE(HAVE_UNIXWARE7_THREADS)
      else
#        AC_DEFINE(HAVE_OpenUNIX8_POSIX)
        AC_DEFINE(HAVE_UNIXWARE7_POSIX)
      fi
      # We must have cc
      AC_MSG_CHECKING("for gcc")
      if expr "$CC" : ".*gcc.*"
      then
	{ echo "configure: error: On OpenUNIX8 and UnixWare7 MySQL must be compiled with cc. See the Installation chapter in the Reference Manual." 1>&2; exit 1; };
      else
#	CC="$CC -Kthread -DOpenUNIX8";
#	CXX="$CXX -Kthread -DOpenUNIX8";
	CC="$CC -Kthread -DUNIXWARE_7";
	CXX="$CXX -Kthread -DUNIXWARE_7";
      fi
      AC_MSG_RESULT("yes")
    else
      { echo "configure: error: Can't find thread libs on Caldera OpenUNIX 8. See the Installation chapter in the Reference Manual." 1>&2; exit 1; };
    fi
  else
    AC_MSG_RESULT("no")
  fi
fi

# Hack for Siemens UNIX
if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
then
  AC_MSG_CHECKING("Siemens threads")
  if test -f /usr/lib/libxnet.so -a "$SYSTEM_TYPE" = "sni-sysv4"
  then
    LIBS="-lxnet $LIBS"
    NON_THREADED_CLIENT_LIBS="$NON_THREADED_CLIENT_LIBS -lxnet"
    with_named_thread="-Kthread $LDFLAGS -lxnet"
    LD_FLAGS=""
    CFLAGS="-Kthread $CFLAGS"
    CXXFLAGS="-Kthread $CXXFLAGS"
    AC_MSG_RESULT("yes")
  else
    AC_MSG_RESULT("no")
  fi
fi

# Use library named -lpthread
if test "$with_named_thread" = "no" -a "$with_pthread" = "yes"
then
    with_named_thread="-lpthread"
fi

#---END:

# Hack for Solaris >= 2.5
# We want both the new and the old interface
 
if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
then
  AC_MSG_CHECKING("Solaris threads")
  if test -f /usr/lib/libpthread.so -a -f /usr/lib/libthread.so
  then
    with_named_thread="-lpthread -lthread"
    AC_MSG_RESULT("yes")
  else
    AC_MSG_RESULT("no")
  fi
fi

TOOLS_LIBS="$NON_THREADED_CLIENT_LIBS"

# Should we use named pthread library ?
AC_MSG_CHECKING("named thread libs:")
if test "$with_named_thread" != "no"
then
  LIBS="$with_named_thread $LIBS $with_named_thread"
  TOOLS_LIBS="$with_named_thread $TOOLS_LIBS $with_named_thread"
  with_posix_threads="yes"
  with_mit_threads="no"
  AC_MSG_RESULT("$with_named_thread")
else
  AC_MSG_RESULT("no")
  if test "$with_mit_threads" = "no"
  then
    # pthread_create is in standard libraries (As in BSDI 3.0)
    AC_MSG_CHECKING("for pthread_create in -libc");
    AC_TRY_LINK(
    [#include <pthread.h>],
    [ (void) pthread_create((pthread_t*) 0,(pthread_attr_t*) 0, 0, 0); ],
    with_posix_threads=yes, with_posix_threads=no)
    AC_MSG_RESULT("$with_posix_threads")
    if test "$with_posix_threads" = "no"
    then
      AC_MSG_CHECKING("for pthread_create in -lpthread");
      ac_save_LIBS="$LIBS"
      ac_save_TOOLS_LIBS="$TOOLS_LIBS"
      LIBS="$LIBS -lpthread"
      TOOLS_LIBS="$TOOLS_LIBS -lpthread"
      AC_TRY_LINK(
      [#include <pthread.h>],
      [ (void) pthread_create((pthread_t*) 0,(pthread_attr_t*) 0, 0, 0); ],
      with_posix_threads=yes, with_posix_threads=no)
      AC_MSG_RESULT("$with_posix_threads")
      if test "$with_posix_threads" = "no"
      then
        LIBS=" $ac_save_LIBS -lpthreads"
        TOOLS_LIBS=" $ac_save_TOOLS_LIBS -lpthreads"
        AC_MSG_CHECKING("for pthread_create in -lpthreads");
        AC_TRY_LINK(
        [#include <pthread.h>],
        [ pthread_create((pthread_t*) 0,(pthread_attr_t*) 0, 0, 0); ],
        with_posix_threads=yes, with_posix_threads=no)
        AC_MSG_RESULT("$with_posix_threads")
        if test "$with_posix_threads" = "no"
        then
	  # This is for FreeBSD
	  LIBS="$ac_save_LIBS -pthread"
	  TOOLS_LIBS="$ac_save_TOOLS_LIBS -pthread"
	  AC_MSG_CHECKING("for pthread_create in -pthread");
	  AC_TRY_LINK(
	  [#include <pthread.h>],
	  [ pthread_create((pthread_t*) 0,(pthread_attr_t*) 0, 0, 0); ],
	  with_posix_threads=yes, with_posix_threads=no)
          AC_MSG_RESULT("$with_posix_threads")
          if test "$with_posix_threads" = "no"
	  then
	    with_mit_threads="yes"
	    LIBS="$ac_save_LIBS"
	    TOOLS_LIBS="$ac_save_TOOLS_LIBS"
	  fi
	fi
      fi
    fi
  fi
fi

#---START: Used in for client configure
# Must be checked after, because strtok_r may be in -lpthread
# On AIX strtok_r is in libc_r

my_save_LIBS="$LIBS"
AC_CHECK_LIB(pthread,strtok_r)
LIBS="$my_save_LIBS"
if test "$ac_cv_lib_pthread_strtok_r" = "no"
then
  my_save_LIBS="$LIBS"
  AC_CHECK_LIB(c_r,strtok_r)
  case "$with_osf32_threads---$target_os" in
    # Don't keep -lc_r in LIBS; -pthread handles it magically
    yes---* | *---freebsd* ) LIBS="$my_save_LIBS" ;;
  esac
  AC_CHECK_FUNCS(strtok_r pthread_init)
else
  AC_CHECK_FUNCS(strtok_r)
fi
#---END:

# Check for dlopen, needed for user definable functions
# This must be checked after threads on AIX
# We only need this for mysqld, not for the clients.

my_save_LIBS="$LIBS"
LIBS=""
AC_CHECK_LIB(dl,dlopen)
LIBDL=$LIBS
LIBS="$my_save_LIBS"
AC_SUBST(LIBDL)

# System characteristics
AC_SYS_RESTARTABLE_SYSCALLS

# Build optimized or debug version ?
# First check for gcc and g++
if test "$ac_cv_prog_gcc" = "yes"
then
  DEBUG_CFLAGS="-g"
  DEBUG_OPTIMIZE_CC="-O"
  OPTIMIZE_CFLAGS="$MAX_C_OPTIMIZE"
else
  DEBUG_CFLAGS="-g"
  DEBUG_OPTIMIZE_CC=""
  OPTIMIZE_CFLAGS="-O"
fi
if test "$ac_cv_prog_cxx_g" = "yes"
then
  DEBUG_CXXFLAGS="-g"
  DEBUG_OPTIMIZE_CXX="-O"
  OPTIMIZE_CXXFLAGS="-O3"
else
  DEBUG_CXXFLAGS="-g"
  DEBUG_OPTIMIZE_CXX=""
  OPTIMIZE_CXXFLAGS="-O"
fi
AC_ARG_WITH(debug,
    [  --without-debug         Build a production version without debugging code],
    [with_debug=$withval],
    [with_debug=no])
if test "$with_debug" = "yes"
then
  # Medium debug.
  CFLAGS="$DEBUG_CFLAGS $DEBUG_OPTIMIZE_CC -DDBUG_ON -DSAFE_MUTEX $CFLAGS"
  CXXFLAGS="$DEBUG_CXXFLAGS $DEBUG_OPTIMIZE_CXX -DSAFE_MUTEX $CXXFLAGS"
elif test "$with_debug" = "full"
then
  # Full debug. Very slow in some cases
  CFLAGS="$DEBUG_CFLAGS -DDBUG_ON -DSAFE_MUTEX -DSAFEMALLOC $CFLAGS"
  CXXFLAGS="$DEBUG_CXXFLAGS -DSAFE_MUTEX -DSAFEMALLOC $CXXFLAGS"
else
  # Optimized version. No debug
  CFLAGS="$OPTIMIZE_CFLAGS -DDBUG_OFF $CFLAGS"
  CXXFLAGS="$OPTIMIZE_CXXFLAGS -DDBUG_OFF $CXXFLAGS"
fi

# Force static compilation to avoid linking probles/get more speed
AC_ARG_WITH(mysqld-ldflags,
    [  --with-mysqld-ldflags   Extra linking arguments for mysqld],
    [MYSQLD_EXTRA_LDFLAGS=$withval],
    [MYSQLD_EXTRA_LDFLAGS=])
AC_SUBST(MYSQLD_EXTRA_LDFLAGS)

AC_ARG_WITH(client-ldflags,
    [  --with-client-ldflags   Extra linking arguments for clients],
    [CLIENT_EXTRA_LDFLAGS=$withval],
    [CLIENT_EXTRA_LDFLAGS=])
AC_SUBST(CLIENT_EXTRA_LDFLAGS)

AC_ARG_WITH(lib-ccflags,
    [  --with-lib-ccflags      Extra CC options for libraries],
    [LIB_EXTRA_CCFLAGS=$withval],
    [LIB_EXTRA_CCFLAGS=])
AC_SUBST(LIB_EXTRA_CCFLAGS)

# Avoid stupid bug on some OS 
AC_ARG_WITH(low-memory,
    [  --with-low-memory       Try to use less memory to compile to avoid 
                          memory limitations.],
    [with_lowmem=$withval],
    [with_lowmem=no])
if test "$with_lowmem" = "yes"
then
  if test "$ac_cv_prog_gcc" = "yes" 
  then 
    LM_CFLAGS="-fno-inline"
  else
    LM_CFLAGS="-O0"
  fi
else
  LM_CFLAGS=""
fi
AC_SUBST(LM_CFLAGS)

AC_ARG_WITH(comment,
    [  --with-comment          Comment about compilation environment.],
    [with_comment=$withval],
    [with_comment=no])
if test "$with_comment" != "no"
then
  COMPILATION_COMMENT=$with_comment
else
  COMPILATION_COMMENT="Source distribution"
fi
AC_SUBST(COMPILATION_COMMENT)

AC_MSG_CHECKING("need of special linking flags")
if test "$IS_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes"
then
  LDFLAGS="$LDFLAGS -rdynamic"
  AC_MSG_RESULT("-rdynamic")
else
  AC_MSG_RESULT("none")
fi

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_OFF_T
AC_STRUCT_ST_RDEV
AC_HEADER_TIME
AC_STRUCT_TM
# AC_CHECK_SIZEOF return 0 when it does not find the size of a
# type. We want a error instead.
AC_CHECK_SIZEOF(char, 1)
if test "$ac_cv_sizeof_char" -eq 0
then
  AC_MSG_ERROR([No size for char type.
A likely cause for this could be that there isn't any
static libraries installed. You can verify this by checking if you have libm.a
in /lib, /usr/lib or some other standard place.  If this is the problem,
install the static libraries and try again.  If this isn't the problem,
examine config.log for possible errors.  If you want to report this, use
'scripts/mysqlbug' and include at least the last 20 rows from config.log!])
fi
AC_CHECK_SIZEOF(int, 4)
if test "$ac_cv_sizeof_int" -eq 0
then
  AC_MSG_ERROR("No size for int type.")
fi
AC_CHECK_SIZEOF(long, 4)
if test "$ac_cv_sizeof_long" -eq 0
then
  AC_MSG_ERROR("No size for long type.")
fi
AC_CHECK_SIZEOF(long long, 8)
if test "$ac_cv_sizeof_long_long" -eq 0
then
  AC_MSG_ERROR("MySQL needs a long long type.")
fi
# off_t is not a builtin type
MYSQL_CHECK_SIZEOF(off_t, 4)
if test "$ac_cv_sizeof_off_t" -eq 0
then
  AC_MSG_ERROR("MySQL needs a off_t type.")
fi
# This always gives a warning. Ignore it unless you are cross compiling
AC_C_BIGENDIAN
#---START: Used in for client configure
# Check base type of last arg to accept
MYSQL_TYPE_ACCEPT

#---END:
# Find where the stack goes
MYSQL_STACK_DIRECTION
# We want to skip alloca on irix unconditionally. It may work on some version..
MYSQL_FUNC_ALLOCA
# Do struct timespec have members tv_sec or ts_sec
MYSQL_TIMESPEC_TS
# Do we have the tzname variable
MYSQL_TZNAME
# Do the system files define ulong
MYSQL_CHECK_ULONG
# Do the system files define uchar
MYSQL_CHECK_UCHAR
# Do the system files define uint
MYSQL_CHECK_UINT
#Check for fp_except in ieeefp.h
MYSQL_CHECK_FP_EXCEPT
# Do the c++ compiler have a bool type
MYSQL_CXX_BOOL
# Check some common bugs with gcc 2.8.# on sparc
MYSQL_CHECK_LONGLONG_TO_FLOAT
if test "$ac_cv_conv_longlong_to_float" != "yes"
then
  AC_MSG_ERROR([Your compiler cannot convert a longlong value to a float!
If you are using gcc 2.8.# you should upgrade to egcs 1.0.3 or newer and try
again]);
fi
MYSQL_PTHREAD_YIELD

######################################################################
# For readline-4.0 (We simply move the mimimum amount of stuff from
# the readline configure.in here)

MAKE_SHELL=/bin/sh
AC_SUBST(MAKE_SHELL)

# Already-done: stdlib.h string.h unistd.h termios.h
AC_CHECK_HEADERS(varargs.h stdarg.h dirent.h locale.h ndir.h sys/dir.h \
 sys/file.h sys/ndir.h sys/ptem.h sys/pte.h sys/select.h sys/stream.h \
 sys/mman.h curses.h termcap.h termio.h termbits.h asm/termbits.h grp.h \
paths.h)

# Already-done: strcasecmp
AC_CHECK_FUNCS(lstat putenv select setenv setlocale strcoll tcgetattr)

AC_STAT_MACROS_BROKEN
MYSQL_SIGNAL_CHECK
MYSQL_CHECK_GETPW_FUNCS
MYSQL_HAVE_TIOCGWINSZ
MYSQL_HAVE_FIONREAD
MYSQL_HAVE_TIOCSTAT
MYSQL_STRUCT_DIRENT_D_INO
MYSQL_TYPE_SIGHANDLER
if test "$with_named_curses" = "no"
then
  MYSQL_CHECK_LIB_TERMCAP
else
  TERMCAP_LIB="$with_named_curses"
fi
AC_SUBST(TERMCAP_LIB)

# End of readline stuff
#########################################################################

dnl Checks for library functions.
AC_FUNC_MMAP
AC_TYPE_SIGNAL
MYSQL_TYPE_QSORT
AC_FUNC_UTIME_NULL
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(alarm bmove \
 chsize ftruncate rint finite fpsetmask fpresetsticky\
 cuserid fcntl fconvert poll \
 getrusage getpwuid getcwd getrlimit getwd index stpcpy locking longjmp \
 perror pread realpath readlink rename \
 socket strnlen madvise mkstemp \
 strtol strtoul strtoll strtoull snprintf tempnam thr_setconcurrency \
 gethostbyaddr_r gethostbyname_r getpwnam \
 bfill bzero bcmp strstr strpbrk strerror \
 tell atod memcpy memmove \
 setupterm strcasecmp sighold vidattr lrand48 localtime_r \
 sigset sigthreadmask pthread_sigmask pthread_setprio pthread_setprio_np \
 pthread_setschedparam pthread_attr_setprio pthread_attr_setschedparam \
 pthread_attr_create pthread_getsequence_np pthread_attr_setstacksize \
 pthread_condattr_create rwlock_init pthread_rwlock_rdlock \
 fchmod getpass getpassphrase initgroups mlockall)

# Sanity check: We chould not have any fseeko symbol unless
# large_file_support=yes
AC_CHECK_FUNCS(fseeko,
[if test "$large_file_support" = no -a "$IS_LINUX" = "true";
then
  AC_MSG_ERROR("Found fseeko symbol but large_file_support is not enabled!");
fi]
)

my_save_LIBS="$LIBS"
LIBS="$LIBS $LIBDL"
AC_CHECK_FUNCS(dlopen dlerror)
LIBS="$my_save_LIBS"

# Check definition of gethostbyaddr_r (glibc2 defines this with 8 arguments)
ac_save_CXXFLAGS="$CXXFLAGS"
AC_CACHE_CHECK([style of gethost* routines], mysql_cv_gethost_style,
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
#do not treat warnings as errors if we are linking agaist other libc
#this is to work around gcc not being permissive on non-system includes
#with respect to ANSI C++
if test "$ac_cv_prog_gxx" = "yes" -a "$with_other_libc" = "no" 
then
  CXXFLAGS="$CXXFLAGS -Werror"
fi
AC_TRY_COMPILE(
[#undef inline
#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>],
[int skr;
 struct hostent *foo = gethostbyaddr_r((const char *) 0,
  0, 0, (struct hostent *) 0, (char *) NULL,  0, &skr); return (foo == 0);],
mysql_cv_gethost_style=solaris, mysql_cv_gethost_style=other))
AC_LANG_RESTORE
CXXFLAGS="$ac_save_CXXFLAGS"
if test "$mysql_cv_gethost_style" = "solaris"
then
  AC_DEFINE(HAVE_SOLARIS_STYLE_GETHOST)
fi

#---START: Used in for client configure

# Check definition of gethostbyname_r (glibc2.0.100 is different from Solaris)
ac_save_CXXFLAGS="$CXXFLAGS"
AC_CACHE_CHECK([style of gethostname_r routines], mysql_cv_gethostname_style,
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
if test "$ac_cv_prog_gxx" = "yes" -a "$with_other_libc" = "no"
then
  CXXFLAGS="$CXXFLAGS -Werror"
fi
AC_TRY_COMPILE(
[#undef inline
#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>],
[int skr;

 skr = gethostbyname_r((const char *) 0,
  (struct hostent*) 0, (char*) 0, 0, (struct hostent **) 0, &skr);],
mysql_cv_gethostname_style=glibc2, mysql_cv_gethostname_style=other))
AC_LANG_RESTORE
CXXFLAGS="$ac_save_CXXFLAGS"
if test "$mysql_cv_gethostname_style" = "glibc2"
then
  AC_DEFINE(HAVE_GETHOSTBYNAME_R_GLIBC2_STYLE)
fi

# Check 3rd argument of getthostbyname_r
ac_save_CXXFLAGS="$CXXFLAGS"
AC_CACHE_CHECK([3 argument to gethostname_r routines], mysql_cv_gethostname_arg,
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
if test "$ac_cv_prog_gxx" = "yes" -a "$with_other_libc" = "no"
then
  CXXFLAGS="$CXXFLAGS -Werror"
fi
AC_TRY_COMPILE(
[#undef inline
#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>],
[int skr;

 skr = gethostbyname_r((const char *) 0, (struct hostent*) 0, (struct hostent_data*) 0);],
mysql_cv_gethostname_arg=hostent_data, mysql_cv_gethostname_arg=char))
AC_LANG_RESTORE
CXXFLAGS="$ac_save_CXXFLAGS"
if test "$mysql_cv_gethostname_arg" = "hostent_data"
then
  AC_DEFINE(HAVE_GETHOSTBYNAME_R_RETURN_INT)
fi


if test "$with_mit_threads" = "no"
then
  # Check definition of pthread_getspecific
  AC_CACHE_CHECK("args to pthread_getspecific", mysql_cv_getspecific_args,
  AC_TRY_COMPILE(
[#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#define _POSIX_PTHREAD_SEMANTICS 
#include <pthread.h> ],
[ void *pthread_getspecific(pthread_key_t key);
pthread_getspecific((pthread_key_t) NULL); ],
mysql_cv_getspecific_args=POSIX, mysql_cv_getspecific_args=other))
  if test "$mysql_cv_getspecific_args" = "other"
  then
    AC_DEFINE(HAVE_NONPOSIX_PTHREAD_GETSPECIFIC)
  fi

  # Check definition of pthread_mutex_init
  AC_CACHE_CHECK("args to pthread_mutex_init", mysql_cv_mutex_init_args,
  AC_TRY_COMPILE(
[#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#define _POSIX_PTHREAD_SEMANTICS 
#include <pthread.h> ],
[ 
  pthread_mutexattr_t attr;
  pthread_mutex_t mp;
  pthread_mutex_init(&mp,&attr); ],
mysql_cv_mutex_init_args=POSIX, mysql_cv_mutex_init_args=other))
  if test "$mysql_cv_mutex_init_args" = "other"
  then
    AC_DEFINE(HAVE_NONPOSIX_PTHREAD_MUTEX_INIT)
  fi
fi
#---END:

#---START: Used in for client configure
# Check definition of readdir_r
AC_CACHE_CHECK("args to readdir_r", mysql_cv_readdir_r,
AC_TRY_LINK(
[#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#define _POSIX_PTHREAD_SEMANTICS 
#include <pthread.h>
#include <dirent.h>],
[ int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result);
readdir_r((DIR *) NULL, (struct dirent *) NULL, (struct dirent **) NULL); ],
mysql_cv_readdir_r=POSIX, mysql_cv_readdir_r=other))
if test "$mysql_cv_readdir_r" = "POSIX"
then
  AC_DEFINE(HAVE_READDIR_R)
fi

# Check definition av posix sigwait()
AC_CACHE_CHECK("style of sigwait", mysql_cv_sigwait,
AC_TRY_LINK(
[#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#define _POSIX_PTHREAD_SEMANTICS 
#include <pthread.h>
#include <signal.h>],
[#ifndef _AIX
sigset_t set;
int sig;
sigwait(&set,&sig);
#endif],
mysql_cv_sigwait=POSIX, mysql_cv_sigwait=other))
if test "$mysql_cv_sigwait" = "POSIX"
then
  AC_DEFINE(HAVE_SIGWAIT)
fi

if test "$mysql_cv_sigwait" != "POSIX"
then
unset mysql_cv_sigwait
# Check definition av posix sigwait()
AC_CACHE_CHECK("style of sigwait", mysql_cv_sigwait,
AC_TRY_LINK(
[#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#define _POSIX_PTHREAD_SEMANTICS 
#include <pthread.h>
#include <signal.h>],
[sigset_t set;
int sig;
sigwait(&set);],
mysql_cv_sigwait=NONPOSIX, mysql_cv_sigwait=other))
if test "$mysql_cv_sigwait" = "NONPOSIX"
then
  AC_DEFINE(HAVE_NONPOSIX_SIGWAIT)
fi
fi
#---END:

# Check if pthread_attr_setscope() exists
AC_CACHE_CHECK("for pthread_attr_setscope", mysql_cv_pthread_attr_setscope,
AC_TRY_LINK(
[#if !defined(SCO) && !defined(__osf__)
#define _REENTRANT
#endif
#define _POSIX_PTHREAD_SEMANTICS 
#include <pthread.h>],
[pthread_attr_t thr_attr;
pthread_attr_setscope(&thr_attr,0);],
mysql_cv_pthread_attr_setscope=yes, mysql_cv_pthread_attr_setscope=no))
if test "$mysql_cv_pthread_attr_setscope" = "yes"
then
  AC_DEFINE(HAVE_PTHREAD_ATTR_SETSCOPE)
fi

# Check for bad includes
AC_MSG_CHECKING("can netinet files be included")
AC_TRY_COMPILE(
[#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>],
[ printf("1\n"); ],
netinet_inc=yes, netinet_inc=no)
if test "$netinet_inc" = "no"
then
  AC_DEFINE(HAVE_BROKEN_NETINET_INCLUDES)
fi
AC_MSG_RESULT("$netinet_inc")

# Only build client code?
AC_ARG_WITH(server,
    [  --without-server        Only build the client.],
    [with_server=$withval],
    [with_server=yes]
)

AC_ARG_WITH(embedded-server,
    [  --with-embedded-server  Build the embedded server (libmysqld).],
    [with_embedded_server=$withval],
    [with_embedded_server=no]
)

AC_ARG_WITH(extra-tools,
    [  --without-extra-tools   Skip building utilites in the tools directory.],
    [with_tools=$withval],
    [with_tools=yes]
)

tools_dirs=""
if test "$with_tools" = "yes"
then
  if test "$THREAD_SAFE_CLIENT" = "no"
  then
    echo "Warning: extra-tools disabled because --enable-thread-safe-client wasn't used"
  else
    tools_dirs="tools"
  fi
fi
AC_SUBST(tools_dirs)

#MYSQL_CHECK_CPU
MYSQL_CHECK_MYSQLFS
MYSQL_CHECK_VIO
MYSQL_CHECK_OPENSSL

libmysqld_dirs=
if test "$with_embedded_server" = "yes"
then
  libmysqld_dirs=libmysqld
  # We can't build embedded library without building the server, because
  # we depend on libmysys, libmystrings, libmyisam, etc.
  with_server=yes
fi
# XXX: We need to add @libmysqld_extra_libs@ (or whatever) so that
# mysql_config --libmysqld-libs will print out something like
# -L/path/to/lib/mysql -lmysqld -lmyisam -lmysys -lmystrings -ldbug ...
AC_SUBST([libmysqld_dirs])

# Shall we build the docs?
AC_ARG_WITH(docs,
    [  --without-docs          Skip building of the documentation.],
    [with_docs=$withval],
    [with_docs=yes]
)

if test "$with_docs" = "yes"
then
  docs_dirs="Docs"
else
  docs_dirs=""
fi
AC_SUBST(docs_dirs)

# Shall we build the bench code?
AC_ARG_WITH(bench,
    [  --without-bench         Skip building of the benchmark suite.],
    [with_bench=$withval],
    [with_bench=yes]
)

if test "$with_bench" = "yes"
then
  bench_dirs="sql-bench"
else
  bench_dirs=""
fi
bench_dirs="$bench_dirs mysql-test"
AC_SUBST(bench_dirs)

# Don't build readline, i have it already
AC_ARG_WITH(readline,
    [  --without-readline      Use system readline instead of bundled copy.],
    [ with_readline=$withval ],
    [ with_readline=yes ]
    )
if test "$with_readline" = "yes"
then
  readline_dir="readline"
  readline_link="\$(top_builddir)/readline/libreadline.a"
else
  # This requires readline to be in a standard place. Mosty for linux
  # there readline may be a shared library.
  readline_dir=""
  readline_link="-lreadline"
fi
AC_SUBST(readline_dir)
AC_SUBST(readline_link)

dnl In order to add new charset, you must add charset name to
dnl this CHARSETS_AVAILABLE list and sql/share/charsets/Index.
dnl If the character set uses strcoll or other special handling,
dnl you must also create strings/ctype-$charset_name.c

AC_DIVERT_PUSH(0)
CHARSETS_AVAILABLE="big5 cp1251 cp1257
                          croat czech danish dec8 dos estonia euc_kr gb2312 gbk
                          german1 greek hebrew hp8 hungarian koi8_ru koi8_ukr
                          latin1 latin1_de latin2 latin5 sjis swe7 tis620 ujis
                          usa7 win1250 win1251ukr"
CHARSETS_DEPRECATED="win1251"
DEFAULT_CHARSET=latin1
AC_DIVERT_POP

AC_ARG_WITH(charset,
  [  --with-charset=CHARSET  Use CHARSET by default (one of: $CHARSETS_AVAILABLE; Default is $DEFAULT_CHARSET)],
  [default_charset="$withval"],
  [default_charset="$DEFAULT_CHARSET"])

AC_ARG_WITH(extra-charsets,
  [  --with-extra-charsets=CHARSET[,CHARSET,...]
                          Use charsets in addition to default (none, complex,
                          all, or a list selected from the above sets)],
  [extra_charsets="$withval"],
  [extra_charsets="none"])

AC_MSG_CHECKING("character sets")

if test "$extra_charsets" = none; then
  CHARSETS=""
elif test "$extra_charsets" = complex; then
  CHARSETS=`/bin/ls -1 $srcdir/strings/ctype-*.c | \
                  sed -e 's;^.*/ctype-;;' -e 's;.c$;;'`
  CHARSETS=`echo $CHARSETS`     # get rid of line breaks
else
  if test "$extra_charsets" = all; then
    CHARSETS="$CHARSETS_AVAILABLE $CHARSETS_DEPRECATED"
  else
    CHARSETS=`echo $extra_charsets | sed -e 's/,/ /g'`
  fi
fi

# Ensure that the default_charset is first in CHARSETS
TMP_CHARSETS="$default_charset "
for i in $CHARSETS
do
  if test $i != $default_charset
  then
    TMP_CHARSETS="$TMP_CHARSETS $i"
  fi
done
CHARSETS=$TMP_CHARSETS

# Check if charsets are all good
for cs in $CHARSETS
do
  charset_okay=0
  for charset in $CHARSETS_AVAILABLE $CHARSETS_DEPRECATED
  do
    if test $cs = $charset; then charset_okay=1; fi
  done
  if test $charset_okay = 0;
  then
    AC_MSG_ERROR([Charset $cs not available. (Available $CHARSETS_AVAILABLE).
    See the Installation chapter in the Reference Manual.]);
  fi
done
  
CHARSET_SRCS=""
CHARSETS_NEED_SOURCE=""
CHARSET_DECLARATIONS=""
CHARSET_COMP_CS_INIT="CHARSET_INFO compiled_charsets[[]] = {"

want_use_strcoll=0
want_use_mb=0

index_file="$srcdir/sql/share/charsets/Index"

for c in $CHARSETS
do
  # get the charset number from $index_file
changequote(,)dnl
  subpat='^'"${c}"'[ 	][ 	]*\([0-9][0-9]*\)[^0-9]*$'
  number=`sed -e "/$subpat/!d" -e 's//\1/' $index_file`
changequote([,])dnl
  # some sanity checking....
  if test X"$number" = X
  then
    AC_MSG_ERROR([No number was found in $index_file for the $c character set.  This is a bug in the MySQL distribution.  Please report this message to bugs@lists.mysql.com.])
  fi

  cs_file="$srcdir/strings/ctype-$c.c"
  if test -f $cs_file
  then
    CHARSET_SRCS="${CHARSET_SRCS}ctype-$c.c "
    # get the strxfrm multiplier and max mb len from files
    subpat='^.*\\.configure\\. strxfrm_multiply_'"${c}"'='
    strx=`$AWK 'sub("'"$subpat"'", "") { print }' $cs_file`
    subpat='^.*\\.configure\\. mbmaxlen_'"${c}"'='
    maxl=`$AWK 'sub("'"$subpat"'", "") { print }' $cs_file`

    CHARSET_DECLARATIONS="$CHARSET_DECLARATIONS

/* declarations for the ${c} character set, filled in by configure */
extern uchar ctype_${c}[[]], to_lower_${c}[[]], to_upper_${c}[[]], sort_order_${c}[[]];"
  else
    CHARSETS_NEED_SOURCE="$CHARSETS_NEED_SOURCE $c"
    strx=''
    maxl=''
  fi

  CHARSET_COMP_CS_INIT="$CHARSET_COMP_CS_INIT

  /* this information is filled in by configure */
  {
    $number,    /* number */
    \"$c\",     /* name */
    ctype_${c},
    to_lower_${c},
    to_upper_${c},
    sort_order_${c},"

  if test -n "$strx"
  then
    want_use_strcoll=1

    CHARSET_DECLARATIONS="$CHARSET_DECLARATIONS
extern int     my_strcoll_${c}(const uchar *, const uchar *);
extern int     my_strxfrm_${c}(uchar *, const uchar *, int);
extern int     my_strnncoll_${c}(const uchar *, int, const uchar *, int);
extern int     my_strnxfrm_${c}(uchar *, const uchar *, int, int);
extern my_bool my_like_range_${c}(const char *, uint, pchar, uint,
                          char *, char *, uint *, uint *);"

    CHARSET_COMP_CS_INIT="$CHARSET_COMP_CS_INIT
    $strx,      /* strxfrm_multiply */
    my_strcoll_${c},
    my_strxfrm_${c},
    my_strnncoll_${c},
    my_strnxfrm_${c},
    my_like_range_${c},"
  else
    CHARSET_COMP_CS_INIT="$CHARSET_COMP_CS_INIT
    0,          /* strxfrm_multiply */
    NULL,       /* strcoll    */
    NULL,       /* strxfrm    */
    NULL,       /* strnncoll  */
    NULL,       /* strnxfrm   */
    NULL,       /* like_range */"
  fi

  if test -n "$maxl"
  then
    want_use_mb=1

    CHARSET_DECLARATIONS="$CHARSET_DECLARATIONS
extern int     ismbchar_${c}(const char *, const char *);
extern my_bool ismbhead_${c}(uint);
extern int     mbcharlen_${c}(uint);"


    CHARSET_COMP_CS_INIT="$CHARSET_COMP_CS_INIT
    $maxl,      /* mbmaxlen */
    ismbchar_${c},
    ismbhead_${c},
    mbcharlen_${c}"
  else
    CHARSET_COMP_CS_INIT="$CHARSET_COMP_CS_INIT
    0,          /* mbmaxlen  */
    NULL,       /* ismbchar  */
    NULL,       /* ismbhead  */
    NULL        /* mbcharlen */"
  fi
  CHARSET_COMP_CS_INIT="$CHARSET_COMP_CS_INIT
  },"
done

CHARSET_COMP_CS_INIT="$CHARSET_COMP_CS_INIT

  /* this information is filled in by configure */
  {
    0,          /* end-of-list marker */
    NullS,
    NULL,
    NULL,
    NULL,
    NULL,
    0,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    0,
    NULL,
    NULL,
    NULL
  }
};"


if test $want_use_strcoll = 1
then
  AC_DEFINE(USE_STRCOLL)
fi

if test $want_use_mb = 1
then
  AC_DEFINE(USE_MB)
  AC_DEFINE(USE_MB_IDENT)
fi

AC_SUBST(default_charset)
AC_SUBST(CHARSET_SRCS)
CHARSET_OBJS="`echo "$CHARSET_SRCS" | sed -e 's/\.c /.o /g'`"
AC_SUBST(CHARSET_OBJS)
AC_SUBST(CHARSETS_NEED_SOURCE)

dnl We can't use AC_SUBST because these substitutions are too long.
dnl I don't want to use sed, either, because there's a reason why
dnl autoconf breaks up the substitution commands.  So we'll just
dnl write to a file and #include it.
dnl AC_SUBST(CHARSET_DECLARATIONS)
dnl AC_SUBST(CHARSET_COMP_CS_INIT)
dnl sed -e "s%@CHARSET_DECLARATIONS@%$CHARSET_DECLARATIONS%g" \
dnl     -e "s%@CHARSET_COMP_CS_INIT@%$CHARSET_COMP_CS_INIT%g" \
dnl     $srcdir/strings/ctype.c.in > $srcdir/strings/ctype.c

cat <<EOF > $srcdir/strings/ctype_autoconf.c
/* This file is generated automatically by configure. */$CHARSET_DECLARATIONS

$CHARSET_COMP_CS_INIT
EOF

AC_MSG_RESULT([default: $default_charset; compiled in: $CHARSETS])


MYSQL_CHECK_ISAM
MYSQL_CHECK_BDB
MYSQL_CHECK_INNODB

# If we have threads generate some library functions and test programs
sql_server_dirs=
server_scripts=
thread_dirs=

dnl This probably should be cleaned up more - for now the threaded
dnl client is just using plain-old libs.
sql_client_dirs="libmysql client"
linked_client_targets="linked_libmysql_sources"
CLIENT_LIBS=$NON_THREADED_CLIENT_LIBS
if test "$THREAD_SAFE_CLIENT" != "no"
then
  sql_client_dirs="libmysql_r $sql_client_dirs"
  linked_client_targets="$linked_client_targets linked_libmysql_r_sources"
  AC_DEFINE(THREAD_SAFE_CLIENT)
fi
AC_SUBST(CLIENT_LIBS)
AC_SUBST(sql_client_dirs)
AC_SUBST(linked_client_targets)

if test "$with_server" = "yes"
then
  AC_DEFINE(THREAD)
  # Avoid _PROGRAMS names
  THREAD_LPROGRAMS="test_thr_alarm test_thr_lock"
  AC_SUBST(THREAD_LPROGRAMS)
  THREAD_LOBJECTS="thr_alarm.o thr_lock.o thr_mutex.o thr_rwlock.o my_pthread.o my_thr_init.o"
  AC_SUBST(THREAD_LOBJECTS)
  server_scripts="mysqld_safe mysql_install_db"
  sql_server_dirs="strings dbug mysys extra regex"


  #
  # Configuration for optional table handlers
  #

  if test X"$have_isam" != Xno
  then
    sql_server_dirs="$sql_server_dirs isam merge"
  fi

  if test X"$have_berkeley_db" != Xno; then
    if test X"$have_berkeley_db" != Xyes; then
      # we must build berkeley db from source
      sql_server_dirs="$sql_server_dirs $have_berkeley_db"

      echo "CONFIGURING FOR BERKELEY DB" 
      bdb_conf_flags=
      if test $with_debug = "yes"
      then
        bdb_conf_flags="$bdb_conf_flags --enable-debug --enable-diagnostic"
      fi
      # NOTICE: if you're compiling BDB, it needs to be a SUBDIR
      # of $srcdir (i.e., you can 'cd $srcdir/$bdb').  It won't
      # work otherwise.
      if test -d "$bdb"; then :
      else
	# This should only happen when doing a VPATH build
	echo "NOTICE: I have to make the BDB directory: `pwd`:$bdb"
	mkdir "$bdb" || exit 1
      fi
      if test -d "$bdb"/build_unix; then :
      else
	# This should only happen when doing a VPATH build
	echo "NOTICE: I have to make the build_unix directory: `pwd`:$bdb/build_unix"
	mkdir "$bdb/build_unix" || exit 1
      fi
      rel_srcdir=
      case "$srcdir" in
	/* ) rel_srcdir="$srcdir" ;;
	* )  rel_srcdir="../../$srcdir" ;;
      esac
      (cd $bdb/build_unix && \
       sh $rel_srcdir/$bdb/dist/configure $bdb_conf_flags) || \
	AC_MSG_ERROR([could not configure Berkeley DB])

dnl       echo "bdb = '$bdb'; inc = '$bdb_includes', lib = '$bdb_libs'"
      echo "END OF BERKELEY DB CONFIGURATION"
    fi

    AC_DEFINE(HAVE_BERKELEY_DB)
  else
    if test -d bdb; then :
    else
      mkdir bdb && mkdir bdb/build_unix
    fi

    if test -r bdb/build_unix/db.h; then :
    else
      cat <<EOF > bdb/build_unix/db.h

This file is a placeholder to fool make.  The way that automake
and GNU make work together causes some files to depend on this
header, even if we're not building with Berkeley DB.

Obviously, if this file *is* used, it'll break and hopefully we can find
out why this file was generated by ${top_srcdir}/configure instead of
the real db.h.

If you run into some problems because of this file, please use mysql_bug
to generate a bug report, and give the exact output of make and any
details you can think of.  Send the message to bugs@lists.mysql.com.

Thank you!

EOF
    fi
  fi

  if test X"$have_innodb" = Xyes
  then
    sql_server_dirs="$sql_server_dirs innobase"
    echo "CONFIGURING FOR INNODB" 
    if test ! -d "innobase"; then
        # This should only happen when doing a VPATH build
        echo "NOTICE: I have to make the Innobase directory: `pwd`/innobase"
	mkdir "innobase" || exit 1
    fi
    rel_srcdir=
    case "$srcdir" in
	/* ) rel_srcdir="$srcdir" ;;
	* )  rel_srcdir="../$srcdir" ;;
    esac
    (cd innobase && sh $rel_srcdir/innobase/configure) \
    || AC_MSG_ERROR([could not configure INNODB])

    echo "END OF INNODB CONFIGURATION"
  fi
  #
  # END of configuration for optional table handlers
  #
  sql_server_dirs="$sql_server_dirs myisam myisammrg heap vio sql"

  if test "$with_posix_threads" = "no" -o "$with_mit_threads" = "yes"
  then
    # MIT user level threads
    thread_dirs="mit-pthreads"
    AC_DEFINE(HAVE_mit_thread)
    MT_INCLUDES="-I\$(top_srcdir)/mit-pthreads/include"
    AC_SUBST(MT_INCLUDES)
    if test -n "$OVERRIDE_MT_LD_ADD"
    then 
      MT_LD_ADD="$OVERRIDE_MT_LD_ADD"
    else
      MT_LD_ADD="-L \$(top_srcdir)/mit-pthreads/obj/ -lpthread"
    fi
    AC_SUBST(MT_LD_ADD)
    echo ""
    echo "Configuring MIT Pthreads"
    # We will never install so installation paths are not needed.
    (cd mit-pthreads; sh ./configure)
    echo "End of MIT Pthreads configuration"
    echo ""
    LIBS="$MT_LD_ADD $LIBS"
  fi
fi
AC_SUBST(sql_server_dirs)
AC_SUBST(thread_dirs)
AC_SUBST(server_scripts)

#if test "$with_posix_threads" = "no" -o "$with_mit_threads" = "yes"
#then
  # MIT pthreads does now support connecting with unix sockets
  # AC_DEFINE(HAVE_THREADS_WITHOUT_SOCKETS)
#fi

# Some usefull subst
AC_SUBST(CC)
AC_SUBST(GXX)
#Remove TOOLS_LIBS, because this is included in LIBRARIES
#AC_SUBST(TOOLS_LIBS)

# Output results
AC_OUTPUT(Makefile extra/Makefile mysys/Makefile isam/Makefile \
 strings/Makefile regex/Makefile heap/Makefile \
 bdb/Makefile \
 myisam/Makefile myisammrg/Makefile \
 man/Makefile readline/Makefile vio/Makefile \
 libmysql_r/Makefile libmysqld/Makefile libmysqld/examples/Makefile \
 libmysql/Makefile client/Makefile \
 pstack/Makefile pstack/aout/Makefile sql/Makefile sql/share/Makefile \
 merge/Makefile dbug/Makefile scripts/Makefile \
 include/Makefile sql-bench/Makefile tools/Makefile \
 tests/Makefile Docs/Makefile support-files/Makefile \
 mysql-test/Makefile \
 include/mysql_version.h
 , , [
  test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
  rm -f $AVAILABLE_LANGUAGES_ERRORS_RULES
 ])

echo
echo "MySQL has a Web site at http://www.mysql.com/ which carries details on the"
echo "latest release, upcoming features, and other information to make your"
echo "work or play with MySQL more productive. There you can also find"
echo "information about mailing lists for MySQL discussion."
echo
echo "Remember to check the platform specific part in the reference manual for"
echo "hints about installing on your platfrom. See the Docs directory."
echo
# This text is checked in ./Do-compile to se that the configure finished.
echo "Thank you for choosing MySQL!"
echo