acinclude.m4

dnl @synopsis AX_CREATE_STDINT_H [( HEADER-TO-GENERATE [, HEDERS-TO-CHECK])]
dnl
dnl the "ISO C9X: 7.18 Integer types <stdint.h>" section requires the
dnl existence of an include file <stdint.h> that defines a set of 
dnl typedefs, especially uint8_t,int32_t,uintptr_t.
dnl Many older installations will not provide this file, but some will
dnl have the very same definitions in <inttypes.h>. In other enviroments
dnl we can use the inet-types in <sys/types.h> which would define the
dnl typedefs int8_t and u_int8_t respectivly.
dnl
dnl This macros will create a local "_stdint.h" or the headerfile given as 
dnl an argument. In many cases that file will just "#include <stdint.h>" 
dnl or "#include <inttypes.h>", while in other environments it will provide 
dnl the set of basic 'stdint's definitions/typedefs: 
dnl   int8_t,uint8_t,int16_t,uint16_t,int32_t,uint32_t,intptr_t,uintptr_t
dnl   int_least32_t.. int_fast32_t.. intmax_t
dnl which may or may not rely on the definitions of other files,
dnl or using the AC_COMPILE_CHECK_SIZEOF macro to determine the actual
dnl sizeof each type.
dnl
dnl if your header files require the stdint-types you will want to create an
dnl installable file mylib-int.h that all your other installable header
dnl may include. So if you have a library package named "mylib", just use
dnl      AX_CREATE_STDINT_H(mylib-int.h) 
dnl in configure.ac and go to install that very header file in Makefile.am
dnl along with the other headers (mylib.h) - and the mylib-specific headers
dnl can simply use "#include <mylib-int.h>" to obtain the stdint-types.
dnl
dnl Remember, if the system already had a valid <stdint.h>, the generated
dnl file will include it directly. No need for fuzzy HAVE_STDINT_H things...
dnl
dnl @, (status: used on new platforms) (see http://ac-archive.sf.net/gstdint/)
dnl @version $Id: acinclude.m4,v 1.4 2003/06/12 21:33:06 srw Exp $
dnl @author  Guido Draheim <guidod@gmx.de> 

AC_DEFUN([AX_CREATE_STDINT_H],
[# ------ AX CREATE STDINT H -------------------------------------
AC_MSG_CHECKING([for stdint types])
ac_stdint_h=`echo ifelse($1, , _stdint.h, $1)`
# try to shortcircuit - if the default include path of the compiler
# can find a "stdint.h" header then we assume that all compilers can.
AC_CACHE_VAL([ac_cv_header_stdint_t],[
old_CXXFLAGS="$CXXFLAGS" ; CXXFLAGS=""
old_CPPFLAGS="$CPPFLAGS" ; CPPFLAGS=""
old_CFLAGS="$CFLAGS"     ; CFLAGS=""
AC_TRY_COMPILE([#include <stdint.h>],[int_least32_t v = 0;],
[ac_cv_stdint_result="(assuming C99 compatible system)"
 ac_cv_header_stdint_t="stdint.h"; ],
[ac_cv_header_stdint_t=""])
CXXFLAGS="$old_CXXFLAGS"
CPPFLAGS="$old_CPPFLAGS"
CFLAGS="$old_CFLAGS" ])

v="... $ac_cv_header_stdint_h"
if test "$ac_stdint_h" = "stdint.h" ; then
 AC_MSG_RESULT([(are you sure you want them in ./stdint.h?)])
elif test "$ac_stdint_h" = "inttypes.h" ; then
 AC_MSG_RESULT([(are you sure you want them in ./inttypes.h?)])
elif test "_$ac_cv_header_stdint_t" = "_" ; then
 AC_MSG_RESULT([(putting them into $ac_stdint_h)$v])
else
 ac_cv_header_stdint="$ac_cv_header_stdint_t"
 AC_MSG_RESULT([$ac_cv_header_stdint (shortcircuit)])
fi

if test "_$ac_cv_header_stdint_t" = "_" ; then # can not shortcircuit..

dnl .....intro message done, now do a few system checks.....
dnl btw, all CHECK_TYPE macros do automatically "DEFINE" a type, therefore
dnl we use the autoconf implementation detail _AC CHECK_TYPE_NEW instead

inttype_headers=`echo $2 | sed -e 's/,/ /g'`

ac_cv_stdint_result="(no helpful system typedefs seen)"
AC_CACHE_CHECK([for stdint uintptr_t], [ac_cv_header_stdint_x],[
 ac_cv_header_stdint_x="" # the 1997 typedefs (inttypes.h)
  AC_MSG_RESULT([(..)])
  for i in stdint.h inttypes.h sys/inttypes.h $inttype_headers ; do
   unset ac_cv_type_uintptr_t 
   unset ac_cv_type_uint64_t
   _AC_CHECK_TYPE_NEW(uintptr_t,[ac_cv_header_stdint_x=$i],dnl
     continue,[#include <$i>])
   AC_CHECK_TYPE(uint64_t,[and64="/uint64_t"],[and64=""],[#include<$i>])
   ac_cv_stdint_result="(seen uintptr_t$and64 in $i)"
   break;
  done
  AC_MSG_CHECKING([for stdint uintptr_t])
 ])

if test "_$ac_cv_header_stdint_x" = "_" ; then
AC_CACHE_CHECK([for stdint uint32_t], [ac_cv_header_stdint_o],[
 ac_cv_header_stdint_o="" # the 1995 typedefs (sys/inttypes.h)
  AC_MSG_RESULT([(..)])
  for i in inttypes.h sys/inttypes.h stdint.h $inttype_headers ; do
   unset ac_cv_type_uint32_t
   unset ac_cv_type_uint64_t
   AC_CHECK_TYPE(uint32_t,[ac_cv_header_stdint_o=$i],dnl
     continue,[#include <$i>])
   AC_CHECK_TYPE(uint64_t,[and64="/uint64_t"],[and64=""],[#include<$i>])
   ac_cv_stdint_result="(seen uint32_t$and64 in $i)"
   break;
  done
  AC_MSG_CHECKING([for stdint uint32_t])
 ])
fi

if test "_$ac_cv_header_stdint_x" = "_" ; then
if test "_$ac_cv_header_stdint_o" = "_" ; then
AC_CACHE_CHECK([for stdint u_int32_t], [ac_cv_header_stdint_u],[
 ac_cv_header_stdint_u="" # the BSD typedefs (sys/types.h)
  AC_MSG_RESULT([(..)])
  for i in sys/types.h inttypes.h sys/inttypes.h $inttype_headers ; do
   unset ac_cv_type_u_int32_t
   unset ac_cv_type_u_int64_t
   AC_CHECK_TYPE(u_int32_t,[ac_cv_header_stdint_u=$i],dnl
     continue,[#include <$i>])
   AC_CHECK_TYPE(u_int64_t,[and64="/u_int64_t"],[and64=""],[#include<$i>])
   ac_cv_stdint_result="(seen u_int32_t$and64 in $i)"
   break;
  done
  AC_MSG_CHECKING([for stdint u_int32_t])
 ])
fi fi

dnl if there was no good C99 header file, do some typedef checks...
if test "_$ac_cv_header_stdint_x" = "_" ; then
   AC_MSG_CHECKING([for stdint datatype model])
   AC_MSG_RESULT([(..)])
   AC_COMPILE_CHECK_SIZEOF(char)
   AC_COMPILE_CHECK_SIZEOF(short)
   AC_COMPILE_CHECK_SIZEOF(int)
   AC_COMPILE_CHECK_SIZEOF(long)
   AC_COMPILE_CHECK_SIZEOF(void*)
   ac_cv_stdint_char_model=""
   ac_cv_stdint_char_model="$ac_cv_stdint_char_model$ac_cv_sizeof_char"
   ac_cv_stdint_char_model="$ac_cv_stdint_char_model$ac_cv_sizeof_short"
   ac_cv_stdint_char_model="$ac_cv_stdint_char_model$ac_cv_sizeof_int"
   ac_cv_stdint_long_model=""
   ac_cv_stdint_long_model="$ac_cv_stdint_long_model$ac_cv_sizeof_int"
   ac_cv_stdint_long_model="$ac_cv_stdint_long_model$ac_cv_sizeof_long"
   ac_cv_stdint_long_model="$ac_cv_stdint_long_model$ac_cv_sizeof_voidp"
   name="$ac_cv_stdint_long_model"
   case "$ac_cv_stdint_char_model/$ac_cv_stdint_long_model" in
    122/242)     name="$name,  IP16 (standard 16bit machine)" ;;
    122/244)     name="$name,  LP32 (standard 32bit mac/win)" ;;
    122/*)       name="$name        (unusual int16 model)" ;; 
    124/444)     name="$name, ILP32 (standard 32bit unixish)" ;;
    124/488)     name="$name,  LP64 (standard 64bit unixish)" ;;
    124/448)     name="$name, LLP64 (unusual  64bit unixish)" ;;
    124/*)       name="$name        (unusual int32 model)" ;; 
    128/888)     name="$name, ILP64 (unusual  64bit numeric)" ;;
    128/*)       name="$name        (unusual int64 model)" ;; 
    222/*|444/*) name="$name        (unusual dsptype)" ;;
     *)          name="$name        (very unusal model)" ;;
   esac
   AC_MSG_RESULT([combined for stdint datatype model...  $name])
fi

if test "_$ac_cv_header_stdint_x" != "_" ; then
   ac_cv_header_stdint="$ac_cv_header_stdint_x"
elif  test "_$ac_cv_header_stdint_o" != "_" ; then
   ac_cv_header_stdint="$ac_cv_header_stdint_o"
elif  test "_$ac_cv_header_stdint_u" != "_" ; then
   ac_cv_header_stdint="$ac_cv_header_stdint_u"
else
   ac_cv_header_stdint="stddef.h"
fi

AC_MSG_CHECKING([for extra inttypes in chosen header])
AC_MSG_RESULT([($ac_cv_header_stdint)])
dnl see if int_least and int_fast types are present in _this_ header.
unset ac_cv_type_int_least32_t
unset ac_cv_type_int_fast32_t
AC_CHECK_TYPE(int_least32_t,,,[#include <$ac_cv_header_stdint>])
AC_CHECK_TYPE(int_fast32_t,,,[#include<$ac_cv_header_stdint>])
AC_CHECK_TYPE(intmax_t,,,[#include <$ac_cv_header_stdint>])

fi # shortcircut to system "stdint.h"
# ------------------ PREPARE VARIABLES ------------------------------
if test "$GCC" = "yes" ; then
ac_cv_stdint_message="using gnu compiler "`$CC --version | head -1` 
else
ac_cv_stdint_message="using $CC"
fi

AC_MSG_RESULT([make use of $ac_cv_header_stdint in $ac_stdint_h dnl
$ac_cv_stdint_result])

# ----------------- DONE inttypes.h checks START header -------------
AC_CONFIG_COMMANDS([$ac_stdint_h],[
AC_MSG_NOTICE(creating $ac_stdint_h : $_ac_stdint_h)
ac_stdint=$tmp/_stdint.h

echo "#ifndef" $_ac_stdint_h >$ac_stdint
echo "#define" $_ac_stdint_h "1" >>$ac_stdint
echo "#ifndef" _GENERATED_STDINT_H >>$ac_stdint
echo "#define" _GENERATED_STDINT_H '"'$PACKAGE $VERSION'"' >>$ac_stdint
echo "/* generated $ac_cv_stdint_message */" >>$ac_stdint
if test "_$ac_cv_header_stdint_t" != "_" ; then 
echo "#define _STDINT_HAVE_STDINT_H" "1" >>$ac_stdint
fi

cat >>$ac_stdint <<STDINT_EOF

/* ................... shortcircuit part ........................... */

#if defined HAVE_STDINT_H || defined _STDINT_HAVE_STDINT_H
#include <stdint.h>
#else
#include <stddef.h>

/* .................... configured part ............................ */

STDINT_EOF

echo "/* whether we have a C99 compatible stdint header file */" >>$ac_stdint
if test "_$ac_cv_header_stdint_x" != "_" ; then
  ac_header="$ac_cv_header_stdint_x"
  echo "#define _STDINT_HEADER_INTPTR" '"'"$ac_header"'"' >>$ac_stdint
else
  echo "/* #undef _STDINT_HEADER_INTPTR */" >>$ac_stdint
fi

echo "/* whether we have a C96 compatible inttypes header file */" >>$ac_stdint
if  test "_$ac_cv_header_stdint_o" != "_" ; then
  ac_header="$ac_cv_header_stdint_o"
  echo "#define _STDINT_HEADER_UINT32" '"'"$ac_header"'"' >>$ac_stdint
else
  echo "/* #undef _STDINT_HEADER_UINT32 */" >>$ac_stdint
fi

echo "/* whether we have a BSD compatible inet types header */" >>$ac_stdint
if  test "_$ac_cv_header_stdint_u" != "_" ; then
  ac_header="$ac_cv_header_stdint_u"
  echo "#define _STDINT_HEADER_U_INT32" '"'"$ac_header"'"' >>$ac_stdint
else
  echo "/* #undef _STDINT_HEADER_U_INT32 */" >>$ac_stdint
fi

echo "" >>$ac_stdint

if test "_$ac_header" != "_" ; then if test "$ac_header" != "stddef.h" ; then
  echo "#include <$ac_header>" >>$ac_stdint
  echo "" >>$ac_stdint
fi fi

echo "/* which 64bit typedef has been found */" >>$ac_stdint
if test "$ac_cv_type_uint64_t" = "yes" ; then
echo "#define   _STDINT_HAVE_UINT64_T" "1"  >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_UINT64_T */" >>$ac_stdint
fi
if test "$ac_cv_type_u_int64_t" = "yes" ; then
echo "#define   _STDINT_HAVE_U_INT64_T" "1"  >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_U_INT64_T */" >>$ac_stdint
fi
echo "" >>$ac_stdint

echo "/* which type model has been detected */" >>$ac_stdint
if test "_$ac_cv_stdint_char_model" != "_" ; then
echo "#define   _STDINT_CHAR_MODEL" "$ac_cv_stdint_char_model" >>$ac_stdint
echo "#define   _STDINT_LONG_MODEL" "$ac_cv_stdint_long_model" >>$ac_stdint
else
echo "/* #undef _STDINT_CHAR_MODEL // skipped */" >>$ac_stdint
echo "/* #undef _STDINT_LONG_MODEL // skipped */" >>$ac_stdint
fi
echo "" >>$ac_stdint

echo "/* whether int_least types were detected */" >>$ac_stdint
if test "$ac_cv_type_int_least32_t" = "yes"; then
echo "#define   _STDINT_HAVE_INT_LEAST32_T" "1"  >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_INT_LEAST32_T */" >>$ac_stdint
fi
echo "/* whether int_fast types were detected */" >>$ac_stdint
if test "$ac_cv_type_int_fast32_t" = "yes"; then
echo "#define   _STDINT_HAVE_INT_FAST32_T" "1" >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_INT_FAST32_T */" >>$ac_stdint
fi
echo "/* whether intmax_t type was detected */" >>$ac_stdint
if test "$ac_cv_type_intmax_t" = "yes"; then
echo "#define   _STDINT_HAVE_INTMAX_T" "1" >>$ac_stdint
else
echo "/* #undef _STDINT_HAVE_INTMAX_T */" >>$ac_stdint
fi
echo "" >>$ac_stdint

  cat >>$ac_stdint <<STDINT_EOF
/* .................... detections part ............................ */

/* whether we need to define bitspecific types from compiler base types */
#ifndef _STDINT_HEADER_INTPTR
#ifndef _STDINT_HEADER_UINT32
#ifndef _STDINT_HEADER_U_INT32
#define _STDINT_NEED_INT_MODEL_T
#else
#define _STDINT_HAVE_U_INT_TYPES
#endif
#endif
#endif

#ifdef _STDINT_HAVE_U_INT_TYPES
#undef _STDINT_NEED_INT_MODEL_T
#endif

#ifdef  _STDINT_CHAR_MODEL
#if     _STDINT_CHAR_MODEL+0 == 122 || _STDINT_CHAR_MODEL+0 == 124
#ifndef _STDINT_BYTE_MODEL
#define _STDINT_BYTE_MODEL 12
#endif
#endif
#endif

#ifndef _STDINT_HAVE_INT_LEAST32_T
#define _STDINT_NEED_INT_LEAST_T
#endif

#ifndef _STDINT_HAVE_INT_FAST32_T
#define _STDINT_NEED_INT_FAST_T
#endif

#ifndef _STDINT_HEADER_INTPTR
#define _STDINT_NEED_INTPTR_T
#ifndef _STDINT_HAVE_INTMAX_T
#define _STDINT_NEED_INTMAX_T
#endif
#endif


/* .................... definition part ............................ */

/* some system headers have good uint64_t */
#ifndef _HAVE_UINT64_T
#if     defined _STDINT_HAVE_UINT64_T  || defined HAVE_UINT64_T
#define _HAVE_UINT64_T
#elif   defined _STDINT_HAVE_U_INT64_T || defined HAVE_U_INT64_T
#define _HAVE_UINT64_T
typedef u_int64_t uint64_t;
#endif
#endif

#ifndef _HAVE_UINT64_T
/* .. here are some common heuristics using compiler runtime specifics */
#if defined __STDC_VERSION__ && defined __STDC_VERSION__ >= 199901L
#define _HAVE_UINT64_T
typedef long long int64_t;
typedef unsigned long long uint64_t;

#elif !defined __STRICT_ANSI__
#if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__
#define _HAVE_UINT64_T
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;

#elif defined __GNUC__ || defined __MWERKS__ || defined __ELF__
/* note: all ELF-systems seem to have loff-support which needs 64-bit */
#if !defined _NO_LONGLONG
#define _HAVE_UINT64_T
typedef long long int64_t;
typedef unsigned long long uint64_t;
#endif

#elif defined __alpha || (defined __mips && defined _ABIN32)
#if !defined _NO_LONGLONG
typedef long int64_t;
typedef unsigned long uint64_t;
#endif
  /* compiler/cpu type to define int64_t */
#endif
#endif
#endif

#if defined _STDINT_HAVE_U_INT_TYPES
/* int8_t int16_t int32_t defined by inet code, redeclare the u_intXX types */
typedef u_int8_t uint8_t;
typedef u_int16_t uint16_t;
typedef u_int32_t uint32_t;

/* glibc compatibility */
#ifndef __int8_t_defined
#define __int8_t_defined
#endif
#endif

#ifdef _STDINT_NEED_INT_MODEL_T
/* we must guess all the basic types. Apart from byte-adressable system, */
/* there a few 32-bit-only dsp-systems that we guard with BYTE_MODEL 8-} */
/* (btw, those nibble-addressable systems are way off, or so we assume) */

dnl   /* have a look at "64bit and data size neutrality" at */
dnl   /* http://unix.org/version2/whatsnew/login_64bit.html */
dnl   /* (the shorthand "ILP" types always have a "P" part) */

#if defined _STDINT_BYTE_MODEL
#if _STDINT_LONG_MODEL+0 == 242
/* 2:4:2 =  IP16 = a normal 16-bit system                */
typedef unsigned char   uint8_t;
typedef unsigned short  uint16_t;
typedef unsigned long   uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef          char    int8_t;
typedef          short   int16_t;
typedef          long    int32_t;
#endif
#elif _STDINT_LONG_MODEL+0 == 244 || _STDINT_LONG_MODEL == 444
/* 2:4:4 =  LP32 = a 32-bit system derived from a 16-bit */
/* 4:4:4 = ILP32 = a normal 32-bit system                */
typedef unsigned char   uint8_t;
typedef unsigned short  uint16_t;
typedef unsigned int    uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef          char    int8_t;
typedef          short   int16_t;
typedef          int     int32_t;
#endif
#elif _STDINT_LONG_MODEL+0 == 484 || _STDINT_LONG_MODEL+0 == 488
/* 4:8:4 =  IP32 = a 32-bit system prepared for 64-bit    */
/* 4:8:8 =  LP64 = a normal 64-bit system                 */
typedef unsigned char   uint8_t;
typedef unsigned short  uint16_t;
typedef unsigned int    uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef          char    int8_t;
typedef          short   int16_t;
typedef          int     int32_t;
#endif
/* this system has a "long" of 64bit */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef unsigned long   uint64_t;
typedef          long    int64_t;
#endif
#elif _STDINT_LONG_MODEL+0 == 448
/*      LLP64   a 64-bit system derived from a 32-bit system */
typedef unsigned char   uint8_t;
typedef unsigned short  uint16_t;
typedef unsigned int    uint32_t;
#ifndef __int8_t_defined
#define __int8_t_defined
typedef          char    int8_t;
typedef          short   int16_t;
typedef          int     int32_t;
#endif
/* assuming the system has a "long long" */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef unsigned long long uint64_t;
typedef          long long  int64_t;
#endif
#else
#define _STDINT_NO_INT32_T
#endif
#else
#define _STDINT_NO_INT8_T
#define _STDINT_NO_INT32_T
#endif
#endif

/*
 * quote from SunOS-5.8 sys/inttypes.h:
 * Use at your own risk.  As of February 1996, the committee is squarely
 * behind the fixed sized types; the "least" and "fast" types are still being
 * discussed.  The probability that the "fast" types may be removed before
 * the standard is finalized is high enough that they are not currently
 * implemented.
 */

#if defined _STDINT_NEED_INT_LEAST_T
typedef  int8_t    int_least8_t;
typedef  int16_t   int_least16_t;
typedef  int32_t   int_least32_t;
#ifdef _HAVE_UINT64_T
typedef  int64_t   int_least64_t;
#endif

typedef uint8_t   uint_least8_t;
typedef uint16_t  uint_least16_t;
typedef uint32_t  uint_least32_t;
#ifdef _HAVE_UINT64_T
typedef uint64_t  uint_least64_t;
#endif
  /* least types */
#endif

#if defined _STDINT_NEED_INT_FAST_T
typedef  int8_t    int_fast8_t; 
typedef  int       int_fast16_t;
typedef  int32_t   int_fast32_t;
#ifdef _HAVE_UINT64_T
typedef  int64_t   int_fast64_t;
#endif

typedef uint8_t   uint_fast8_t; 
typedef unsigned  uint_fast16_t;
typedef uint32_t  uint_fast32_t;
#ifdef _HAVE_UINT64_T
typedef uint64_t  uint_fast64_t;
#endif
  /* fast types */
#endif

#ifdef _STDINT_NEED_INTMAX_T
#ifdef _HAVE_UINT64_T
typedef  int64_t       intmax_t;
typedef uint64_t      uintmax_t;
#else
typedef          long  intmax_t;
typedef unsigned long uintmax_t;
#endif
#endif

#ifdef _STDINT_NEED_INTPTR_T
#ifndef __intptr_t_defined
#define __intptr_t_defined
/* we encourage using "long" to store pointer values, never use "int" ! */
#if   _STDINT_LONG_MODEL+0 == 242 || _STDINT_LONG_MODEL+0 == 484
typedef  unsinged int   uintptr_t;
typedef           int    intptr_t;
#elif _STDINT_LONG_MODEL+0 == 244 || _STDINT_LONG_MODEL+0 == 444
typedef  unsigned long  uintptr_t;
typedef           long   intptr_t;
#elif _STDINT_LONG_MODEL+0 == 448 && defined _HAVE_UINT64_T
typedef        uint64_t uintptr_t;
typedef         int64_t  intptr_t;
#else /* matches typical system types ILP32 and LP64 - but not IP16 or LLP64 */
typedef  unsigned long  uintptr_t;
typedef           long   intptr_t;
#endif
#endif
#endif

  /* shortcircuit*/
#endif
  /* once */
#endif
#endif
STDINT_EOF
    if cmp -s $ac_stdint_h $ac_stdint 2>/dev/null; then
      AC_MSG_NOTICE([$ac_stdint_h is unchanged])
    else
      ac_dir=`AS_DIRNAME(["$ac_stdint_h"])`
      AS_MKDIR_P(["$ac_dir"])
      rm -f $ac_stdint_h
      mv $ac_stdint $ac_stdint_h
    fi
],[# variables for create stdint.h replacement
PACKAGE="$PACKAGE"
VERSION="$VERSION"
ac_stdint_h="$ac_stdint_h"
_ac_stdint_h=AS_TR_CPP(_$PACKAGE-$ac_stdint_h)
ac_cv_stdint_message="$ac_cv_stdint_message"
ac_cv_header_stdint_t="$ac_cv_header_stdint_t"
ac_cv_header_stdint_x="$ac_cv_header_stdint_x"
ac_cv_header_stdint_o="$ac_cv_header_stdint_o"
ac_cv_header_stdint_u="$ac_cv_header_stdint_u"
ac_cv_type_uint64_t="$ac_cv_type_uint64_t"
ac_cv_type_u_int64_t="$ac_cv_type_u_int64_t"
ac_cv_stdint_char_model="$ac_cv_stdint_char_model"
ac_cv_stdint_long_model="$ac_cv_stdint_long_model"
ac_cv_type_int_least32_t="$ac_cv_type_int_least32_t"
ac_cv_type_int_fast32_t="$ac_cv_type_int_fast32_t"
ac_cv_type_intmax_t="$ac_cv_type_intmax_t"
])
])
dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_compile_check_sizeof.html
dnl
AC_DEFUN([AC_COMPILE_CHECK_SIZEOF],
[changequote(<<, >>)dnl
dnl The name to #define.
define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
dnl The cache variable name.
define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
changequote([, ])dnl
AC_MSG_CHECKING(size of $1)
AC_CACHE_VAL(AC_CV_NAME,
[for ac_size in 4 8 1 2 16 $2 ; do # List sizes in rough order of prevalence.
  AC_TRY_COMPILE([#include "confdefs.h"
#include <sys/types.h>
$2
], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size)
  if test x$AC_CV_NAME != x ; then break; fi
done
])
if test x$AC_CV_NAME = x ; then
  AC_MSG_ERROR([cannot determine a size for $1])
fi
AC_MSG_RESULT($AC_CV_NAME)
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
])
dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/acx_pthread.html
dnl
AC_DEFUN([ACX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_LANG_SAVE
AC_LANG_C
acx_pthread_ok=no

# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on True64 or Sequent).
# It gets checked for in the link test anyway.

# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
        save_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
        save_LIBS="$LIBS"
        LIBS="$PTHREAD_LIBS $LIBS"
        AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
        AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
        AC_MSG_RESULT($acx_pthread_ok)
        if test x"$acx_pthread_ok" = xno; then
                PTHREAD_LIBS=""
                PTHREAD_CFLAGS=""
        fi
        LIBS="$save_LIBS"
        CFLAGS="$save_CFLAGS"
fi
if test x"$PTHREAD_LIBS$PTHREAD_CXXFLAGS" != x; then
        save_CXXFLAGS="$CXXFLAGS"
        CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
        save_LIBS="$LIBS"
        LIBS="$PTHREAD_LIBS $LIBS"
        AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CXXFLAGS=$PTHREAD_CXXFLAGS])
        AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
        AC_MSG_RESULT($acx_pthread_ok)
        if test x"$acx_pthread_ok" = xno; then
                PTHREAD_LIBS=""
                PTHREAD_CXXFLAGS=""
        fi
        LIBS="$save_LIBS"
        CXXFLAGS="$save_CXXFLAGS"
fi

# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).

# Create a list of thread flags to try.  Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all.

acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt"

# The ordering *is* (sometimes) important.  Some notes on the
# individual items follow:

# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
#       other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
#      doesn't hurt to check since this sometimes defines pthreads too;
#      also defines -D_REENTRANT)
# pthread: Linux, etcetera
# --thread-safe: KAI C++

case "${host_cpu}-${host_os}" in
        *solaris*)

        # On Solaris (at least, for some versions), libc contains stubbed
        # (non-functional) versions of the pthreads routines, so link-based
        # tests will erroneously succeed.  (We need to link with -pthread or
        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
        # a function called by this macro, so we could check for that, but
        # who knows whether they'll stub that too in a future libc.)  So,
        # we'll just look for -pthreads and -lpthread first:

        acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags"
        ;;
esac

if test x"$acx_pthread_ok" = xno; then
for flag in $acx_pthread_flags; do

        case $flag in
                none)
                AC_MSG_CHECKING([whether pthreads work without any flags])
                ;;

                -*)
                AC_MSG_CHECKING([whether pthreads work with $flag])
                PTHREAD_CFLAGS="$flag"
                PTHREAD_CXXFLAGS="$flag"
                ;;

                *)
                AC_MSG_CHECKING([for the pthreads library -l$flag])
                PTHREAD_LIBS="-l$flag"
                ;;
        esac

        save_LIBS="$LIBS"
        save_CFLAGS="$CFLAGS"
        save_CXXFLAGS="$CXXFLAGS"
        LIBS="$PTHREAD_LIBS $LIBS"
        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
        CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"

        # Check for various functions.  We must include pthread.h,
        # since some functions may be macros.  (On the Sequent, we
        # need a special flag -Kthread to make this header compile.)
        # We check for pthread_join because it is in -lpthread on IRIX
        # while pthread_create is in libc.  We check for pthread_attr_init
        # due to DEC craziness with -lpthreads.  We check for
        # pthread_cleanup_push because it is one of the few pthread
        # functions on Solaris that doesn't have a non-functional libc stub.
        # We try pthread_create on general principles.
        AC_TRY_LINK([#include <pthread.h>],
                    [pthread_t th; pthread_join(th, 0);
                     pthread_attr_init(0); pthread_cleanup_push(0, 0);
                     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
                    [acx_pthread_ok=yes])

        LIBS="$save_LIBS"
        CFLAGS="$save_CFLAGS"
        CXXFLAGS="$save_CXXFLAGS"

        AC_MSG_RESULT($acx_pthread_ok)
        if test "x$acx_pthread_ok" = xyes; then
                break;
        fi

        PTHREAD_LIBS=""
        PTHREAD_CFLAGS=""
        PTHREAD_CXXFLAGS=""
done
fi

# Various other checks:
if test "x$acx_pthread_ok" = xyes; then
        save_LIBS="$LIBS"
        LIBS="$PTHREAD_LIBS $LIBS"
        save_CFLAGS="$CFLAGS"
        save_CXXFLAGS="$CXXFLAGS"
        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
        CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"

        # Detect AIX lossage: threads are created detached by default
        # and the JOINABLE attribute has a nonstandard name (UNDETACHED).
        AC_MSG_CHECKING([for joinable pthread attribute])
        AC_TRY_LINK([#include <pthread.h>],
                    [int attr=PTHREAD_CREATE_JOINABLE;],
                    ok=PTHREAD_CREATE_JOINABLE, ok=unknown)
        if test x"$ok" = xunknown; then
                AC_TRY_LINK([#include <pthread.h>],
                            [int attr=PTHREAD_CREATE_UNDETACHED;],
                            ok=PTHREAD_CREATE_UNDETACHED, ok=unknown)
        fi
        if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then
                AC_DEFINE(PTHREAD_CREATE_JOINABLE, $ok,
                          [Define to the necessary symbol if this constant
                           uses a non-standard name on your system.])
        fi
        AC_MSG_RESULT(${ok})
        if test x"$ok" = xunknown; then
                AC_MSG_WARN([we do not know how to create joinable pthreads])
        fi

        AC_MSG_CHECKING([if more special flags are required for pthreads])
        flag=no
        case "${host_cpu}-${host_os}" in
                *-aix* | *-freebsd*)     flag="-D_THREAD_SAFE";;
                *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
        esac
        AC_MSG_RESULT(${flag})
        if test "x$flag" != xno; then
                PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
                PTHREAD_CXXFLAGS="$flag $PTHREAD_CXXFLAGS"
        fi

        LIBS="$save_LIBS"
        CFLAGS="$save_CFLAGS"
        CXXFLAGS="$save_CXXFLAGS"

        # More AIX lossage: must compile with cc_r
        AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC})
else
        PTHREAD_CC="$CC"
fi

AC_SUBST(PTHREAD_LIBS)
AC_SUBST(PTHREAD_CFLAGS)
AC_SUBST(PTHREAD_CXXFLAGS)
AC_SUBST(PTHREAD_CC)

# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$acx_pthread_ok" = xyes; then
        ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
        :
else
        acx_pthread_ok=no
        $2
fi
AC_LANG_RESTORE
])dnl ACX_PTHREAD