aclocal.m4

这是一个完全开放的

# aclocal.m4 generated automatically by aclocal 1.6.3 -*- Autoconf -*-

# Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
# Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.

dnl ******** AC_COMPILE_CHECK_SIZEOF
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 ******** AC_CREATE_STDINT_H
dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_create_stdint_h.html
dnl
AC_DEFUN([AC_CREATE_STDINT_H],
[# ------ AC CREATE STDINT H -------------------------------------
AC_MSG_CHECKING([for stdint-types....])
ac_stdint_h=`echo ifelse($1, , _stdint.h, $1)`
if test "$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?)")
else
 AC_MSG_RESULT("(putting them into $ac_stdint_h)")
fi

inttype_headers=`echo inttypes.h sys/inttypes.h sys/inttypes.h $2 \
| sed -e 's/,/ /g'`

 ac_cv_header_stdint_x="no-file"
 ac_cv_header_stdint_o="no-file"
 ac_cv_header_stdint_u="no-file"
 for i in stdint.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 <$i>])
   AC_CHECK_TYPE(uint64_t,[and64="(uint64_t too)"],[and64=""],[#include<$i>])
   AC_MSG_RESULT(... seen our uintptr_t in $i $and64)
   break;
 done
 if test "$ac_cv_header_stdint_x" = "no-file" ; then
 for i in 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 <$i>])
   AC_CHECK_TYPE(uint64_t,[and64="(uint64_t too)"],[and64=""],[#include<$i>])
   AC_MSG_RESULT(... seen our uint32_t in $i $and64)
   break;
 done
 if test "$ac_cv_header_stdint_o" = "no-file" ; then
 for i in sys/types.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 <$i>])
   AC_CHECK_TYPE(uint64_t,[and64="(u_int64_t too)"],[and64=""],[#include<$i>])
   AC_MSG_RESULT(... seen our u_int32_t in $i $and64)
   break;
 done
 fi
 fi

# ----------------- DONE inttypes.h checks MAYBE C basic types --------

if test "$ac_cv_header_stdint_x" = "no-file" ; then
   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_header_stdint_test="yes"
else
   ac_cv_header_stdint_test="no"
fi

# ----------------- DONE inttypes.h checks START header -------------
_ac_stdint_h=AS_TR_CPP(_$ac_stdint_h)
AC_MSG_RESULT(creating $ac_stdint_h : $_ac_stdint_h)
echo "#ifndef" $_ac_stdint_h >$ac_stdint_h
echo "#define" $_ac_stdint_h "1" >>$ac_stdint_h
echo "#ifndef" _GENERATED_STDINT_H >>$ac_stdint_h
echo "#define" _GENERATED_STDINT_H '"'$PACKAGE $VERSION'"' >>$ac_stdint_h
if test "$GCC" = "yes" ; then
  echo "/* generated using a gnu compiler version" `$CC --version` "*/" \
  >>$ac_stdint_h
else
  echo "/* generated using $CC */" >>$ac_stdint_h
fi
echo "" >>$ac_stdint_h

if test "$ac_cv_header_stdint_x" != "no-file" ; then
   ac_cv_header_stdint="$ac_cv_header_stdint_x"
elif  test "$ac_cv_header_stdint_o" != "no-file" ; then
   ac_cv_header_stdint="$ac_cv_header_stdint_o"
elif  test "$ac_cv_header_stdint_u" != "no-file" ; then
   ac_cv_header_stdint="$ac_cv_header_stdint_u"
else
   ac_cv_header_stdint="stddef.h"
fi

# ----------------- See if int_least and int_fast types are present
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>])

if test "$ac_cv_header_stdint" != "stddef.h" ; then
if test "$ac_cv_header_stdint" != "stdint.h" ; then
AC_MSG_RESULT(..adding include stddef.h)
   echo "#include <stddef.h>" >>$ac_stdint_h
fi ; fi
AC_MSG_RESULT(..adding include $ac_cv_header_stdint)
   echo "#include <$ac_cv_header_stdint>" >>$ac_stdint_h
echo "" >>$ac_stdint_h

# ----------------- DONE header START basic int types -------------
if test "$ac_cv_header_stdint_x" = "no-file" ; then
   AC_MSG_RESULT(... need to look at C basic types)
dnl ac_cv_header_stdint_test="yes" # moved up before creating the file
else
   AC_MSG_RESULT(... seen good stdint.h inttypes)
dnl ac_cv_header_stdint_test="no"  # moved up before creating the file
fi

if test "$ac_cv_header_stdint_u" != "no-file" ; then
   AC_MSG_RESULT(... seen bsd/sysv typedefs)
   cat >>$ac_stdint_h <<EOF

/* 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;
EOF
    cat >>$ac_stdint_h <<EOF

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

ac_cv_sizeof_x="$ac_cv_sizeof_char:$ac_cv_sizeof_short"
ac_cv_sizeof_X="$ac_cv_sizeof_x:$ac_cv_sizeof_int"
ac_cv_sizeof_X="$ac_cv_sizeof_X:$ac_cv_sizeof_voidp:$ac_cv_sizeof_long"
if test "$ac_cv_header_stdint" = "stddef.h" ; then
#   we must guess all the basic types. Apart from byte-adressable system,
# there a few 32-bit-only dsp-systems. nibble-addressable systems are way off.
    cat >>$ac_stdint_h <<EOF
/* ------------ BITSPECIFIC INTTYPES SECTION --------------- */
EOF
    t="typedefs for a"
    case "$ac_cv_sizeof_X" in
     1:2:2:2:4) AC_MSG_RESULT(..adding $t normal 16-bit system)
                cat >>$ac_stdint_h <<EOF
/*              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
EOF
;;
     1:2:2:4:4) AC_MSG_RESULT(..adding $t 32-bit system derived from a 16-bit)
                cat >>$ac_stdint_h <<EOF
/*              a 32-bit system derived from a 16-bit        */
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
EOF
;;
     1:2:4:4:4) AC_MSG_RESULT(..adding $t normal 32-bit system)
                cat >>$ac_stdint_h <<EOF
/*              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
EOF
;;
     1:2:4:4:8) AC_MSG_RESULT(..adding $t 32-bit system prepared for 64-bit)
                cat >>$ac_stdint_h <<EOF

/*              a 32-bit system prepared for 64-bit          */
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
EOF
;;
     1:2:4:8:8) AC_MSG_RESULT(..adding $t normal 64-bit system)
                cat >>$ac_stdint_h <<EOF

/*              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
EOF
;;
     1:2:4:8:4) AC_MSG_RESULT(..adding $t 64-bit system derived from a 32-bit)
                cat >>$ac_stdint_h <<EOF

/*              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
EOF
;;
  *)
    AC_MSG_ERROR([ $ac_cv_sizeof_X dnl
 what is that a system? contact the author, quick! http://ac-archive.sf.net])
    exit 1
;;
   esac
fi

# ------------- DONE basic int types START int64_t types ------------
if test "$ac_cv_type_uint64_t" = "yes"
then AC_MSG_RESULT(... seen good uint64_t)
     cat >>$ac_stdint_h <<EOF

/* system headers have good uint64_t */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
#endif
EOF

elif test "$ac_cv_type_u_int64_t" = "yes"
then AC_MSG_RESULT(..adding typedef u_int64_t uint64_t)
     cat >>$ac_stdint_h <<EOF

/* system headers have an u_int64_t */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef u_int64_t uint64_t;
#endif
EOF
else AC_MSG_RESULT(..adding generic uint64_t runtime checks)
     cat >>$ac_stdint_h <<EOF

/* -------------------- 64 BIT GENERIC SECTION -------------------- */
/* here are some common heuristics using compiler runtime specifics */
#if defined __STDC_VERSION__ && defined __STDC_VERSION__ > 199901L

#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef long long int64_t;
typedef unsigned long long uint64_t;
#endif

#elif !defined __STRICT_ANSI__
#if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__

#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#endif

#elif defined __GNUC__ || defined __MWERKS__ || defined __ELF__
dnl /* note: all ELF-systems seem to have loff-support which needs 64-bit */

#if !defined _NO_LONGLONG
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef long long int64_t;
typedef unsigned long long uint64_t;
#endif
#endif

#elif defined __alpha || (defined __mips && defined _ABIN32)

#if !defined _NO_LONGLONG
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef long int64_t;
typedef unsigned long uint64_t;
#endif
#endif
  /* compiler/cpu type ... or just ISO C99 */
#endif
#endif
EOF

# plus a default 64-bit for systems that are likely to be 64-bit ready
  case "$ac_cv_sizeof_x:$ac_cv_sizeof_voidp:$ac_cv_sizeof_long" in
    1:2:8:8) AC_MSG_RESULT(..adding uint64_t default, normal 64-bit system)
cat >>$ac_stdint_h <<EOF
/* DEFAULT: */
/* seen normal 64-bit system, CC has sizeof(long and void*) == 8 bytes */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef long int64_t;
typedef unsigned long uint64_t;
#endif
EOF
;;
    1:2:4:8) AC_MSG_RESULT(..adding uint64_t default, typedef to long)
cat >>$ac_stdint_h <<EOF
/* DEFAULT: */
/* seen 32-bit system prepared for 64-bit, CC has sizeof(long) == 8 bytes */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef long int64_t;
typedef unsigned long uint64_t;
#endif
EOF
;;
    1:2:8:4) AC_MSG_RESULT(..adding uint64_t default, typedef long long)
cat >>$ac_stdint_h <<EOF
/* DEFAULT: */
/* seen 64-bit derived from a 32-bit, CC has sizeof(long) == 4 bytes */
#ifndef _HAVE_UINT64_T
#define _HAVE_UINT64_T
typedef long long int64_t;
typedef unsigned long long uint64_t;
#endif
EOF
;;
   *)
cat >>$ac_stdint_h <<EOF
/* NOTE: */
/* the configure-checks for the basic types did not make us believe */
/* that we could add a fallback to a 'long long' typedef to int64_t */
EOF
  esac
fi

# ------------- DONE int64_t types START intptr types ------------
if test "$ac_cv_header_stdint_x" = "no-file" ; then
  cat >>$ac_stdint_h <<EOF

/* -------------------------- INPTR SECTION --------------------------- */