acinclude.m4

          s2 =  20$tmp_ssuf ;
          if(s1 > s2)
            return 1;
        ]])
      ],[
        curl_suffix_curl_off_t="$tmp_ssuf"
        curl_suffix_curl_off_tu="$tmp_usuf"
      ])
    fi
  done
  IFS=$old_IFS
  #
  if test "x$curl_suffix_curl_off_t" = "xunknown"; then
    AC_MSG_ERROR([cannot find constant suffix string for curl_off_t.])
  else
    AC_MSG_RESULT([$curl_suffix_curl_off_t])
    AC_MSG_CHECKING([constant suffix string for unsigned curl_off_t])
    AC_MSG_RESULT([$curl_suffix_curl_off_tu])
  fi
  #
])


dnl CURL_CONFIGURE_CURL_OFF_T
dnl -------------------------------------------------
dnl Find out suitable curl_off_t data type definition and associated
dnl items, and make the appropriate definitions used in template file
dnl include/curl/curlbuild.h.in to properly configure the library.

AC_DEFUN([CURL_CONFIGURE_CURL_OFF_T], [
  AC_REQUIRE([CURL_INCLUDES_INTTYPES])dnl
  #
  AC_BEFORE([$0],[AC_SYS_LARGEFILE])dnl
  AC_BEFORE([$0],[CURL_CONFIGURE_REENTRANT])dnl
  AC_BEFORE([$0],[CURL_CHECK_AIX_ALL_SOURCE])dnl
  #
  if test -z "$SED"; then
    AC_MSG_ERROR([SED not set. Cannot continue without SED being set.])
  fi
  #
  AC_CHECK_SIZEOF(long)
  AC_CHECK_SIZEOF(void*)
  #
  if test -z "$ac_cv_sizeof_long" ||
    test "$ac_cv_sizeof_long" -eq "0"; then
    AC_MSG_ERROR([cannot find out size of long.])
  fi
  if test -z "$ac_cv_sizeof_voidp" ||
     test "$ac_cv_sizeof_voidp" -eq "0"; then
    AC_MSG_ERROR([cannot find out size of void*.])
  fi
  #
  x_LP64_long=""
  x_LP32_long=""
  x_LP16_long=""
  #
  if test "$ac_cv_sizeof_long" -eq "8" &&
     test "$ac_cv_sizeof_voidp" -ge "8"; then
    x_LP64_long="long"
  elif test "$ac_cv_sizeof_long" -eq "4" &&
       test "$ac_cv_sizeof_voidp" -ge "4"; then
    x_LP32_long="long"
  elif test "$ac_cv_sizeof_long" -eq "2" &&
       test "$ac_cv_sizeof_voidp" -ge "2"; then
    x_LP16_long="long"
  fi
  #
  dnl DO_CURL_OFF_T_CHECK results are stored in next 3 vars
  #
  curl_typeof_curl_off_t="unknown"
  curl_sizeof_curl_off_t="unknown"
  curl_format_curl_off_t="unknown"
  curl_format_curl_off_tu="unknown"
  #
  if test "$curl_typeof_curl_off_t" = "unknown"; then
    AC_MSG_CHECKING([for 64-bit curl_off_t data type])
    for t8 in          \
      "$x_LP64_long"   \
      'int64_t'        \
      '__int64'        \
      'long long'      \
      '__longlong'     \
      '__longlong_t'   ; do
      DO_CURL_OFF_T_CHECK([$t8], [8])
    done
    AC_MSG_RESULT([$curl_typeof_curl_off_t])
  fi
  if test "$curl_typeof_curl_off_t" = "unknown"; then
    AC_MSG_CHECKING([for 32-bit curl_off_t data type])
    for t4 in          \
      "$x_LP32_long"   \
      'int32_t'        \
      '__int32'        \
      'int'            ; do
      DO_CURL_OFF_T_CHECK([$t4], [4])
    done 
    AC_MSG_RESULT([$curl_typeof_curl_off_t])
  fi
  if test "$curl_typeof_curl_off_t" = "unknown"; then
    AC_MSG_CHECKING([for 16-bit curl_off_t data type])
    for t2 in          \
      "$x_LP16_long"   \
      'int16_t'        \
      '__int16'        \
      'int'            ; do
      DO_CURL_OFF_T_CHECK([$t2], [2])
    done
    AC_MSG_RESULT([$curl_typeof_curl_off_t])
  fi
  if test "$curl_typeof_curl_off_t" = "unknown"; then
    AC_MSG_ERROR([cannot find data type for curl_off_t.])
  fi
  #
  AC_MSG_CHECKING([size of curl_off_t])
  AC_MSG_RESULT([$curl_sizeof_curl_off_t])
  #
  AC_MSG_CHECKING([formatting string directive for curl_off_t])
  if test "$curl_format_curl_off_t" != "unknown"; then
    x_pull_headers="yes"
    curl_format_curl_off_t=`echo "$curl_format_curl_off_t" | "$SED" 's/[["]]//g'`
    curl_format_curl_off_tu=`echo "$curl_format_curl_off_t" | "$SED" 's/i$/u/'`
    curl_format_curl_off_tu=`echo "$curl_format_curl_off_tu" | "$SED" 's/d$/u/'`
    curl_format_curl_off_tu=`echo "$curl_format_curl_off_tu" | "$SED" 's/D$/U/'`
  else
    x_pull_headers="no"
    case AS_TR_SH([$curl_typeof_curl_off_t]) in
      long_long | __longlong | __longlong_t)
        curl_format_curl_off_t="lld"
        curl_format_curl_off_tu="llu"
        ;;
      long)
        curl_format_curl_off_t="ld"
        curl_format_curl_off_tu="lu"
        ;;
      int)
        curl_format_curl_off_t="d"
        curl_format_curl_off_tu="u"
        ;;
      __int64)
        curl_format_curl_off_t="I64d"
        curl_format_curl_off_tu="I64u"
        ;;
      __int32)
        curl_format_curl_off_t="I32d"
        curl_format_curl_off_tu="I32u"
        ;;
      __int16)
        curl_format_curl_off_t="I16d"
        curl_format_curl_off_tu="I16u"
        ;;
      *)
        AC_MSG_ERROR([cannot find print format string for curl_off_t.])
        ;;
    esac
  fi
  AC_MSG_RESULT(["$curl_format_curl_off_t"])
  #
  AC_MSG_CHECKING([formatting string directive for unsigned curl_off_t])
  AC_MSG_RESULT(["$curl_format_curl_off_tu"])
  #
  DO_CURL_OFF_T_SUFFIX_CHECK([$curl_typeof_curl_off_t])
  #
  if test "$x_pull_headers" = "yes"; then
    if test "x$ac_cv_header_sys_types_h" = "xyes"; then
      CURL_DEFINE_UNQUOTED([CURL_PULL_SYS_TYPES_H])
    fi
    if test "x$ac_cv_header_stdint_h" = "xyes"; then
      CURL_DEFINE_UNQUOTED([CURL_PULL_STDINT_H])
    fi
    if test "x$ac_cv_header_inttypes_h" = "xyes"; then
      CURL_DEFINE_UNQUOTED([CURL_PULL_INTTYPES_H])
    fi
  fi
  #
  CURL_DEFINE_UNQUOTED([CURL_TYPEOF_CURL_OFF_T], [$curl_typeof_curl_off_t])
  CURL_DEFINE_UNQUOTED([CURL_FORMAT_CURL_OFF_T], ["$curl_format_curl_off_t"])
  CURL_DEFINE_UNQUOTED([CURL_FORMAT_CURL_OFF_TU], ["$curl_format_curl_off_tu"])
  CURL_DEFINE_UNQUOTED([CURL_FORMAT_OFF_T], ["%$curl_format_curl_off_t"])
  CURL_DEFINE_UNQUOTED([CURL_SIZEOF_CURL_OFF_T], [$curl_sizeof_curl_off_t])
  CURL_DEFINE_UNQUOTED([CURL_SUFFIX_CURL_OFF_T], [$curl_suffix_curl_off_t])
  CURL_DEFINE_UNQUOTED([CURL_SUFFIX_CURL_OFF_TU], [$curl_suffix_curl_off_tu])
  #
])


dnl CURL_CHECK_WIN32_LARGEFILE
dnl -------------------------------------------------
dnl Check if curl's WIN32 large file will be used

AC_DEFUN([CURL_CHECK_WIN32_LARGEFILE], [
  AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
  AC_MSG_CHECKING([whether build target supports WIN32 file API])
  curl_win32_file_api="no"
  if test "$ac_cv_header_windows_h" = "yes"; then
    if test x"$enable_largefile" != "xno"; then
      AC_COMPILE_IFELSE([
        AC_LANG_PROGRAM([[
        ]],[[
#if !defined(_WIN32_WCE) && \
    (defined(__MINGW32__) || \
    (defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64))))
          int dummy=1;
#else
          WIN32 large file API not supported.
#endif
        ]])
      ],[
        curl_win32_file_api="win32_large_files"
      ])
    fi
    if test "$curl_win32_file_api" = "no"; then
      AC_COMPILE_IFELSE([
        AC_LANG_PROGRAM([[
        ]],[[
#if defined(_WIN32_WCE) || defined(__MINGW32__) || defined(_MSC_VER)
          int dummy=1;
#else
          WIN32 small file API not supported.
#endif
        ]])
      ],[
        curl_win32_file_api="win32_small_files"
      ])
    fi
  fi
  case "$curl_win32_file_api" in
    win32_large_files)
      AC_MSG_RESULT([yes (large file enabled)])
      AC_DEFINE_UNQUOTED(USE_WIN32_LARGE_FILES, 1,
        [Define to 1 if you are building a Windows target with large file support.])
      ;;
    win32_small_files)
      AC_MSG_RESULT([yes (large file disabled)])
      AC_DEFINE_UNQUOTED(USE_WIN32_LARGE_FILES, 1,
        [Define to 1 if you are building a Windows target without large file support.])
      ;;
    *)
      AC_MSG_RESULT([no])
      ;;
  esac
])