[issue4258] Use 30-bit digits instead of 15-bit digits for Python integers. - Code Review (original) (raw)

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1 dnl ***********************************************

2 dnl * Please run autoreconf to test your changes! *

3 dnl ***********************************************

4 dnl NOTE: autoconf 2.64 doesn't seem to work (use 2.61).

6 # Set VERSION so we only need to edit in one place (i.e., here)

7 m4_define(PYTHON_VERSION, 3.1)

9 AC_REVISION($Revision: 68924 $)

10 AC_PREREQ(2.61)

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1281 #endif

1282 EOF

1283

1284 # Type availability checks

1285 AC_TYPE_MODE_T

1286 AC_TYPE_OFF_T

1287 AC_TYPE_PID_T

1288 AC_TYPE_SIGNAL

1289 AC_TYPE_SIZE_T

1290 AC_TYPE_UID_T

1291 AC_TYPE_UINT32_T

1292 AC_TYPE_UINT64_T

1293 AC_TYPE_INT32_T

1294 AC_TYPE_INT64_T

1291 AC_CHECK_TYPE(ssize_t,

1295 AC_CHECK_TYPE(ssize_t,

1292 AC_DEFINE(HAVE_SSIZE_T, 1, Define if your compiler provides ssize_t),,)

1296 AC_DEFINE(HAVE_SSIZE_T, 1, Define if your compiler provides ssize_t),,)

1293

1297

1294 # Sizes of various common basic types

1298 # Sizes of various common basic types

1295 # ANSI C requires sizeof(char) == 1, so no need to check it

1299 # ANSI C requires sizeof(char) == 1, so no need to check it

1296 AC_CHECK_SIZEOF(int, 4)

1300 AC_CHECK_SIZEOF(int, 4)

1297 AC_CHECK_SIZEOF(long, 4)

1301 AC_CHECK_SIZEOF(long, 4)

1298 AC_CHECK_SIZEOF(void *, 4)

1302 AC_CHECK_SIZEOF(void *, 4)

1299 AC_CHECK_SIZEOF(short, 2)

1303 AC_CHECK_SIZEOF(short, 2)

1300 AC_CHECK_SIZEOF(float, 4)

1304 AC_CHECK_SIZEOF(float, 4)

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3118 then

3122 then

3119 AC_DEFINE(TANH_PRESERVES_ZERO_SIGN, 1,

3123 AC_DEFINE(TANH_PRESERVES_ZERO_SIGN, 1,

3120 [Define if tanh(-0.) is -0., or if platform doesn't have signed zeros])

3124 [Define if tanh(-0.) is -0., or if platform doesn't have signed zeros])

3121 fi

3125 fi

3122

3126

3123 AC_CHECK_FUNCS([acosh asinh atanh copysign expm1 finite hypot log1p])

3127 AC_CHECK_FUNCS([acosh asinh atanh copysign expm1 finite hypot log1p])

3124 AC_CHECK_DECLS([isinf, isnan, isfinite], [], [], [[#include <math.h>]])

3128 AC_CHECK_DECLS([isinf, isnan, isfinite], [], [], [[#include <math.h>]])

3125

3129

3126 LIBS=$LIBS_SAVE

3130 LIBS=$LIBS_SAVE

3127

3131

3132 # determine what size digit to use for Python's longs

3133 AC_MSG_CHECKING([digit size for Python's longs])

3134 AC_ARG_ENABLE(big-digits,

3135 AC_HELP_STRING([--enable-big-digits@<:@=BITS@:>@],[use big digits for Python lon gs [[BITS=30]]]),

3136 [case $enable_big_digits in

3137 yes)

3138 enable_big_digits=30 ;;

3139 no)

3140 enable_big_digits=15 ;;

3141 [15|30])

3142 ;;

3143 *)

3144 AC_MSG_ERROR([bad value $enable_big_digits for --enable-big-digits; value shou ld be 15 or 30]) ;;

3145 esac

3146 AC_MSG_RESULT($enable_big_digits)

3147 AC_DEFINE_UNQUOTED(PYLONG_DIGIT_SIZE, $enable_big_digits, [Define as the preferr ed size in bits of long digits])

3148 ],

3149 [AC_MSG_RESULT(no value specified)])

3150

3128 # check for wchar.h

3151 # check for wchar.h

3129 AC_CHECK_HEADER(wchar.h, [

3152 AC_CHECK_HEADER(wchar.h, [

3130 AC_DEFINE(HAVE_WCHAR_H, 1,·

3153 AC_DEFINE(HAVE_WCHAR_H, 1,·

3131 [Define if the compiler provides a wchar.h header file.])·

3154 [Define if the compiler provides a wchar.h header file.])·

3132 wchar_h="yes"

3155 wchar_h="yes"

3133 ],

3156 ],

3134 wchar_h="no"

3157 wchar_h="no"

3135 )

3158 )

3136

3159

3137 # determine wchar_t size

3160 # determine wchar_t size

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3707 if test ! -f Modules/Setup.local

3730 if test ! -f Modules/Setup.local

3708 then

3731 then

3709 echo "# Edit this file for local setup changes" >Modules/Setup.local

3732 echo "# Edit this file for local setup changes" >Modules/Setup.local

3710 fi

3733 fi

3711

3734

3712 echo "creating Makefile"

3735 echo "creating Makefile"

3713 SHELLSHELL SHELLsrcdir/Modules/makesetup -c $srcdir/Modules/config.c.in \

3736 SHELLSHELL SHELLsrcdir/Modules/makesetup -c $srcdir/Modules/config.c.in \

3714 -s Modules Modules/Setup.config \

3737 -s Modules Modules/Setup.config \

3715 Modules/Setup.local Modules/Setup

3738 Modules/Setup.local Modules/Setup

3716 mv config.c Modules

3739 mv config.c Modules

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