Diff
Bounty program for improvements to Tcl and certain Tcl packages.

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# tcl.m4 --
#
#	This file provides a set of autoconf macros to help TEA-enable
#	a Tcl extension.
#
# Copyright (c) 1999-2000 Ajuba Solutions.
# Copyright (c) 2002-2003 ActiveState Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: tcl.m4,v 1.2 2004/03/20 01:18:25 hobbs Exp $
# RCS: @(#) $Id: tcl.m4,v 1.3 2004/06/29 10:38:39 patthoyts Exp $

AC_PREREQ(2.50)

#------------------------------------------------------------------------
# TEA_PATH_TCLCONFIG --
#
#	Locate the tclConfig.sh file and perform a sanity check on
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#		HAVE_TYPE_OFF64_T
#
#--------------------------------------------------------------------

AC_DEFUN(TEA_TCL_64BIT_FLAGS, [
    AC_MSG_CHECKING([for 64-bit integer type])
    AC_CACHE_VAL(tcl_cv_type_64bit,[
	tcl_cv_type_64bit=none
	# See if the compiler knows natively about __int64
	AC_TRY_COMPILE(,[__int64 value = (__int64) 0;],
           tcl_cv_type_64bit=__int64,tcl_cv_type_64bit=none
           AC_TRY_RUN([#include <unistd.h>
		int main() {exit(!(sizeof(long long) > sizeof(long)));}
		], tcl_cv_type_64bit="long long"))])
	    tcl_type_64bit=__int64, tcl_type_64bit="long long")
	# See if we should use long anyway  Note that we substitute in the
	# type that is our current guess for a 64-bit type inside this check
	# program, so it should be modified only carefully...
        AC_TRY_COMPILE(,[switch (0) { 
            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ; 
        }],tcl_cv_type_64bit=${tcl_type_64bit})])
    if test "${tcl_cv_type_64bit}" = none ; then
	AC_DEFINE(TCL_WIDE_INT_IS_LONG)
	AC_MSG_RESULT([using long])
    elif test "${tcl_cv_type_64bit}" = "__int64" ; then
	# We actually want to use the default tcl.h checks in this
	# case to handle both TCL_WIDE_INT_TYPE and TCL_LL_MODIFIER*
	AC_MSG_RESULT([using Tcl header defaults])
    else
	AC_DEFINE_UNQUOTED(TCL_WIDE_INT_TYPE,${tcl_cv_type_64bit})