cln_mirror/autoconf/aclocal.m4

# generated automatically by aclocal 1.9.5 -*- Autoconf -*-

# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
# 2005  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 -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.57)

AC_DEFUN([CL_ALLOCA],
[# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
# for constant arguments.  Useless!
CL_LINK_CHECK(working alloca.h, cl_cv_header_alloca_h,
[#include <alloca.h>], [char *p = (char *) alloca(2 * sizeof(int));],
AC_DEFINE(HAVE_ALLOCA_H,,[have <alloca.h> and it should be used (not Ultrix)]))
decl="#ifdef __GNUC__
#define alloca __builtin_alloca
#else
#ifdef _MSC_VER
#include <malloc.h>
#define alloca _alloca
#else
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#else
#ifdef _AIX
 #pragma alloca
#else
#ifndef alloca
char *alloca ();
#endif
#endif
#endif
#endif
#endif
"
CL_LINK_CHECK([alloca], cl_cv_func_alloca,
$decl, [char *p = (char *) alloca(1);],
 , [alloca_missing=1])dnl
if test -n "$alloca_missing"; then
  # The SVR3 libPW and SVR4 libucb both contain incompatible functions
  # that cause trouble.  Some versions do not even contain alloca or
  # contain a buggy version.  If you still want to use their alloca,
  # use ar to extract alloca.o from them instead of compiling alloca.c.
  ALLOCA=alloca.${ac_objext}
  AC_DEFINE(NO_ALLOCA,,[need to link with an external alloca.o when using alloca()])
fi
AC_SUBST(ALLOCA)dnl
])

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.57)

AC_DEFUN([CL_AS_UNDERSCORE],
[AC_BEFORE([$0], [CL_GLOBAL_CONSTRUCTORS])
m4_pattern_allow([^AS_UNDERSCORE$])
AC_CACHE_CHECK(for underscore in external names, cl_cv_prog_as_underscore, [
cat > conftest.c <<EOF
#ifdef __cplusplus
extern "C"
#endif
int foo() { return 0; }
EOF
# look for the assembly language name in the .s file
AC_TRY_COMMAND(${CC-cc} -S conftest.c) >/dev/null 2>&1
if grep _foo conftest.s >/dev/null ; then
  cl_cv_prog_as_underscore=yes
else
  cl_cv_prog_as_underscore=no
fi
rm -f conftest*
])
if test $cl_cv_prog_as_underscore = yes; then
  AS_UNDERSCORE=true
  AC_DEFINE(ASM_UNDERSCORE,,[symbols are prefixed by an underscore in assembly language])
else
  AS_UNDERSCORE=false
fi
AC_SUBST(AS_UNDERSCORE)dnl
])

dnl Copyright (C) 1993-2002 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels.

AC_PREREQ(2.13)

AC_DEFUN([CL_GLOBAL_CONSTRUCTORS],
[AC_REQUIRE([CL_AS_UNDERSCORE])dnl
if test -n "$GCC"; then
AC_CACHE_CHECK(for the global constructors function prefix,
cl_cv_cplusplus_ctorprefix, [
cat > conftest.cc << EOF
struct foo { foo (); };
foo foobar;
EOF
# look for the assembly language name in the .s file
AC_TRY_COMMAND(${CXX-g++} $CXXFLAGS -S conftest.cc) >/dev/null 2>&1
if grep '_GLOBAL_\$I\$foobar' conftest.s >/dev/null ; then
  cl_cv_cplusplus_ctorprefix='_GLOBAL_$I$'
else
  if grep '_GLOBAL_\.I\.foobar' conftest.s >/dev/null ; then
    cl_cv_cplusplus_ctorprefix='_GLOBAL_.I.'
  else
    if grep '_GLOBAL__I_foobar' conftest.s >/dev/null ; then
      cl_cv_cplusplus_ctorprefix='_GLOBAL__I_'
    else
      cl_cv_cplusplus_ctorprefix=unknown
    fi
  fi
fi
rm -f conftest*
])
if test "$cl_cv_cplusplus_ctorprefix" '!=' unknown; then
  ac_value='"'"$cl_cv_cplusplus_ctorprefix"'"'
  AC_DEFINE_UNQUOTED(CL_GLOBAL_CONSTRUCTOR_PREFIX,$ac_value)
AC_CACHE_CHECK(for the global destructors function prefix,
cl_cv_cplusplus_dtorprefix, [
cat > conftest.cc << EOF
struct foo { foo (); ~ foo (); };
foo foobar;
EOF
# look for the assembly language name in the .s file
AC_TRY_COMMAND(${CXX-g++} $CXXFLAGS -S conftest.cc) >/dev/null 2>&1
if grep '_GLOBAL_\$D\$foobar' conftest.s >/dev/null ; then
  cl_cv_cplusplus_dtorprefix='_GLOBAL_$D$'
else
  if grep '_GLOBAL_\.D\.foobar' conftest.s >/dev/null ; then
    cl_cv_cplusplus_dtorprefix='_GLOBAL_.D.'
  else
    if grep '_GLOBAL__D_foobar' conftest.s >/dev/null ; then
      cl_cv_cplusplus_dtorprefix='_GLOBAL__D_'
    else
      cl_cv_cplusplus_dtorprefix=none
    fi
  fi
fi
rm -f conftest*
])
  if test "$cl_cv_cplusplus_dtorprefix" '!=' none; then
    ac_value='"'"$cl_cv_cplusplus_ctorprefix"'"'
    AC_DEFINE_UNQUOTED(CL_GLOBAL_DESTRUCTOR_PREFIX,$ac_value)
  fi
dnl Check whether the global constructors/destructors functions are file-scope
dnl only by default. This is the case in egcs-1.1.2 or newer.
AC_CACHE_CHECK(whether the global constructors function need to be exported,
cl_cv_cplusplus_ctorexport, [
cat > conftest1.cc << EOF
struct foo { foo (); };
foo foobar;
EOF
cat > conftest2.cc << EOF
#include "confdefs.h"
#ifdef ASM_UNDERSCORE
#define ASM_UNDERSCORE_PREFIX "_"
#else
#define ASM_UNDERSCORE_PREFIX ""
#endif
struct foo { foo (); };
foo::foo () {}
extern "C" void ctor (void) __asm__ (ASM_UNDERSCORE_PREFIX CL_GLOBAL_CONSTRUCTOR_PREFIX "foobar");
int main() { ctor(); return 0; }
EOF
if AC_TRY_COMMAND(${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest1.cc conftest2.cc $LIBS 1>&5) >/dev/null 2>&1 && test -s conftest${ac_exeext}; then
  cl_cv_cplusplus_ctorexport=no
else
  cl_cv_cplusplus_ctorexport=yes
fi
rm -f conftest*
])
if test "$cl_cv_cplusplus_ctorexport" = yes; then
  AC_DEFINE(CL_NEED_GLOBALIZE_CTORDTOR)
fi
fi
fi
])

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.57)

AC_DEFUN([CL_FPU_CONTROL],
[dnl Check for Linux with <fpu_control.h> and fpu_control_t or __setfpucw().
dnl glibc versions since October 1998 define fpu_control_t. Earlier versions
dnl define and declare __setfpucw(). Very early Linux libc versions have none,
dnl and __fpu_control is of type `unsigned short'.
CL_COMPILE_CHECK([fpu_control_t], cl_cv_type_fpu_control_t,
[#include <fpu_control.h>], [fpu_control_t x;],
AC_DEFINE(HAVE_FPU_CONTROL_T,,[have <fpu_control.h> and it defines the fpu_control_t type]))
CL_COMPILE_CHECK([__setfpucw], cl_cv_func_setfpucw,
[#include <fpu_control.h>], [__setfpucw(_FPU_IEEE);],
AC_DEFINE(HAVE_SETFPUCW,,[have <fpu_control.h> and it declares the __setfpucw() function]))
])

dnl Copyright (C) 1993-2002 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.13)

dnl without AC_MSG_...:   with AC_MSG_... and caching:
dnl   AC_TRY_CPP          CL_CPP_CHECK
dnl   AC_TRY_COMPILE      CL_COMPILE_CHECK
dnl   AC_TRY_LINK         CL_LINK_CHECK
dnl   AC_TRY_RUN          CL_RUN_CHECK - would require cross-compiling support
dnl Usage:
dnl AC_TRY_CPP(INCLUDES,
dnl            ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
dnl CL_CPP_CHECK(ECHO-TEXT, CACHE-ID,
dnl              INCLUDES,
dnl              ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
dnl AC_TRY_xxx(INCLUDES, FUNCTION-BODY,
dnl            ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
dnl CL_xxx_CHECK(ECHO-TEXT, CACHE-ID,
dnl              INCLUDES, FUNCTION-BODY,
dnl              ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])

AC_DEFUN([CL_CPP_CHECK],
[AC_MSG_CHECKING(for $1)
AC_CACHE_VAL($2,[
AC_TRY_CPP([$3], $2=yes, $2=no)
])
AC_MSG_RESULT([$]$2)
if test [$]$2 = yes; then
  ifelse([$4], , :, [$4])
ifelse([$5], , , [else
  $5
])dnl
fi
])

AC_DEFUN([CL_COMPILE_CHECK],
[AC_MSG_CHECKING(for $1)
AC_CACHE_VAL($2,[
AC_TRY_COMPILE([$3],[$4], $2=yes, $2=no)
])
AC_MSG_RESULT([$]$2)
if test [$]$2 = yes; then
  ifelse([$5], , :, [$5])
ifelse([$6], , , [else
  $6
])dnl
fi
])

AC_DEFUN([CL_LINK_CHECK],
[AC_MSG_CHECKING(for $1)
AC_CACHE_VAL($2,[
AC_TRY_LINK([$3],[$4], $2=yes, $2=no)
])
AC_MSG_RESULT([$]$2)
if test [$]$2 = yes; then
  ifelse([$5], , :, [$5])
ifelse([$6], , , [else
  $6
])dnl
fi
])

dnl CL_SILENT(ACTION)
dnl performs ACTION, with AC_MSG_CHECKING and AC_MSG_RESULT being defined away.
AC_DEFUN([CL_SILENT],
[pushdef([AC_MSG_CHECKING],[:])dnl
pushdef([AC_CHECKING],[:])dnl
pushdef([AC_MSG_RESULT],[:])dnl
$1[]dnl
popdef([AC_MSG_RESULT])dnl
popdef([AC_CHECKING])dnl
popdef([AC_MSG_CHECKING])dnl
])

dnl Expands to the "extern ..." prefix used for system declarations.
dnl AC_LANG_EXTERN()
AC_DEFUN([AC_LANG_EXTERN],
[extern
#ifdef __cplusplus
"C"
#endif
])

AC_DEFUN([CL_CC_WORKS],
[AC_CACHE_CHECK(whether CC works at all, cl_cv_prog_cc_works, [
AC_LANG_SAVE()
AC_LANG_C()
AC_TRY_RUN([int main() { exit(0); }],
cl_cv_prog_cc_works=yes, cl_cv_prog_cc_works=no,
AC_TRY_LINK([], [], cl_cv_prog_cc_works=yes, cl_cv_prog_cc_works=no))
AC_LANG_RESTORE()
])
case "$cl_cv_prog_cc_works" in
  *no) echo "Installation or configuration problem: C compiler cannot create executables."; exit 1;;
  *yes) ;;
esac
])

AC_DEFUN([CL_CONFIG_SUBDIRS],
[dnl No AC_CONFIG_AUX_DIR_DEFAULT, so we don't need install.sh.
AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])
AC_CONFIG_SUBDIRS([$1])dnl
])

AC_DEFUN([CL_CANONICAL_HOST],
[AC_REQUIRE([AC_PROG_CC]) dnl Actually: AC_REQUIRE([CL_CC_WORKS])
dnl Set ac_aux_dir before the cache check, because AM_PROG_LIBTOOL needs it.
ac_aux_dir=${srcdir}/$1
dnl A substitute for AC_CONFIG_AUX_DIR_DEFAULT, so we don't need install.sh.
ac_config_guess="$SHELL $ac_aux_dir/config.guess"
ac_config_sub="$SHELL $ac_aux_dir/config.sub"
dnl We have defined $ac_aux_dir.
AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
dnl In autoconf-2.52, a single AC_CANONICAL_HOST has the effect of inserting
dnl the code of AC_CANONICAL_BUILD *before* CL_CANONICAL_HOST, i.e. before
dnl ac_aux_dir has been set. To work around this, we list AC_CANONICAL_BUILD
dnl explicitly.
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
])

AC_DEFUN([CL_CANONICAL_HOST_CPU],
[AC_REQUIRE([CL_CANONICAL_HOST])AC_REQUIRE([AC_PROG_CC])
case "$host_cpu" in
changequote(,)dnl
  i[4567]86 )
    host_cpu=i386
    ;;
  alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] )
    host_cpu=alpha
    ;;
  hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
    host_cpu=hppa
    ;;
  powerpc )
    host_cpu=rs6000
    ;;
  c1 | c2 | c32 | c34 | c38 | c4 )
    host_cpu=convex
    ;;
  arm* )
    host_cpu=arm
    ;;
changequote([,])dnl
  mips )
    AC_CACHE_CHECK([for 64-bit MIPS], cl_cv_host_mips64, [
AC_EGREP_CPP(yes,
[#if defined(_MIPS_SZLONG)
#if (_MIPS_SZLONG == 64)
/* We should also check for (_MIPS_SZPTR == 64), but gcc keeps this at 32. */
  yes
#endif
#endif
], cl_cv_host_mips64=yes, cl_cv_host_mips64=no)
])
if test $cl_cv_host_mips64 = yes; then
  host_cpu=mips64
fi
    ;;
dnl UltraSPARCs running Linux have `uname -m` = "sparc64", but the C compiler
dnl still generates 32-bit code.
  sparc | sparc64 )
    AC_CACHE_CHECK([for 64-bit SPARC], cl_cv_host_sparc64, [
AC_EGREP_CPP(yes,
[#if defined(__sparcv9) || defined(__arch64__)
  yes
#endif
], cl_cv_host_sparc64=yes, cl_cv_host_sparc64=no)
])
if test $cl_cv_host_sparc64 = yes; then
  host_cpu=sparc64
else
  host_cpu=sparc
fi
    ;;
esac
dnl was AC_DEFINE_UNQUOTED(__${host_cpu}__) but KAI C++ 3.2d doesn't like this
cat >> confdefs.h <<EOF
#ifndef __${host_cpu}__
#define __${host_cpu}__ 1
#endif
EOF
])

AC_DEFUN([CL_CANONICAL_HOST_CPU_FOR_FFCALL],
[AC_REQUIRE([CL_CANONICAL_HOST])AC_REQUIRE([AC_PROG_CC])
case "$host_cpu" in
changequote(,)dnl
  i[4567]86 )
    host_cpu=i386
    ;;
  alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] )
    host_cpu=alpha
    ;;
  hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
    host_cpu=hppa
    ;;
  powerpc )
    host_cpu=rs6000
    ;;
  c1 | c2 | c32 | c34 | c38 | c4 )
    host_cpu=convex
    ;;
  arm* )
    host_cpu=arm
    ;;
changequote([,])dnl
  mips )
    AC_CACHE_CHECK([for 64-bit MIPS], cl_cv_host_mips64, [
AC_EGREP_CPP(yes,
[#if defined(_MIPS_SZLONG)
#if (_MIPS_SZLONG == 64)
/* We should also check for (_MIPS_SZPTR == 64), but gcc keeps this at 32. */
  yes
#endif
#endif
], cl_cv_host_mips64=yes, cl_cv_host_mips64=no)
])
if test $cl_cv_host_mips64 = yes; then
  host_cpu=mips64
else
  AC_CACHE_CHECK([for MIPS with n32 ABI], cl_cv_host_mipsn32, [
dnl Strictly speaking, the MIPS ABI (-32 or -n32) is independent from the CPU
dnl identification (-mips[12] or -mips[34]). But -n32 is commonly used together
dnl with -mips3, and it's easier to test the CPU identification.
AC_EGREP_CPP(yes,
[#if __mips >= 3
  yes
#endif
], cl_cv_host_mipsn32=yes, cl_cv_host_mipsn32=no)
])
if test $cl_cv_host_mipsn32 = yes; then
  host_cpu=mipsn32
fi
fi
    ;;
dnl UltraSPARCs running Linux have `uname -m` = "sparc64", but the C compiler
dnl still generates 32-bit code.
  sparc | sparc64 )
    AC_CACHE_CHECK([for 64-bit SPARC], cl_cv_host_sparc64, [
AC_EGREP_CPP(yes,
[#if defined(__sparcv9) || defined(__arch64__)
  yes
#endif
], cl_cv_host_sparc64=yes, cl_cv_host_sparc64=no)
])
if test $cl_cv_host_sparc64 = yes; then
  host_cpu=sparc64
else
  host_cpu=sparc
fi
    ;;
esac
dnl was AC_DEFINE_UNQUOTED(__${host_cpu}__) but KAI C++ 3.2d doesn't like this
cat >> confdefs.h <<EOF
#ifndef __${host_cpu}__
#define __${host_cpu}__ 1
#endif
EOF
])

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.57)

AC_DEFUN([CL_GETTIMEOFDAY],
[AC_BEFORE([$0], [CL_TIMES_CLOCK])
AC_CHECK_FUNCS(gettimeofday)dnl
if test $ac_cv_func_gettimeofday = yes; then
dnl HAVE_GETTIMEOFDAY is defined
CL_PROTO([gettimeofday], [
CL_PROTO_TRY([
#include <sys/types.h>
#include <sys/time.h>
], [int gettimeofday (struct timeval * tp, struct timezone * tzp);],
[int gettimeofday();],
cl_cv_proto_gettimeofday_dots=no
cl_cv_proto_gettimeofday_arg2="struct timezone *",
CL_PROTO_TRY([
#include <sys/types.h>
#include <sys/time.h>
], [int gettimeofday (struct timeval * tp, void * tzp);],
[int gettimeofday();],
cl_cv_proto_gettimeofday_dots=no
cl_cv_proto_gettimeofday_arg2="void *",
cl_cv_proto_gettimeofday_dots=yes
cl_cv_proto_gettimeofday_arg2="..."))
], [extern int gettimeofday (struct timeval *, $cl_cv_proto_gettimeofday_arg2);])
if test $cl_cv_proto_gettimeofday_dots = yes; then
AC_DEFINE(GETTIMEOFDAY_DOTS,,[declaration of gettimeofday() needs dots])
else
AC_DEFINE_UNQUOTED(GETTIMEOFDAY_TZP_T,$cl_cv_proto_gettimeofday_arg2,[type of `tzp' in gettimeofday() declaration])
fi
fi
])

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.13)

AC_DEFUN([CL_MACHINE],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_C_CHAR_UNSIGNED])dnl
cl_machine_file_c=$2
cl_machine_file_h=$3
if test $cross_compiling = no; then
if test -z "$[$4]"; then
AC_CHECKING(for [$1])
cat > conftest.$ac_ext <<EOF
#include "confdefs.h"
EOF
cat "$cl_machine_file_c" >> conftest.$ac_ext
ORIGCC="$CC"
if test $ac_cv_prog_gcc = yes; then
# gcc -O (gcc version <= 2.3.2) crashes when compiling long long shifts for
# target 80386. Strip "-O".
CC=`echo "$CC " | sed -e 's/-O //g'`
fi
AC_TRY_EVAL(ac_link)
CC="$ORIGCC"
if test -s conftest; then
  echo "creating $cl_machine_file_h"
  ./conftest > conftest.h
  if cmp -s "$cl_machine_file_h" conftest.h 2>/dev/null; then
    # The file exists and we would not be changing it
    rm -f conftest.h
  else
    rm -f "$cl_machine_file_h"
    mv conftest.h "$cl_machine_file_h"
  fi
  [$4]=1
else
  echo "creation of $cl_machine_file_h failed"
fi
rm -f conftest*
fi
else
echo "cross-compiling - cannot create $cl_machine_file_h"
fi
])

dnl Copyright (C) 1993-2005 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Paul Eggert.

AC_PREREQ(2.13)

AC_DEFUN([CL_LONGDOUBLE],
[AC_CACHE_CHECK(for long double type, cl_cv_c_longdouble, [
AC_TRY_RUN([int main()
{ long double x = 2.7182818284590452354L; x = x*x; exit (x==0.0L); }],
cl_cv_c_longdouble=yes, cl_cv_c_longdouble=no, [
dnl When cross-compiling, use the test from gnulib.
AC_TRY_COMPILE([
  /* The Stardent Vistra knows sizeof(long double), but does not support it.  */
  long double foo = 0.0;
  /* On Ultrix 4.3 cc, long double is 4 and double is 8.  */
  int array [2*(sizeof(long double) >= sizeof(double)) - 1];
  ], , cl_cv_c_longdouble=yes, cl_cv_c_longdouble=no)])
])
if test $cl_cv_c_longdouble = yes; then
  AC_DEFINE(HAVE_LONGDOUBLE)
fi
])

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2005 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold, Paul Eggert.

AC_PREREQ(2.57)

AC_DEFUN([CL_LONGLONG],
[AC_CACHE_CHECK(for long long type, cl_cv_c_longlong, [
AC_TRY_RUN([int main()
{
/* long longs don't work right with gcc-2.7.2 on m68k */
/* long longs don't work right with gcc-2.7.2 on rs6000: avcall/tests.c gets
   miscompiled. */
#if defined(__m68k__) || (defined(_IBMR2) || defined(__powerpc))
#if defined(__GNUC__) && (__GNUC__ == 2) && (__GNUC_MINOR__ <= 7)
  exit(1);
#endif
#endif
  { long x = 944938507; long y = 737962842; long z = 162359677;
    exit(!(((long long) x)*((long long) y)>>32 == z));
  }
}],
cl_cv_c_longlong=yes, cl_cv_c_longlong=no, [
dnl When cross-compiling, use the test from gnulib.
AC_TRY_LINK([long long ll = 1LL; int i = 63;],
  [long long llmax = (long long) -1;
   return ll << i | ll >> i | llmax / ll | llmax % ll;],
  cl_cv_c_longlong=yes,
  cl_cv_c_longlong=no)])
])
if test $cl_cv_c_longlong = yes; then
  AC_DEFINE(HAVE_LONGLONG,,[compiler supports the `long long' type])
fi
])

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.57)

AC_DEFUN([CL_PERROR],
[AC_MSG_CHECKING(for perror declaration)
AC_CACHE_VAL(cl_cv_proto_perror, [
AC_TRY_COMPILE([
/* Some systems declare perror() in <errno.h>, some in <stdio.h>, some don't
   declare it at all. */
#include <stdio.h>
#include <errno.h>
]AC_LANG_EXTERN[double perror ();], [],
cl_cv_proto_perror=no, cl_cv_proto_perror=yes)
])
AC_MSG_RESULT([$cl_cv_proto_perror])
if test $cl_cv_proto_perror = yes; then
AC_DEFINE(HAVE_PERROR_DECL,,[<errno.h> or <stdio.h> contains a declaration for perror()])
fi
])

dnl Copyright (C) 1993-2002 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels.

AC_PREREQ(2.13)

dnl CL_PROTO(IDENTIFIER, ACTION-IF-NOT-FOUND, FINAL-PROTOTYPE)
AC_DEFUN([CL_PROTO],
[AC_MSG_CHECKING([for $1 declaration])
AC_CACHE_VAL(cl_cv_proto_[$1], [$2
cl_cv_proto_$1="$3"])
cl_cv_proto_$1=`echo "[$]cl_cv_proto_$1" | tr -s ' ' | sed -e 's/( /(/'`
AC_MSG_RESULT([$]{ac_t:-
         }[$]cl_cv_proto_$1)
])

dnl CL_PROTO_RET(INCLUDES, ANSI-DECL, TRAD-DECL, CACHE-ID, TYPE-IF-OK, TYPE-IF-FAILS)
AC_DEFUN([CL_PROTO_RET],
[AC_TRY_COMPILE([$1]
AC_LANG_EXTERN
[#if defined(__STDC__) || defined(__cplusplus)
$2
#else
$3
#endif
], [], $4="$5", $4="$6")
])

dnl CL_PROTO_TRY(INCLUDES, ANSI-DECL, TRAD-DECL, ACTION-IF-OK, ACTION-IF-FAILS)
AC_DEFUN([CL_PROTO_TRY],
[AC_TRY_COMPILE([$1]
AC_LANG_EXTERN
[#if defined(__STDC__) || defined(__cplusplus)
$2
#else
$3
#endif
], [], [$4], [$5])
])

dnl CL_PROTO_CONST(INCLUDES, ANSI-DECL, TRAD-DECL, CACHE-ID)
AC_DEFUN([CL_PROTO_CONST],
[CL_PROTO_TRY([$1], [$2], [$3], $4="", $4="const")]
)

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold, Peter Burwood, Sam Steingold.

AC_PREREQ(2.57)

AC_DEFUN([CL_RUSAGE],
[AC_CHECK_HEADERS(sys/resource.h sys/times.h)dnl
if test $ac_cv_header_sys_resource_h = yes; then
  dnl HAVE_SYS_RESOURCE_H defined
  CL_LINK_CHECK([getrusage], cl_cv_func_getrusage,
[#include <sys/types.h> /* NetBSD 1.0 needs this */
#include <sys/time.h>
#include <sys/resource.h>],
    [struct rusage x; int y = RUSAGE_SELF; getrusage(y,&x); x.ru_utime.tv_sec;])dnl
  if test $cl_cv_func_getrusage = yes; then
    CL_PROTO([getrusage], [
    CL_PROTO_TRY([
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h> /* NetBSD 1.0 needs this */
#include <sys/time.h>
#include <sys/resource.h>
],
[int getrusage (int who, struct rusage * rusage);],
[int getrusage();],
[cl_cv_proto_getrusage_arg1="int"],
[cl_cv_proto_getrusage_arg1="enum __rusage_who"])
], [extern int getrusage ($cl_cv_proto_getrusage_arg1, struct rusage *);])dnl
    AC_CACHE_CHECK(whether getrusage works, cl_cv_func_getrusage_works, [
    AC_TRY_RUN([
#include <stdio.h>
#include <sys/types.h> /* NetBSD 1.0 needs this */
#include <sys/time.h>
#include <time.h> /* for time(2) */
#include <sys/resource.h>
int main ()
{
  struct rusage used, prev;
  time_t end = time(NULL)+2;
  int count = 0;

  if ((count = getrusage(RUSAGE_SELF, &prev))) {
    /* getrusage is defined but does not do anything. */
    /*fprintf(stderr,"getrusage failed: return=%d\n",count);*/
    return 1;
  }
  while (time(NULL) < end) {
    count++;
    getrusage(RUSAGE_SELF, &used);
    if ((used.ru_utime.tv_usec != prev.ru_utime.tv_usec)
        || (used.ru_utime.tv_sec != prev.ru_utime.tv_sec)
        || (used.ru_stime.tv_usec != prev.ru_stime.tv_usec)
        || (used.ru_stime.tv_sec != prev.ru_stime.tv_sec)) {
      /*fprintf(stderr,"success after %d runs\n",count);*/
      return 0;
    }
  }
  /* getrusage is defined but does not work. */
  /*fprintf(stderr,"failure after %d runs\n",count);*/
  return 1;
}],
cl_cv_func_getrusage_works=yes,
cl_cv_func_getrusage_works=no,
dnl When cross-compiling, don't assume anything.
cl_cv_func_getrusage_works="guessing no")])
  fi
  if test "$cl_cv_func_getrusage_works" = yes; then
    AC_DEFINE(HAVE_GETRUSAGE,,[have <sys/time.h>, the getrusage() function, the struct rusage type, and <sys/resource.h> defines RUSAGE_SELF])
    AC_DEFINE_UNQUOTED(RUSAGE_WHO_T,$cl_cv_proto_getrusage_arg1,[type of `who' in getrusage() declaration])
  fi
fi
])

dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

dnl From Bruno Haible, Marcus Daniels, Sam Steingold.

AC_PREREQ(2.57)

AC_DEFUN([CL_TIMES_CLOCK],
[AC_REQUIRE([CL_GETTIMEOFDAY])dnl
if test $ac_cv_func_gettimeofday = no -a $ac_cv_func_ftime = no; then
AC_CHECK_FUNC(times, , no_times=1)dnl
if test -z "$no_times"; then
AC_CACHE_CHECK(for times return value, cl_cv_func_times_return, [
AC_TRY_RUN([
#include <sys/types.h>
#include <time.h> /* needed for CLK_TCK */
#ifndef CLK_TCK
#include <sys/time.h> /* needed for CLK_TCK on SYSV PTX */
#endif
#include <sys/times.h>
int main ()
{ struct tms buffer;
  clock_t result1;
  clock_t result2;
  int ticks;
  result1 = times(&buffer);
  if ((result1 == (clock_t)0) || (result1 == (clock_t)(-1))) exit(1);
  sleep(1);
  result2 = times(&buffer);
  if ((result2 == (clock_t)0) || (result2 == (clock_t)(-1))) exit(1);
  ticks = result2 - result1;
  exit(!((ticks >= CLK_TCK/2) && (ticks <= 3*CLK_TCK/2)));
}], cl_cv_func_times_return=yes, cl_cv_func_times_return=no,
dnl When cross-compiling, don't assume anything.
cl_cv_func_times_return="guessing no")
])
case "$cl_cv_func_times_return" in
  *yes) AC_DEFINE(HAVE_TIMES_CLOCK,,[have the times() function and it returns the real time, but do not have the gettimeofday() or ftime() function]) ;;
  *no)  ;;
esac
fi
fi
])

m4_include([m4/cc.m4])
m4_include([m4/gmp.m4])
m4_include([m4/libtool.m4])