modf.m4

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Hash : 19adc7a2
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Date : 2025-09-09T12:50:18

Remove support for OSF/1.

* all-modules: Update comments.
* build-aux/install-reloc: Likewise.
* gnulib-tool: Likewise.
* gnulib-tool.py: Likewise.
* gnulib-tool.sh: Likewise.
* lib/calloc.c: Likewise.
* lib/euidaccess.c: Likewise.
* lib/fbufmode.c: Likewise.
* lib/fflush.c: Likewise.
* lib/fpending.c: Likewise.
* lib/fpurge.c: Likewise.
* lib/freadable.c: Likewise.
* lib/freadahead.c: Likewise.
* lib/freading.c: Likewise.
* lib/freadptr.c: Likewise.
* lib/freadseek.c: Likewise.
* lib/fseeko.c: Likewise.
* lib/fseterr.c: Likewise.
* lib/fwritable.c: Likewise.
* lib/fwriting.c: Likewise.
* lib/get-permissions.c: Likewise.
* lib/get-rusage-as.c: Likewise.
* lib/getdomainname.c: Likewise.
* lib/getpass.c: Likewise.
* lib/glthread/spin.c: Likewise.
* lib/idpriv-drop.c: Likewise.
* lib/idpriv-droptemp.c: Likewise.
* lib/log10l.c: Likewise.
* lib/login_tty.c: Likewise.
* lib/minmax.h: Likewise.
* lib/mountlist.c: Likewise.
* lib/netdb.in.h: Likewise.
* lib/nproc.c: Likewise.
* lib/passfd.c: Likewise.
* lib/posix_openpt.c: Likewise.
* lib/resource-ext.h: Likewise.
* lib/safe-read.h: Likewise.
* lib/safe-write.h: Likewise.
* lib/stdint.in.h: Likewise.
* lib/stdio.in.h: Likewise.
* lib/string.in.h: Likewise.
* lib/sys-limits.h: Likewise.
* lib/termcap.h: Likewise.
* lib/terminfo.h: Likewise.
* lib/ttyname_r.c: Likewise.
* lib/vasnprintf.c: Likewise.
* lib/wait-process.c: Likewise.
* m4/fmal.m4: Likewise.
* m4/getdomainname.m4: Likewise.
* m4/getopt.m4: Likewise.
* m4/hypot.m4: Likewise.
* m4/hypotf.m4: Likewise.
* m4/hypotl.m4: Likewise.
* m4/iconv.m4: Likewise.
* m4/iconv_open-utf.m4: Likewise.
* m4/imaxabs.m4: Likewise.
* m4/imaxdiv.m4: Likewise.
* m4/largefile.m4: Likewise.
* m4/link-follow.m4: Likewise.
* m4/locale-fr.m4: Likewise.
* m4/locale-ja.m4: Likewise.
* m4/locale_h.m4: Likewise.
* m4/lock.m4: Likewise.
* m4/log10l.m4: Likewise.
* m4/mkstemp.m4: Likewise.
* m4/mmap-anon.m4: Likewise.
* m4/modf.m4: Likewise.
* m4/modff.m4: Likewise.
* m4/modfl.m4: Likewise.
* m4/semaphore.m4: Likewise.
* m4/socklen.m4: Likewise.
* m4/strerror_r.m4: Likewise.
* m4/terminfo.m4: Likewise.
* m4/wcwidth.m4: Likewise.
* posix-modules: Likewise.
* tests/havelib/README: Likewise.
* tests/init.sh: Likewise.
* tests/socket-client.h: Likewise.
* tests/socket-server.h: Likewise.
* tests/test-echo.sh: Likewise.
* tests/test-nonblocking-socket.h: Likewise.
* tests/test-strtod.h: Likewise.
* tests/test-strtof.h: Likewise.

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m4/modf.m4

# modf.m4
# serial 14
dnl Copyright (C) 2011-2025 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl This file is offered as-is, without any warranty.

AC_DEFUN([gl_FUNC_MODF],
[
  m4_divert_text([DEFAULTS], [gl_modf_required=plain])
  AC_REQUIRE([gl_MATH_H_DEFAULTS])

  dnl Determine MODF_LIBM.
  gl_MATHFUNC([modf], [double], [(double, double *)])

  m4_ifdef([gl_FUNC_MODF_IEEE], [
    if test $gl_modf_required = ieee && test $REPLACE_MODF = 0; then
      AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
      AC_CACHE_CHECK([whether modf works according to ISO C 99 with IEC 60559],
        [gl_cv_func_modf_ieee],
        [
          saved_LIBS="$LIBS"
          LIBS="$LIBS $MODF_LIBM"
          AC_RUN_IFELSE(
            [AC_LANG_SOURCE([[
#ifndef __NO_MATH_INLINES
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
]gl_DOUBLE_MINUS_ZERO_CODE[
]gl_DOUBLE_SIGNBIT_CODE[
/* Compare two numbers with ==.
   This is a separate function because IRIX 6.5 "cc -O" miscompiles an
   'x == x' test.  */
static int
numeric_equal (double x, double y)
{
  return x == y;
}
static double dummy (double x, double *iptr) { return 0; }
double zero;
double minus_one = - 1.0;
int main (int argc, char *argv[])
{
  double (* volatile my_modf) (double, double *) = argc ? modf : dummy;
  int result = 0;
  double i;
  double f;
  /* Test modf(NaN,...).
     This test fails on NetBSD 5.1, Cygwin.  */
  f = my_modf (zero / zero, &i);
  if (numeric_equal (f, f))
    result |= 1;
  /* Test modf(-Inf,...).
     This test fails on FreeBSD 6.4, OpenBSD 6.7, IRIX 6.5.  */
  f = my_modf (minus_one / zero, &i);
  if (!(f == 0.0) || (signbitd (minus_zerod) && !signbitd (f)))
    result |= 2;
  return result;
}
            ]])],
            [gl_cv_func_modf_ieee=yes],
            [gl_cv_func_modf_ieee=no],
            [case "$host_os" in
                                   # Guess yes on glibc systems.
               *-gnu* | gnu*)      gl_cv_func_modf_ieee="guessing yes" ;;
                                   # Guess yes on musl systems.
               *-musl* | midipix*) gl_cv_func_modf_ieee="guessing yes" ;;
                                   # Guess yes on MSVC, no on mingw.
               windows*-msvc*)     gl_cv_func_modf_ieee="guessing yes" ;;
               mingw* | windows*)  AC_EGREP_CPP([Known], [
#ifdef _MSC_VER
 Known
#endif
                                     ],
                                     [gl_cv_func_modf_ieee="guessing yes"],
                                     [gl_cv_func_modf_ieee="guessing no"])
                                   ;;
                                   # If we don't know, obey --enable-cross-guesses.
               *)                  gl_cv_func_modf_ieee="$gl_cross_guess_normal" ;;
             esac
            ])
          LIBS="$saved_LIBS"
        ])
      case "$gl_cv_func_modf_ieee" in
        *yes) ;;
        *) REPLACE_MODF=1 ;;
      esac
    fi
  ])
  if test $REPLACE_MODF = 1; then
    dnl Find libraries needed to link lib/modf.c.
    AC_REQUIRE([gl_FUNC_TRUNC])
    MODF_LIBM="$TRUNC_LIBM"
  fi
])

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kc3-lang/gnulib/m4/modf.m4

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m4/modf.m4