fenv-rounding.m4

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Date : 2025-09-10T23:22:53

Remove support for IRIX.

* all-modules: Update comments.
* build-aux/install-reloc: Likewise.
* build-aux/reloc-ldflags: Likewise.
* gnulib-tool: Likewise.
* gnulib-tool.py: Likewise.
* gnulib-tool.sh: Likewise.
* lib/aligned-malloc.h: Likewise.
* lib/boot-time.c: Likewise.
* lib/c32is-impl.h: Likewise.
* lib/c32srtombs-state.c: Likewise.
* lib/c32to-impl.h: Likewise.
* lib/c32width.c: Likewise.
* lib/errno.in.h: Likewise.
* lib/euidaccess.c: Likewise.
* lib/fbufmode.c: Likewise.
* lib/fenv-except-state-get.c: Likewise.
* lib/fenv-except-state-set.c: Likewise.
* lib/fenv-except-tracking-clear.c: Likewise.
* lib/fenv-except-tracking-set.c: Likewise.
* lib/fenv-except-tracking-test.c: Likewise.
* lib/fenv-except-trapping.c: Likewise.
* lib/fenv-round.c: Likewise.
* lib/fflush.c: Likewise.
* lib/fileblocks.c: Likewise.
* lib/forkpty.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/fsusage.c: Likewise.
* lib/fwritable.c: Likewise.
* lib/fwriting.c: Likewise.
* lib/getdomainname.c: Likewise.
* lib/idpriv-drop.c: Likewise.
* lib/idpriv-droptemp.c: Likewise.
* lib/limits.in.h: Likewise.
* lib/mbrtoc16.c: Likewise.
* lib/mbrtoc32.c: Likewise.
* lib/mbsrtoc32s-state.c: Likewise.
* lib/mbsrtowcs-state.c: Likewise.
* lib/mbtowc-lock.h: Likewise.
* lib/minmax.h: Likewise.
* lib/netdb.in.h: Likewise.
* lib/pipe-filter-ii.c: Likewise.
* lib/posix_openpt.c: Likewise.
* lib/ptsname_r.c: Likewise.
* lib/readutmp.c: Likewise.
* lib/readutmp.h: Likewise.
* lib/resource-ext.h: Likewise.
* lib/safe-read.h: Likewise.
* lib/safe-write.h: Likewise.
* lib/save-cwd.c: Likewise.
* lib/stdbool.in.h: Likewise.
* lib/striconv.c: Likewise.
* lib/striconveh.c: Likewise.
* lib/termcap.h: Likewise.
* lib/terminfo.h: Likewise.
* lib/unistd.in.h: Likewise.
* lib/vasnprintf.c: Likewise.
* lib/wcrtomb.c: Likewise.
* lib/wcsrtombs-state.c: Likewise.
* m4/fenv-environment.m4: Likewise.
* m4/fenv-exceptions-state.m4: Likewise.
* m4/fenv-exceptions-tracking.m4: Likewise.
* m4/fenv-rounding.m4: Likewise.
* m4/fmod.m4: Likewise.
* m4/getdomainname.m4: Likewise.
* m4/getloadavg.m4: Likewise.
* m4/getopt.m4: Likewise.
* m4/hypot.m4: Likewise.
* m4/hypotf.m4: Likewise.
* m4/hypotl.m4: Likewise.
* m4/iconv.m4: Likewise.
* m4/intl-thread-locale.m4: Likewise.
* m4/largefile.m4: Likewise.
* m4/libdl.m4: Likewise.
* m4/locale-ja.m4: Likewise.
* m4/locale_h.m4: Likewise.
* m4/log.m4: Likewise.
* m4/log10.m4: Likewise.
* m4/log10f.m4: Likewise.
* m4/logf.m4: Likewise.
* m4/modf.m4: Likewise.
* m4/modff.m4: Likewise.
* m4/modfl.m4: Likewise.
* m4/pthread-rwlock.m4: Likewise.
* m4/semaphore.m4: Likewise.
* m4/socklen.m4: Likewise.
* m4/stdint.m4: Likewise.
* m4/strtod.m4: Likewise.
* m4/strtof.m4: Likewise.
* m4/strtold.m4: Likewise.
* modules/sigsegv: Likewise.
* posix-modules: Likewise.
* pygnulib/GLImport.py: Likewise.
* tests/init.sh: Likewise.
* tests/test-echo.sh: Likewise.
* tests/test-isatty.c: Likewise.
* tests/test-math-h.c: Likewise.
* tests/test-nonblocking-pipe.h: Likewise.
* tests/test-nonblocking-socket.h: Likewise.
* tests/test-strtod.h: Likewise.
* tests/test-strtof.h: Likewise.
* tests/test-strtold.h: Likewise.
* tests/test-vasnprintf.c: Likewise.
* tests/test-vasnwprintf.c: Likewise.

Download

m4/fenv-rounding.m4

# fenv-rounding.m4
# serial 3
dnl Copyright (C) 2023-2025 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_FENV_ROUNDING],
[
  AC_REQUIRE([gl_FENV_H_DEFAULTS])
  AC_REQUIRE([AC_CANONICAL_HOST])

  dnl On FreeBSD 11/i386, fesetround needs -lm while fegetround doesn't.
  gl_MATHFUNC([fesetround], [int], [(int)], [#include <fenv.h>])
  if test $gl_cv_func_fesetround_no_libm = yes \
     || test $gl_cv_func_fesetround_in_libm = yes; then
    dnl The fesetround function does not work on MSVC 14.
    AC_CACHE_CHECK([whether fesetround works],
      [gl_cv_func_fesetround_works],
      [case "$host_os" in
         # Guess no on native Windows other than mingw.
         mingw* | windows*)
           AC_EGREP_CPP([Problem], [
#ifndef __MINGW32__
 Problem
#endif
             ],
             [gl_cv_func_fesetround_works="guessing no"],
             [gl_cv_func_fesetround_works="guessing yes"])
           ;;
         *) gl_cv_func_fesetround_works="guessing yes" ;;
       esac
      ])
    case "$gl_cv_func_fesetround_works" in
      *yes) ;;
      *) REPLACE_FESETROUND=1 ;;
    esac
    if test $REPLACE_FESETROUND = 1; then
      dnl One more function is defined in the same compilation unit.
      REPLACE_FEGETROUND=1
      FENV_ROUNDING_LIBM=
    else
      dnl It needs linking with -lm on
      dnl glibc, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, Solaris, Android.
      if test $gl_cv_func_fesetround_no_libm = yes; then
        FENV_ROUNDING_LIBM=
      else
        FENV_ROUNDING_LIBM=-lm
      fi
    fi
  else
    HAVE_FEGETROUND=0
    HAVE_FESETROUND=0
    FENV_ROUNDING_LIBM=
  fi
  if test $HAVE_FESETROUND = 0 || test $REPLACE_FESETROUND = 1; then
    gl_PREREQ_FENV_ROUNDING
    dnl Possibly need -lm for fpgetround(), fpsetround().
    if test $gl_cv_func_fpsetround_no_libm = no \
       && test $gl_cv_func_fpsetround_in_libm = yes \
       && test -z "$FENV_ROUNDING_LIBM"; then
      FENV_ROUNDING_LIBM=-lm
    fi
  fi
  AC_SUBST([FENV_ROUNDING_LIBM])
])

dnl Prerequisites of lib/fenv-round.c.
AC_DEFUN([gl_PREREQ_FENV_ROUNDING],
[
  gl_MATHFUNC([fpsetround], [fp_rnd], [(fp_rnd)],
    [#include <ieeefp.h>
    ])
  if test $gl_cv_func_fpsetround_no_libm = yes \
     || test $gl_cv_func_fpsetround_in_libm = yes; then
    AC_DEFINE([HAVE_FPSETROUND], [1],
      [Define to 1 if you have the 'fpsetround' function.])
  fi
])

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kc3-lang/gnulib/m4/fenv-rounding.m4

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m4/fenv-rounding.m4