kc3-lang/gnulib/m4/totalorder.m4

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• Hash : b1f65faa
  Author :
  Date : 2024-10-17T21:52:41
  

  Use a warranty disclaimer in all-permissive license notices.
  
  * etc/license-notices/unlimited: Add a short warranty disclaimer
  sentence.
  * m4/*.m4: Update.
  * build-aux/prefix-gnulib-mk: Likewise.
  * HACKING: Likewise.
  

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• m4/totalorder.m4

• # totalorder.m4
  # serial 3
  dnl Copyright 2023-2024 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_TOTALORDERF],
  [
    AC_REQUIRE([gl_MATH_H_DEFAULTS])
    AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
  
    dnl glibc versions < 2.31 had an incompatible declaration of this function,
    dnl see <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=42760d764649ad82f5fe45a26cbdf2c2500409f7>
    AC_CACHE_CHECK([whether totalorderf has a non-standard declaration],
      [gl_cv_func_totalorderf_incompatible],
      [AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM(
            [[#include <math.h>
            ]],
            [[extern
              #ifdef __cplusplus
              "C"
              #endif
              int totalorderf (float const *, float const *);
            ]])
         ],
         [gl_cv_func_totalorderf_incompatible=no],
         [gl_cv_func_totalorderf_incompatible=yes])
      ])
    if test $gl_cv_func_totalorderf_incompatible = yes; then
      REPLACE_TOTALORDERF=1
    else
      gl_MATHFUNC([totalorderf], [int], [(float const *, float const *)])
      if test $gl_cv_func_totalorderf_no_libm != yes \
         && test $gl_cv_func_totalorderf_in_libm != yes; then
        HAVE_TOTALORDERF=0
      fi
    fi
    if test $HAVE_TOTALORDERF = 0 || test $REPLACE_TOTALORDERF = 1; then
      TOTALORDERF_LIBM='$(ISNANF_LIBM)'
      dnl Prerequisite of lib/totalorderf.c.
      gl_NAN_MIPS
    fi
    AC_SUBST([TOTALORDERF_LIBM])
  ])
  
  AC_DEFUN([gl_FUNC_TOTALORDER],
  [
    AC_REQUIRE([gl_MATH_H_DEFAULTS])
    AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
  
    dnl glibc versions < 2.31 had an incompatible declaration of this function,
    dnl see <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=42760d764649ad82f5fe45a26cbdf2c2500409f7>
    AC_CACHE_CHECK([whether totalorder has a non-standard declaration],
      [gl_cv_func_totalorder_incompatible],
      [AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM(
            [[#include <math.h>
            ]],
            [[extern
              #ifdef __cplusplus
              "C"
              #endif
              int totalorder (double const *, double const *);
            ]])
         ],
         [gl_cv_func_totalorder_incompatible=no],
         [gl_cv_func_totalorder_incompatible=yes])
      ])
    if test $gl_cv_func_totalorder_incompatible = yes; then
      REPLACE_TOTALORDER=1
    else
      gl_MATHFUNC([totalorder], [int], [(double const *, double const *)])
      if test $gl_cv_func_totalorder_no_libm != yes \
         && test $gl_cv_func_totalorder_in_libm != yes; then
        HAVE_TOTALORDER=0
      fi
    fi
    if test $HAVE_TOTALORDER = 0 || test $REPLACE_TOTALORDER = 1; then
      TOTALORDER_LIBM='$(ISNAND_LIBM)'
      dnl Prerequisite of lib/totalorder.c.
      gl_NAN_MIPS
    fi
    AC_SUBST([TOTALORDER_LIBM])
  ])
  
  AC_DEFUN([gl_FUNC_TOTALORDERL],
  [
    AC_REQUIRE([gl_MATH_H_DEFAULTS])
    AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
    AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
  
    dnl glibc versions < 2.31 had an incompatible declaration of this function,
    dnl see <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=42760d764649ad82f5fe45a26cbdf2c2500409f7>
    AC_CACHE_CHECK([whether totalorderl has a non-standard declaration],
      [gl_cv_func_totalorderl_incompatible],
      [AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM(
            [[#include <math.h>
            ]],
            [[extern
              #ifdef __cplusplus
              "C"
              #endif
              int totalorderl (long double const *, long double const *);
            ]])
         ],
         [gl_cv_func_totalorderl_incompatible=no],
         [gl_cv_func_totalorderl_incompatible=yes])
      ])
    if test $gl_cv_func_totalorderl_incompatible = yes; then
      REPLACE_TOTALORDERL=1
    else
      gl_MATHFUNC([totalorderl], [int],
        [(long double const *, long double const *)])
      if test $gl_cv_func_totalorderl_no_libm != yes \
         && test $gl_cv_func_totalorderl_in_libm != yes; then
        HAVE_TOTALORDERL=0
      fi
    fi
    if test $HAVE_TOTALORDERL = 0 || test $REPLACE_TOTALORDERL = 1; then
      dnl Find libraries needed to link lib/totalorderl.c.
      if test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1; then
        AC_REQUIRE([gl_FUNC_TOTALORDER])
        TOTALORDERL_LIBM="$TOTALORDER_LIBM"
      else
        TOTALORDERL_LIBM='$(ISNANL_LIBM)'
      fi
      dnl Prerequisite of lib/totalorderl.c.
      gl_LONG_DOUBLE_SIGN_LOCATION
      gl_NAN_MIPS
    fi
    AC_SUBST([TOTALORDERL_LIBM])
  ])
  

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