kc3-lang/gnulib/m4/c32rtomb.m4

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• Hash : b744688d
  Author :
  Date : 2024-04-04T11:16:15
  

  Make the serial numbers in *.m4 files effective.
  
  Reported by Sam James in
  <https://lists.gnu.org/archive/html/bug-gnulib/2024-04/msg00051.html>.
  
  * m4/*.m4: Apply sed -e '1s|^# \(.*[.]m4\) serial |# \1\n# serial |'.
  

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• m4/c32rtomb.m4

• # c32rtomb.m4
  # serial 7
  dnl Copyright (C) 2020-2024 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.
  
  AC_DEFUN([gl_FUNC_C32RTOMB],
  [
    AC_REQUIRE([gl_UCHAR_H_DEFAULTS])
    AC_REQUIRE([AC_CANONICAL_HOST])
  
    AC_REQUIRE([gl_MBRTOC32_SANITYCHECK])
  
    dnl Cf. gl_CHECK_FUNCS_ANDROID
    AC_CHECK_DECL([c32rtomb], , ,
      [[#ifdef __HAIKU__
         #include <stdint.h>
        #endif
        #include <uchar.h>
      ]])
    if test $ac_cv_have_decl_c32rtomb = yes; then
      dnl We can't use AC_CHECK_FUNC here, because c32rtomb() is defined as a
      dnl static inline function on Haiku 2020.
      AC_CACHE_CHECK([for c32rtomb], [gl_cv_func_c32rtomb],
        [AC_LINK_IFELSE(
           [AC_LANG_PROGRAM(
              [[#include <stdlib.h>
                #ifdef __HAIKU__
                 #include <stdint.h>
                #endif
                #include <uchar.h>
              ]],
              [[char buf[8];
                return c32rtomb (buf, 0, NULL) == 0;
              ]])
           ],
           [gl_cv_func_c32rtomb=yes],
           [gl_cv_func_c32rtomb=no])
        ])
    else
      gl_cv_func_c32rtomb=no
    fi
    if test $gl_cv_func_c32rtomb = no; then
      HAVE_C32RTOMB=0
    else
      dnl When we override mbrtoc32, redefining the meaning of the char32_t
      dnl values, we need to override c32rtomb as well, for consistency.
      if test $HAVE_WORKING_MBRTOC32 = 0; then
        REPLACE_C32RTOMB=1
      fi
      AC_CACHE_CHECK([whether c32rtomb return value is correct],
        [gl_cv_func_c32rtomb_retval],
        [
          dnl Initial guess, used when cross-compiling.
  changequote(,)dnl
          case "$host_os" in
            # Guess no on AIX.
            aix*) gl_cv_func_c32rtomb_retval="guessing no" ;;
            # Guess yes otherwise.
            *)    gl_cv_func_c32rtomb_retval="guessing yes" ;;
          esac
  changequote([,])dnl
          AC_RUN_IFELSE(
            [AC_LANG_SOURCE([[
  #include <stddef.h>
  #ifdef __HAIKU__
   #include <stdint.h>
  #endif
  #include <uchar.h>
  int main ()
  {
    int result = 0;
    if (c32rtomb (NULL, 0, NULL) != 1)
      result |= 1;
    return result;
  }]])],
            [gl_cv_func_c32rtomb_retval=yes],
            [gl_cv_func_c32rtomb_retval=no],
            [:])
        ])
      case "$gl_cv_func_c32rtomb_retval" in
        *yes) ;;
        *) AC_DEFINE([C32RTOMB_RETVAL_BUG], [1],
             [Define if the c32rtomb function has an incorrect return value.])
           REPLACE_C32RTOMB=1 ;;
      esac
    fi
  ])
  

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