kc3-lang/gnulib/m4/sys_un_h.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/sys_un_h.m4

• # sys_un_h.m4
  # serial 2
  dnl Copyright 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_ONCE([gl_SYS_UN_H],
  [
    AC_REQUIRE([AC_CANONICAL_HOST])
  
    dnl Check if UNIX domain sockets are supported.
    AC_REQUIRE([gl_SOCKET_FAMILY_UNIX])
  
    GL_GENERATE_SYS_UN_H=false
    if test $gl_cv_socket_unix = yes; then
      dnl Check if using a Windows version that supports AF_UNIX.
      dnl See <https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/>.
      if test "$ac_cv_header_winsock2_h" = yes \
         && test "$ac_cv_header_afunix_h" = yes; then
        GL_GENERATE_SYS_UN_H=true
      fi
      case "$host_os" in
        dnl On glibc systems, we need to include <string.h> before <sys/un.h>,
        dnl at least in C++ mode with clang.
        *-gnu* | gnu*) GL_GENERATE_SYS_UN_H=true ;;
      esac
    fi
  
    if $GL_GENERATE_SYS_UN_H; then
      AC_CHECK_HEADERS([sys/un.h])
      gl_CHECK_NEXT_HEADERS([sys/un.h])
  
      if test $ac_cv_header_sys_un_h = yes; then
        HAVE_SYS_UN_H=1
      else
        HAVE_SYS_UN_H=0
      fi
      AC_SUBST([HAVE_SYS_UN_H])
  
      dnl Checked in gl_SOCKET_FAMILY_UNIX.
      if test "$ac_cv_header_afunix_h" = yes; then
        HAVE_AFUNIX_H=1
      else
        HAVE_AFUNIX_H=0
      fi
      AC_SUBST([HAVE_AFUNIX_H])
    fi
  ])
  

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