kc3-lang/libxml2/m4/ax_append_link_flags.m4

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• Hash : d8f6e760
  Author :
  Date : 2023-04-29T19:12:23
  

  Link with --undefined-version
  
  lld 16 defaults to --no-undefined-version but the version script can
  contain symbols disabled by configuration options.
  
  See #473.
  

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• m4/ax_append_link_flags.m4

• # ===========================================================================
  #   https://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
  # ===========================================================================
  #
  # SYNOPSIS
  #
  #   AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
  #
  # DESCRIPTION
  #
  #   For every FLAG1, FLAG2 it is checked whether the linker works with the
  #   flag.  If it does, the flag is added FLAGS-VARIABLE
  #
  #   If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is
  #   used. During the check the flag is always added to the linker's flags.
  #
  #   If EXTRA-FLAGS is defined, it is added to the linker's default flags
  #   when the check is done.  The check is thus made with the flags: "LDFLAGS
  #   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
  #   issue an error when a bad flag is given.
  #
  #   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
  #
  #   NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG.
  #   Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS.
  #
  # LICENSE
  #
  #   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
  #
  #   Copying and distribution of this file, with or without modification, are
  #   permitted in any medium without royalty provided the copyright notice
  #   and this notice are preserved.  This file is offered as-is, without any
  #   warranty.
  
  #serial 7
  
  AC_DEFUN([AX_APPEND_LINK_FLAGS],
  [AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
  AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
  for flag in $1; do
    AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3], [$4])
  done
  ])dnl AX_APPEND_LINK_FLAGS
  

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