kc3-lang/gnulib/m4/explicit_bzero.m4

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• Hash : 818572b3
  Author :
  Date : 2020-04-13T01:09:14
  

  explicit_bzero: Use memset_s() when available.
  
  Some OS define memset_s instead of explicit_bzero. Use it.
  
  * lib/explicit_bzero.c (__STDC_WANT_LIB_EXT1__): Define.
  (explicit_bzero): Use memset_s when available.
  * m4/explicit_bzero.m4 (gl_PREREQ_EXPLICIT_BZERO): Test for memset_s.
  
  Signed-off-by: Bastien Roucariès <rouca@debian.org>
  

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• m4/explicit_bzero.m4

• dnl Copyright 2017-2020 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_EXPLICIT_BZERO],
  [
    AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
  
    dnl Persuade glibc <string.h> to declare explicit_bzero.
    AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
  
    AC_CHECK_FUNCS_ONCE([explicit_bzero])
    if test $ac_cv_func_explicit_bzero = no; then
      HAVE_EXPLICIT_BZERO=0
    fi
  ])
  
  AC_DEFUN([gl_PREREQ_EXPLICIT_BZERO],
  [
    AC_CHECK_FUNCS([explicit_memset])
    AC_CHECK_FUNCS_ONCE([memset_s])
  ])
  

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