| dnl Copyright 2017-2021 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_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]) |
| ]) |
