| # sys_wait_h.m4 serial 6 |
| dnl Copyright (C) 2008-2021 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_SYS_WAIT_H], |
| [ |
| AC_REQUIRE([gl_SYS_WAIT_H_DEFAULTS]) |
| |
| dnl <sys/wait.h> is always overridden, because of GNULIB_POSIXCHECK. |
| gl_CHECK_NEXT_HEADERS([sys/wait.h]) |
| |
| dnl Ensure the type pid_t gets defined. |
| AC_REQUIRE([AC_TYPE_PID_T]) |
| |
| dnl Check for declarations of anything we want to poison if the |
| dnl corresponding gnulib module is not in use. |
| gl_WARN_ON_USE_PREPARE([[#include <sys/wait.h>]], |
| [waitpid]) |
| ]) |
| |
| AC_DEFUN([gl_SYS_WAIT_MODULE_INDICATOR], |
| [ |
| dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
| AC_REQUIRE([gl_SYS_WAIT_H_DEFAULTS]) |
| gl_MODULE_INDICATOR_SET_VARIABLE([$1]) |
| dnl Define it also as a C macro, for the benefit of the unit tests. |
| gl_MODULE_INDICATOR_FOR_TESTS([$1]) |
| ]) |
| |
| AC_DEFUN([gl_SYS_WAIT_H_DEFAULTS], |
| [ |
| GNULIB_WAITPID=0; AC_SUBST([GNULIB_WAITPID]) |
| dnl Assume proper GNU behavior unless another module says otherwise. |
| ]) |
