ltl2ba-nix/m4/sys_resource_h.m4
2018-07-06 14:27:08 +02:00

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# sys_resource_h.m4 serial 2
dnl Copyright (C) 2012-2018 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_HEADER_SYS_RESOURCE],
[
AC_REQUIRE([gl_SYS_RESOURCE_H_DEFAULTS])
dnl <sys/resource.h> is always overridden, because of GNULIB_POSIXCHECK.
gl_CHECK_NEXT_HEADERS([sys/resource.h])
if test $ac_cv_header_sys_resource_h = yes; then
HAVE_SYS_RESOURCE_H=1
else
HAVE_SYS_RESOURCE_H=0
fi
AC_SUBST([HAVE_SYS_RESOURCE_H])
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([[
#if HAVE_SYS_RESOURCE_H
/* At least FreeBSD 5.0 needs extra headers before <sys/resource.h>
will compile. */
# include <sys/types.h>
# include <sys/time.h>
# include <sys/resource.h>
#endif
]],
[getrusage])
])
AC_DEFUN([gl_SYS_RESOURCE_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_SYS_RESOURCE_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_RESOURCE_H_DEFAULTS],
[
GNULIB_GETRUSAGE=0; AC_SUBST([GNULIB_GETRUSAGE])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_GETRUSAGE=1; AC_SUBST([HAVE_GETRUSAGE])
])