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47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
# physmem.m4 serial 11
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dnl Copyright (C) 2002-2003, 2005-2006, 2008-2017 Free Software Foundation,
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dnl Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# Check for the external symbol, _system_configuration,
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# a struct with member 'physmem'.
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AC_DEFUN([gl_SYS__SYSTEM_CONFIGURATION],
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[AC_CACHE_CHECK([for external symbol _system_configuration],
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gl_cv_var__system_configuration,
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[AC_LINK_IFELSE([AC_LANG_PROGRAM(
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[[#include <sys/systemcfg.h>
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]],
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[[double x = _system_configuration.physmem;
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if (x > 0.0) return 0;]])],
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[gl_cv_var__system_configuration=yes],
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[gl_cv_var__system_configuration=no])])
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if test $gl_cv_var__system_configuration = yes; then
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AC_DEFINE([HAVE__SYSTEM_CONFIGURATION], [1],
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[Define to 1 if you have the external variable,
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_system_configuration with a member named physmem.])
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fi
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]
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)
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AC_DEFUN([gl_PHYSMEM],
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[
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# Prerequisites of lib/physmem.c.
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AC_CHECK_HEADERS([sys/pstat.h sys/sysmp.h sys/sysinfo.h \
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machine/hal_sysinfo.h sys/table.h sys/param.h sys/systemcfg.h],,,
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[AC_INCLUDES_DEFAULT])
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dnl <sys/sysctl.h> requires <sys/param.h> on OpenBSD 4.0.
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AC_CHECK_HEADERS([sys/sysctl.h],,,
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[AC_INCLUDES_DEFAULT
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#if HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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])
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AC_CHECK_FUNCS([pstat_getstatic pstat_getdynamic sysmp getsysinfo sysctl table sysinfo])
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AC_CHECK_MEMBERS([struct sysinfo.mem_unit],,, [[#include <sys/sysinfo.h>]])
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AC_REQUIRE([gl_SYS__SYSTEM_CONFIGURATION])
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])
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