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Diffstat (limited to 'm4/physmem.m4')
| -rw-r--r-- | m4/physmem.m4 | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/m4/physmem.m4 b/m4/physmem.m4 new file mode 100644 index 000000000..824db10fa --- /dev/null +++ b/m4/physmem.m4 @@ -0,0 +1,39 @@ +# physmem.m4 serial 2 +dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +# Check for the external symbol, _system_configuration, +# a struct with member `physmem'. +AC_DEFUN([gl_SYS__SYSTEM_CONFIGURATION], + [AC_CACHE_CHECK(for external symbol _system_configuration, + gl_cv_var__system_configuration, + [AC_LINK_IFELSE([AC_LANG_PROGRAM( + [[#include <sys/systemcfg.h> + ]], + [double x = _system_configuration.physmem;])], + [gl_cv_var__system_configuration=yes], + [gl_cv_var__system_configuration=no])]) + + if test $gl_cv_var__system_configuration = yes; then + AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, + [Define to 1 if you have the external variable, + _system_configuration with a member named physmem.]) + fi + ] +) + +AC_DEFUN([gl_PHYSMEM], +[ + # Prerequisites of lib/physmem.c. + AC_CHECK_HEADERS_ONCE(unistd.h) + AC_CHECK_HEADERS([sys/pstat.h sys/sysmp.h sys/sysinfo.h \ + machine/hal_sysinfo.h sys/table.h sys/param.h sys/sysctl.h \ + sys/systemcfg.h],,, [AC_INCLUDES_DEFAULT]) + + AC_CHECK_FUNCS(pstat_getstatic pstat_getdynamic sysmp getsysinfo sysctl table) + AC_REQUIRE([gl_SYS__SYSTEM_CONFIGURATION]) +]) |