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[Bug-gnulib] physmem.m4 support for ports to various hosts
From: |
Paul Eggert |
Subject: |
[Bug-gnulib] physmem.m4 support for ports to various hosts |
Date: |
16 Aug 2003 02:31:11 -0700 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 |
I installed this patch, taken from coreutils with modifications.
This patch is a necessary companion to
<http://mail.gnu.org/archive/html/bug-gnulib/2003-08/msg00102.html>;
I should have made it one patch, but didn't notice the discrepancy
until just now.
2003-08-16 Jim Meyering <address@hidden>
and Paul Eggert <address@hidden>
* physmem.m4 (gl_SYS__SYSTEM_CONFIGURATION): New macro.
(gl_PHYSMEM): Use it.
Also check for `table' function.
Check for new headers and functions.
Add check for sys/sysmp.h.
With suggestions from Kaveh Ghazi.
Ignore headers that are present but cannot be compiled. This
avoids spurious warnings on Solaris 9 sparc with Forte Developer 7
C 5.4.
Index: physmem.m4
===================================================================
RCS file: /cvsroot/gnulib/gnulib/m4/physmem.m4,v
retrieving revision 1.1
retrieving revision 1.2
diff -p -u -r1.1 -r1.2
--- physmem.m4 31 Dec 2002 13:42:07 -0000 1.1
+++ physmem.m4 16 Aug 2003 09:25:58 -0000 1.2
@@ -1,15 +1,39 @@
-# physmem.m4 serial 1
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
+# 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],
[
- dnl Prerequisites of lib/physmem.c.
+ # Prerequisites of lib/physmem.c.
AC_CHECK_HEADERS_ONCE(unistd.h)
- AC_CHECK_HEADERS(sys/pstat.h)
- AC_CHECK_FUNCS(pstat_getstatic pstat_getdynamic)
+ 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])
])
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