Added check for the table () system call in the linux kernel.

1998-06-13  Martin Baulig  <martin@home-of-linux.org>

	* gnome-libgtop-sysdeps.m4: Added check for the table ()
	system call in the linux kernel.

svn path=/trunk/; revision=253

diff --git a/macros/ChangeLog b/macros/ChangeLog
index 73a2c9a..f066a8a 100644 (file)
--- a/macros/ChangeLog
+++ b/macros/ChangeLog
@@ -1,3 +1,8 @@
+1998-06-13  Martin Baulig  <martin@home-of-linux.org>
+
+       * gnome-libgtop-sysdeps.m4: Added check for the table ()
+       system call in the linux kernel.
+
 1998-06-11  Raja R Harinath  <harinath@cs.umn.edu>
 
        * gnome-x-checks.m4 (USE_DEVGTK): Use AC_EGREP_CPP rather than

diff --git a/macros/gnome-libgtop-sysdeps.m4 b/macros/gnome-libgtop-sysdeps.m4
index 17c66f0..0993cba 100644 (file)
--- a/macros/gnome-libgtop-sysdeps.m4
+++ b/macros/gnome-libgtop-sysdeps.m4
@@ -17,12 +17,56 @@ AC_DEFUN([GNOME_LIBGTOP_SYSDEPS],[
        AC_SUBST(libgtop_use_machine_h)
        AC_SUBST(libgtop_need_server)
 
+       AC_ARG_WITH(linux-table,
+       [  --with-linux-table      Use the table () function from Martin Baulig],[
+       linux_table="$withval"],[linux_table=auto])
+
+       AC_MSG_CHECKING(for table function in Linux Kernel)
+
+       if test $linux_table = yes ; then
+         AC_CHECK_HEADER(linux/table.h, linux_table=yes, linux_table=no)
+       elif test $linux_table = auto ; then
+         AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <unistd.h>
+#include <linux/unistd.h>
+#include <linux/table.h>
+
+#include <syscall.h>
+
+static inline _syscall3 (int, table, int, type, union table *, tbl, const void *, param);
+
+int
+main (void)
+{
+       union table tbl;
+       int ret;
+
+       ret = table (TABLE_VERSION, NULL, NULL);
+
+       if (ret == -1)
+               exit (-errno);
+
+       exit (ret < 1 ? ret : 0);
+}
+], linux_table=yes, linux_table=no, linux_table=no)
+       fi
+
+       AC_MSG_RESULT($linux_table)
+
        AC_MSG_CHECKING(for libgtop sysdeps directory)
 
        case "$host_os" in
        linux*)
-         libgtop_sysdeps_dir=linux
-         libgtop_use_machine_h=yes
+         if test x$linux_table = xyes ; then
+           libgtop_sysdeps_dir=kernel
+           libgtop_use_machine_h=no
+         else
+           libgtop_sysdeps_dir=linux
+           libgtop_use_machine_h=yes
+         fi
          libgtop_need_server=no
          ;;
        sunos4*)