acinclude.m4

linux 操作系统下对系统资源监控程序的编写

AC_MSG_CHECKING([for two-argument statfs with struct fs_data (Ultrix)])
AC_CACHE_VAL(fu_cv_sys_stat_fs_data,
[AC_TRY_RUN([#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_FS_TYPES_H
#include <sys/fs_types.h>
#endif
int main ()
{
struct fs_data fsd;
/* Ultrix's statfs returns 1 for success,
0 for not mounted, -1 for failure.  */
return (statfs (".", &fsd) != 1);
}],
fu_cv_sys_stat_fs_data=yes,
fu_cv_sys_stat_fs_data=no,
fu_cv_sys_stat_fs_data=no)])
AC_MSG_RESULT($fu_cv_sys_stat_fs_data)
if test $fu_cv_sys_stat_fs_data = yes; then
space=yes
AC_DEFINE(STAT_STATFS2_FS_DATA)
fi
fi

if test $space = no; then
# SVR2
AC_TRY_CPP([#include <sys/filsys.h>],
AC_DEFINE(STAT_READ_FILSYS) space=yes)
fi

if test -n "$list_mounted_fs" && test $space != no; then
DF_PROG="df"
# AC_LIBOBJ(fsusage)
# AC_LIBOBJ(mountlist)
fi

# Check for SunOS statfs brokenness wrt partitions 2GB and larger.
# If <sys/vfs.h> exists and struct statfs has a member named f_spare,
# enable the work-around code in fsusage.c.
AC_MSG_CHECKING([for statfs that truncates block counts])
AC_CACHE_VAL(fu_cv_sys_truncating_statfs,
[AC_TRY_COMPILE([
#if !defined(sun) && !defined(__sun)
choke -- this is a workaround for a Sun-specific problem
#endif
#include <sys/types.h>
#include <sys/vfs.h>],
[struct statfs t; long c = *(t.f_spare);],
fu_cv_sys_truncating_statfs=yes,
fu_cv_sys_truncating_statfs=no,
)])
if test $fu_cv_sys_truncating_statfs = yes; then
AC_DEFINE(STATFS_TRUNCATES_BLOCK_COUNTS)
fi
AC_MSG_RESULT($fu_cv_sys_truncating_statfs)

AC_CHECKING(for AFS)
test -d /afs && AC_DEFINE(AFS)
])

dnl GNOME_SUPPORT_CHECKS
dnl    Check for various support functions needed by the standard
dnl    Gnome libraries.  Sets LIBOBJS, might define some macros.
dnl    This should only be used when building the Gnome libs; 
dnl    Gnome clients should not need this macro.
AC_DEFUN([GNOME_SUPPORT_CHECKS],[
  # we need an `awk' to build `gnomesupport.h'
  AC_REQUIRE([AC_PROG_AWK])

  # this should go away soon
  need_gnome_support=yes

  AC_CHECK_FUNCS(getopt_long,,
   [AC_LIBOBJ(getopt)
    AC_LIBOBJ(getopt1)])

  # for `scandir'
  AC_HEADER_DIRENT

  # copied from `configure.in' of `libiberty'
  vars="program_invocation_short_name program_invocation_name sys_errlist"
  for v in $vars; do
    AC_MSG_CHECKING([for $v])
    AC_CACHE_VAL(gnome_cv_var_$v,
      [AC_TRY_LINK([int *p;], [extern int $v; p = &$v;],
		   [eval "gnome_cv_var_$v=yes"],
		   [eval "gnome_cv_var_$v=no"])])
    if eval "test \"`echo '$gnome_cv_var_'$v`\" = yes"; then
      AC_MSG_RESULT(yes)
      n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
      AC_DEFINE_UNQUOTED($n)
    else
      AC_MSG_RESULT(no)
    fi
  done

  AC_REPLACE_FUNCS(memmove mkstemp scandir strcasecmp strerror strndup strnlen)
  AC_REPLACE_FUNCS(strtok_r strtod strtol strtoul vasprintf vsnprintf)

  AC_CHECK_FUNCS(realpath,,AC_LIBOBJ(canonicalize))

  # to include `error.c' error.c has some HAVE_* checks
  AC_CHECK_FUNCS(vprintf doprnt strerror_r)
  # stolen from am_func_error_at_line
  AC_CACHE_CHECK([for error_at_line], am_cv_lib_error_at_line,
  [AC_TRY_LINK([],[error_at_line(0, 0, "", 0, "");],
              am_cv_lib_error_at_line=yes,
              am_cv_lib_error_at_line=no)])
  if test $am_cv_lib_error_at_line = no; then
    AC_LIBOBJ(error)
  fi
  
  # This is required if we declare setreuid () and setregid ().
  AC_TYPE_UID_T

  # see if we need to declare some functions.  Solaris is notorious for
  # putting functions into the `libc' but not listing them in the headers
  AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h dirent.h)
  GCC_NEED_DECLARATIONS(gethostname setreuid setregid getpagesize)
  GCC_NEED_DECLARATION(scandir,[
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
])

  AC_SUBST(need_gnome_support)

  AM_CONDITIONAL(BUILD_GNOME_SUPPORT, test "$need_gnome_support" = yes)
])


dnl This file is intended for use both internally in libgtop and in every program
dnl that wants to use it.
dnl
dnl It defines the following variables:
dnl
dnl * 'libgtop_sysdeps_dir'    - sysdeps dir for libgtop.
dnl * 'libgtop_use_machine_h'  - some of system dependend parts of libgtop provide
dnl                              their own header file. In this case we need to
dnl                              define 'HAVE_GLIBTOP_MACHINE_H'.
dnl * 'libgtop_need_server'    - is the server really needed? Defines 'NEED_LIBGTOP'
dnl                              if true; defines conditional 'NEED_LIBGTOP'.

AC_DEFUN([LIBGTOP_HACKER_TESTS],[
	AC_REQUIRE([AC_CANONICAL_HOST])

	AC_ARG_WITH(linux-table,
      [  --with-linux-table      Use the table () function from Martin Baulig],
	[linux_table="$withval"],[linux_table=auto])
	case "$host_os" in
	linux*)
	  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_MSG_CHECKING(for table function in Linux Kernel)
	    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)
	    AC_MSG_RESULT($linux_table)
	  fi
	  if test $linux_table = yes ; then
	    AC_DEFINE(HAVE_LINUX_TABLE)
	  fi
	  ;;
	esac
])

AC_DEFUN([GNOME_LIBGTOP_SYSDEPS],[
	AC_REQUIRE([AC_CANONICAL_HOST])

	AC_SUBST(libgtop_sysdeps_dir)
	AC_SUBST(libgtop_use_machine_h)
	AC_SUBST(libgtop_need_server)

	AC_ARG_WITH(libgtop-examples,
	[  --with-libgtop-examples Build the libgtop examples (default=no)],[
	build_examples="$withval"], [build_examples=no])

	AM_CONDITIONAL(EXAMPLES, test x"$build_examples" = xyes)

	AC_ARG_ENABLE(hacker-mode,
	[  --enable-hacker-mode    Enable building of unstable sysdeps],
	[hacker_mode="$enableval"], [hacker_mode=no])

	AM_CONDITIONAL(HACKER_MODE, test x"$hacker_mode" = xyes)

	linux_table=auto
	if test x$hacker_mode = xyes ; then
	  LIBGTOP_HACKER_TESTS
	fi
	AM_CONDITIONAL(LINUX_TABLE, test $linux_table = yes)

	AC_ARG_WITH(libgtop-smp,
	[  --with-libgtop-smp      Enable SMP support (default-auto)],[
	libgtop_smp="$withval"],[libgtop_smp=auto])

	if test $libgtop_smp = auto ; then
	  AC_MSG_CHECKING(whether to enable SMP support)
	  case "$host_os" in
	  linux*)
	    libgtop_smp=yes
	    ;;
	  aix*)
	    libgtop_smp=yes
	    ;;
	  *)
	    libgtop_smp=no
	    ;;
	  esac
	  AC_MSG_RESULT($libgtop_smp)
	fi

	if test $libgtop_smp = yes ; then
	  AC_DEFINE(HAVE_LIBGTOP_SMP)
	fi

	AM_CONDITIONAL(LIBGTOP_SMP, test $libgtop_smp = yes)

	AC_MSG_CHECKING(for libgtop sysdeps directory)

	case "$host_os" in
	linux*)
	  if test x$linux_table = xyes ; then
	    libgtop_sysdeps_dir=kernel
	    libgtop_use_machine_h=no
	  else
	    libgtop_sysdeps_dir=linux
	    libgtop_use_machine_h=no
	    libgtop_have_sysinfo=yes
	  fi
	  libgtop_need_server=no
	  ;;
	freebsd*|netbsd*|openbsd*|bsdi*)
	  libgtop_sysdeps_dir=freebsd
	  libgtop_use_machine_h=yes
	  libgtop_need_server=yes
	  libgtop_postinstall='chgrp kmem $(bindir)/libgtop_server && chmod 2755 $(bindir)/libgtop_server'
	  ;;
	solaris*)
	  libgtop_sysdeps_dir=solaris
	  libgtop_use_machine_h=yes
	  libgtop_need_server=yes
	  libgtop_postinstall='chgrp sys $(bindir)/libgtop_server && chmod 2755 $(bindir)/libgtop_server'
	  ;;
        aix*)
	  libgtop_sysdeps_dir=aix
	  libgtop_use_machine_h=yes
	  libgtop_need_server=yes
	  libgtop_have_sysinfo=yes
	  libgtop_postinstall='chgrp system $(bindir)/libgtop_server && chmod g+s $(bindir)/libgtop_server2'
          ;;
	*)
	  if test x$hacker_mode = xyes ; then
	    case "$host_os" in
	    sunos4*)
	      #Please note that this port is obsolete and not working at
	      #all. It is only useful for people who want to fix it ... :-)
	      libgtop_sysdeps_dir=sun4
	      libgtop_use_machine_h=yes
	      libgtop_need_server=yes
	      ;;
	    osf*)
	      libgtop_sysdeps_dir=osf1
	      libgtop_use_machine_h=yes
	      libgtop_need_server=yes
	      ;;
	    *)
	      libgtop_sysdeps_dir=stub
	      libgtop_use_machine_h=no
	      libgtop_need_server=no
	      ;;
	    esac
	  else
	    libgtop_sysdeps_dir=stub
	    libgtop_use_machine_h=no
	    libgtop_need_server=no
	  fi
	  ;;
	esac

	test -z "$libgtop_postinstall" && libgtop_postinstall=:

	AC_MSG_RESULT($libgtop_sysdeps_dir)

	AC_SUBST(libgtop_sysdeps_dir)
	AC_SUBST(libgtop_postinstall)
	AC_SUBST(libgtop_have_sysinfo)

	case "$host_os" in
	*bsd*)
	  AC_CHECK_HEADERS(net/if_var.h)
	  AC_MSG_CHECKING([for I4B])
	  AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>

#include <net/if.h>
#include <net/if_types.h>

#ifdef HAVE_NET_IF_VAR_H
#include <net/if_var.h>
#endif

#include <net/netisr.h>
#include <net/route.h>

#if defined(__FreeBSD__) || defined(__NetBSD__)
#include <net/if_sppp.h>
#else
#include <i4b/sppp/if_sppp.h>
#endif
],[
	size_t size = sizeof (struct sppp);
], have_i4b=yes, have_i4b=no)
	  AC_MSG_RESULT($have_i4b)
	  if test x$have_i4b = xyes; then
	    AC_DEFINE(HAVE_I4B)
	    AC_MSG_CHECKING([for I4B accounting])
	    AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>

#include <net/if.h>
#include <net/if_types.h>

#ifdef HAVE_NET_IF_VAR_H
#include <net/if_var.h>
#endif

#include <net/netisr.h>
#include <net/route.h>

#if defined(__FreeBSD__) || defined(__NetBSD__)
#include <net/if_sppp.h>
#else
#include <i4b/sppp/if_sppp.h>
#endif

#include <machine/i4b_acct.h>
],[
	size_t size = sizeof (struct i4bisppp_softc);
], have_i4b_acct=yes, have_i4b_acct=no)
	    AC_MSG_RESULT($have_i4b_acct)
	    if test x$have_i4b_acct = xyes ; then
	      AC_DEFINE(HAVE_I4B_ACCT)
	    else
	      AC_WARN([
*** I4B accounting disabled - you won't get any PPP statistics.
*** Read "misc/i4b_acct.txt" in the LibGTop source directory
*** to see how to enable it.])
	    fi
	  fi
	  ;;
	linux*)
	  os_major_version=`uname -r | sed 's/-pre[[0-9]]*//' | \
	    sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
	  os_minor_version=`uname -r | sed 's/-pre[[0-9]]*//' | \
	    sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
	  os_micro_version=`uname -r | sed 's/-pre[[0-9]]*//' | \
	    sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
	  os_version_expr="$os_major_version 65536 * $os_minor_version 256 * + $os_micro_version + p q"

	  AC_CHECK_HEADERS(linux/version.h, have_linux_version_h=yes,
	    have_linux_version_h=no)

	  if test x$have_linux_version_h = xyes ; then
	    version_code=`cat /usr/include/linux/version.h | \
	      grep \#define | grep LINUX_VERSION_CODE`
	    os_version_code=`echo $version_code | \
	      sed 's/^.*LINUX_VERSION_CODE[[ \t]]*\([[0-9]]*\).*$/\1/'`
	  else
	    os_version_code=`echo "$os_version_expr" | dc`
	  fi

	  AC_MSG_CHECKING(for Linux kernel version code)
	  AC_DEFINE_UNQUOTED(GLIBTOP_LINUX_VERSION_CODE, $os_version_code)
	  AC_MSG_RESULT($os_version_code)
	  ;;
	solaris*)
	  os_major_version=`uname -r | sed 's/\([[0-9]]*\).\([[0-9]]\)\.*\([[0-9]]*\)/\1/'`
	  os_minor_version=`uname -r | sed 's/\([[0-9]]*\).\([[0-9]]\)\.*\([[0-9]]*\)/\2/'`
	  os_micro_version=`uname -r | sed 's/\([[0-9]]*\).\([[0-9]]\)\.*\([[0-9]]*\)/\3/'`
	  test -z "$os_micro_version" && os_micro_version=0
	  os_version_expr="$os_major_version 100 * $os_minor_version 10 * + $os_micro_version + p q"
	  os_version_code=`echo "$os_version_expr" | dc`

	  AC_MSG_CHECKING(for Solaris release code)
	  AC_DEFINE_UNQUOTED(GLIBTOP_SOLARIS_RELEASE, $os_version_code)
	  AC_MSG_RESULT($os_version_code)
	  ;;
	esac

	AC_MSG_CHECKING(for machine.h in libgtop sysdeps dir)
	AC_MSG_RESULT($libgtop_use_machine_h)

	AC_MSG_CHECKING(whether we need libgtop)
	AC_MSG_RESULT($libgtop_need_server)

	if test x$libgtop_need_server = xyes ; then
	  AC_DEFINE(NEED_LIBGTOP)
	fi

	if test x$libgtop_use_machine_h = xyes ; then
	  AC_DEFINE(HAVE_GLIBTOP_MACHINE_H)
	fi

	AM_CONDITIONAL(NEED_LIBGTOP, test x$libgtop_need_server = xyes)
])