DEVEL15-remove-administration-reference-20080627

[openafs.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index adc2b5e..288ac54 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -35,10 +35,14 @@ AC_ARG_ENABLE( bitmap-later,
 [  --enable-bitmap-later               enable fast startup of file server by not reading bitmap till needed],, enable_bitmap_later="no")
 AC_ARG_ENABLE( demand-attach-fs,
 [  --enable-demand-attach-fs           enable Demand Attach Fileserver (please see documentation)],, enable_demand_attach_fs="no")
+AC_ARG_ENABLE( disconnected,
+[  --enable-disconnected               enable disconnected support in cache manager (experimental)],, enable_disconnected="no")
 AC_ARG_ENABLE( unix-sockets,
 [  --enable-unix-sockets               enable use of unix domain sockets for fssync],, enable_unix_sockets="yes")
 AC_ARG_ENABLE( full-vos-listvol-switch,
 [  --disable-full-vos-listvol-switch    disable vos full listvol switch for formatted output],, enable_full_vos_listvol_switch="yes")
+AC_ARG_ENABLE( icmp-pmtu-discovery,
+[  --enable-icmp-pmtu-discovery                enable path MTU discovery by decoding ICMP unreachable replies],, enable_icmp_pmtu_discovery="no")
 AC_ARG_WITH(dux-kernel-headers,
 [  --with-dux-kernel-headers=path      use the kernel headers found at path(optional, defaults to first match in /usr/sys)]
 )
@@ -618,6 +622,8 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
 
                  LINUX_KBUILD_USES_EXTRA_CFLAGS
                 LINUX_KERNEL_COMPILE_WORKS
+                LINUX_EXPORTS_FIND_TASK_BY_PID
+                LINUX_EXPORTS_PROC_ROOT_FS
                  LINUX_HAVE_CURRENT_KERNEL_TIME
                  LINUX_KMEM_CACHE_INIT
                 LINUX_HAVE_KMEM_CACHE_T
@@ -660,6 +666,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 LINUX_KERNEL_SELINUX
                 LINUX_KERNEL_SOCK_CREATE
                 LINUX_KERNEL_PAGE_FOLLOW_LINK
+                LINUX_KERNEL_HLIST_UNHASHED
                  LINUX_KEY_TYPE_H_EXISTS
                 LINUX_NEED_RHCONFIG
                 LINUX_RECALC_SIGPENDING_ARG_TYPE
@@ -697,6 +704,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                  LINUX_EXPORTS_SYS_CLOSE
                  LINUX_EXPORTS_SYS_OPEN
                  LINUX_EXPORTS_SYS_WAIT4
+                LINUX_EXPORTS_RCU_READ_LOCK
                 LINUX_WHICH_MODULES
                  if test "x$ac_cv_linux_config_modversions" = "xno" -o $AFS_SYSKVERS -ge 26; then
                    AC_MSG_WARN([Cannot determine sys_call_table status. assuming it isn't exported])
@@ -837,6 +845,9 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 if test "x$ac_cv_linux_kernel_page_follow_link" = "xyes" ; then
                  AC_DEFINE(HAVE_KERNEL_PAGE_FOLLOW_LINK, 1, [define if your linux kernel provides page_follow_link])
                 fi
+                if test "x$ac_cv_linux_kernel_hlist_unhashed" = "xyes" ; then
+                 AC_DEFINE(HAVE_KERNEL_HLIST_UNHASHED, 1, [define if your linux kernel provides hlist_unhashed])
+                fi
                 if test "x$ac_linux_syscall" = "xyes" ; then
                  AC_DEFINE(HAVE_KERNEL_LINUX_SYSCALL_H, 1, [define if your linux kernel has linux/syscall.h])
                 fi
@@ -1079,6 +1090,19 @@ else
   
 fi
 
+AC_CACHE_VAL(ac_cv_setsockopt_iprecverr,
+[
+AC_MSG_CHECKING([for setsockopt(, SOL_IP, IP_RECVERR)])
+AC_TRY_COMPILE( [#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>],
+[int on=1;
+setsockopt(0, SOL_IP, IP_RECVERR, &on, sizeof(on));], ac_cv_setsockopt_iprecverr=yes, ac_cv_setsockopt_iprecverr=no)
+AC_MSG_RESULT($ac_cv_setsockopt_iprecverr)])
+if test "$ac_cv_setsockopt_iprecverr" = "yes"; then
+   AC_DEFINE(ADAPT_PMTU_RECVERR, 1, [define if asynchronous socket errors can be received])
+fi
+
 PTHREAD_LIBS=error
 if test "x$MKAFS_OSTYPE" = OBSD; then
         PTHREAD_LIBS="-pthread"
@@ -1155,6 +1179,10 @@ else
 fi
 AC_SUBST(DEMAND_ATTACH)
 
+if test "$enable_disconnected" = "yes"; then
+       AC_DEFINE(AFS_DISCON_ENV, 1, [define if you want support for disconnected operation])
+fi
+
 if test "$enable_unix_sockets" = "yes"; then
        AC_DEFINE(USE_UNIX_SOCKETS, 1, [define if you want to use UNIX sockets for fssync.])
        USE_UNIX_SOCKETS="yes"
@@ -1173,6 +1201,12 @@ if test "$enable_full_vos_listvol_switch" = "yes"; then
        AC_DEFINE(FULL_LISTVOL_SWITCH, 1, [define if you want to want listvol switch])
 fi
 
+if test "$enable_icmp_pmtu_discovery" = "yes"; then
+   if test "$ac_cv_setsockopt_iprecverr" = "yes"; then
+       AC_DEFINE(ADAPT_PMTU, 1, [define if you want to decode icmp unreachable packets to discover path mtu])
+   fi
+fi
+
 if test "$enable_bos_restricted_mode" = "yes"; then
        AC_DEFINE(BOS_RESTRICTED_MODE, 1, [define if you want to want bos restricted mode])
 fi
@@ -1225,6 +1259,7 @@ AC_CHECK_HEADERS(mntent.h sys/vfs.h sys/param.h sys/fs_types.h sys/fstyp.h)
 AC_CHECK_HEADERS(sys/mount.h strings.h termios.h signal.h poll.h)
 AC_CHECK_HEADERS(windows.h malloc.h winsock2.h direct.h io.h sys/user.h)
 AC_CHECK_HEADERS(security/pam_modules.h siad.h usersec.h ucontext.h regex.h values.h)
+AC_CHECK_HEADERS(linux/errqueue.h,,,[#include <linux/types.h>])
 
 if test "$ac_cv_header_security_pam_modules_h" = yes -a "$enable_pam" = yes; then
        HAVE_PAM="yes"