git: add a mailmap file
[openafs.git] / acinclude.m4
index 3d7aaab..829050e 100644 (file)
@@ -76,9 +76,6 @@ AC_ARG_WITH([afs-sysname],
 ])
 
 dnl General feature options.
-AC_ARG_ENABLE([gtx],
-    [AS_HELP_STRING([--disable-gtx], [disable gtx curses-based terminal tools])])
-
 AC_ARG_ENABLE([namei-fileserver],
     [AS_HELP_STRING([--enable-namei-fileserver],
        [force compilation of namei fileserver in preference to inode
@@ -114,6 +111,11 @@ AC_ARG_ENABLE([pthreaded-ubik],
          enabled)])],
     [],
     [enable_pthreaded_ubik="yes"])
+AC_ARG_ENABLE([ubik-read-while-write],
+    [AS_HELP_STRING([--enable-ubik-read-while-write],
+       [enable vlserver read from db cache during write locks (EXPERIMENTAL)])],
+    [],
+    [enable_ubik_read_while_write="no"])
 
 dnl Kernel module build options.
 AC_ARG_WITH([linux-kernel-headers],
@@ -251,6 +253,23 @@ AC_ARG_ENABLE([linux-syscall-probing],
        [enable Linux syscall probing (defaults to autodetect)])],
     [],
     [enable_linux_syscall_probing="maybe"])
+AC_ARG_ENABLE([linux-d_splice_alias-extra-iput],
+    [AS_HELP_STRING([--enable-linux-d_splice_alias-extra-iput],
+       [Linux kernels in the 3.17 series prior to 3.17.3 had a bug
+        wherein error returns from the d_splice_alias() function were
+        leaking a reference on the inode.  The bug was fixed for the
+        3.17.3 kernel, and the possibility of an error return was only
+        introduced in kernel 3.17, so only the narrow range of kernels
+        is affected.  Enable this option for builds on systems with
+        kernels affected by this bug, to manually release the reference
+        on error returns and correct the reference counting.
+        Linux commit 51486b900ee92856b977eacfc5bfbe6565028070 (or
+        equivalent) is the fix for the upstream bug, so if such a commit
+        is present, leave this option disabled.  We apologize
+        that you are required to know this about your running kernel,
+        but luckily only a narrow range of versions is affected.])],
+    [],
+    [enable_linux_d_splice_alias_extra_iput="no"])
 AC_ARG_WITH([crosstools-dir],
     [AS_HELP_STRING([--with-crosstools-dir=path],
        [use path for native versions of rxgen, compile_et and config])
@@ -435,7 +454,7 @@ case $system in
                 case "$GUESS_LINUX_VERSION" in
                   2.2.*) AFS_SYSKVERS=22 ;;
                   2.4.*) AFS_SYSKVERS=24 ;;
-                  2.6.* | 3.*) AFS_SYSKVERS=26 ;;
+                  [2.6.* | [3-9]* | [1-2][0-9]*]) AFS_SYSKVERS=26 ;;
                   *) AC_MSG_ERROR(Couldn't guess your Linux version [2]) ;;
                 esac
                 ;;
@@ -671,6 +690,14 @@ else
                        AFS_SYSNAME="x86_darwin_140"
                        OSXSDK="macosx10.10"
                        ;;
+               x86_64-apple-darwin15.*)
+                       AFS_SYSNAME="x86_darwin_150"
+                       OSXSDK="macosx10.11"
+                       ;;
+               i?86-apple-darwin15.*)
+                       AFS_SYSNAME="x86_darwin_150"
+                       OSXSDK="macosx10.11"
+                       ;;
                sparc-sun-solaris2.8)
                        AFS_SYSNAME="sun4x_58"
                        ;;
@@ -780,6 +807,10 @@ else
                        if test "x${AFS_SYSKVERS}" = "x"; then
                         AC_MSG_ERROR(Couldn't guess your Linux version. Please use the --with-afs-sysname option to configure an AFS sysname.)
                        fi
+                       if test "x${AFS_SYSKVERS}" = "x24" ||
+                               test "x${AFS_SYSKVERS}" = "x22"; then
+                           AC_MSG_ERROR([Linux 2.4.x and older are no longer supported by OpenAFS.  Please use an OpenAFS 1.6.x release on those systems.])
+                       fi
                        _AFS_SYSNAME=`echo $AFS_SYSNAME|sed s/XX\$/$AFS_SYSKVERS/`
                        AFS_SYSNAME="$_AFS_SYSNAME"
                        AC_TRY_KBUILD(
@@ -842,12 +873,8 @@ case $AFS_SYSNAME in
     *_obsd52)   AFS_PARAM_COMMON=param.obsd52.h  ;;
     *_obsd53)   AFS_PARAM_COMMON=param.obsd53.h  ;;
     *_obsd54)   AFS_PARAM_COMMON=param.obsd54.h  ;;
-    *_linux22)  AFS_PARAM_COMMON=param.linux22.h ;;
-    *_linux24)  AFS_PARAM_COMMON=param.linux24.h ;;
     *_linux26)  AFS_PARAM_COMMON=param.linux26.h ;;
 # Linux alpha adds an extra underscore for no good reason.
-    *_linux_22) AFS_PARAM_COMMON=param.linux22.h ;;
-    *_linux_24) AFS_PARAM_COMMON=param.linux24.h ;;
     *_linux_26) AFS_PARAM_COMMON=param.linux26.h ;;
     *_fbsd_*)   AFS_PARAM_COMMON=param.generic_fbsd.h ;;
 esac
@@ -881,9 +908,18 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 LINUX_KBUILD_USES_EXTRA_CFLAGS
                 LINUX_KERNEL_COMPILE_WORKS
 
+                dnl Operation signature checks
+                AC_CHECK_LINUX_OPERATION([inode_operations], [follow_link], [no_nameidata],
+                                         [#include <linux/fs.h>],
+                                         [const char *],
+                                         [struct dentry *dentry, void **link_data])
+                AC_CHECK_LINUX_OPERATION([inode_operations], [put_link], [no_nameidata],
+                                         [#include <linux/fs.h>],
+                                         [void],
+                                         [struct inode *inode, void *link_data])
+
                 dnl Check for header files
                 AC_CHECK_LINUX_HEADER([config.h])
-                AC_CHECK_LINUX_HEADER([completion.h])
                 AC_CHECK_LINUX_HEADER([exportfs.h])
                 AC_CHECK_LINUX_HEADER([freezer.h])
                 AC_CHECK_LINUX_HEADER([key-type.h])
@@ -895,6 +931,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_TYPE([kuid_t], [uidgid.h])
 
                 dnl Check for structure elements
+                AC_CHECK_LINUX_STRUCT([address_space], [backing_dev_info], [fs.h])
                 AC_CHECK_LINUX_STRUCT([address_space_operations],
                                       [write_begin], [fs.h])
                 AC_CHECK_LINUX_STRUCT([backing_dev_info], [name],
@@ -915,6 +952,8 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_STRUCT([file_operations], [sendfile], [fs.h])
                 AC_CHECK_LINUX_STRUCT([file_system_type], [mount], [fs.h])
                 AC_CHECK_LINUX_STRUCT([inode_operations], [truncate], [fs.h])
+                AC_CHECK_LINUX_STRUCT([inode_operations], [get_link], [fs.h])
+                AC_CHECK_LINUX_STRUCT([key], [payload.value], [key.h])
                 AC_CHECK_LINUX_STRUCT([key_type], [instantiate_prep], [key-type.h])
                 AC_CHECK_LINUX_STRUCT([key_type], [match_preparse], [key-type.h])
                 AC_CHECK_LINUX_STRUCT([key_type], [preparse], [key-type.h])
@@ -937,6 +976,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_STRUCT([task_struct], [sigmask_lock], [sched.h])
                 AC_CHECK_LINUX_STRUCT([task_struct], [tgid], [sched.h])
                 AC_CHECK_LINUX_STRUCT([task_struct], [thread_info], [sched.h])
+                AC_CHECK_LINUX_STRUCT([task_struct], [total_link_count], [sched.h])
                 LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM
 
                 dnl Check for typed structure elements
@@ -945,6 +985,9 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
 
                 dnl Function existence checks
 
+                AC_CHECK_LINUX_FUNC([__vfs_read],
+                                    [#include <linux/fs.h>],
+                                    [__vfs_read(NULL, NULL, 0, NULL);])
                  AC_CHECK_LINUX_FUNC([bdi_init],
                                     [#include <linux/backing-dev.h>],
                                     [bdi_init(NULL);])
@@ -989,6 +1032,9 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_FUNC([hlist_unhashed],
                                     [#include <linux/list.h>],
                                     [hlist_unhashed(0);])
+                AC_CHECK_LINUX_FUNC([ihold],
+                                    [#include <linux/fs.h>],
+                                    [ihold(NULL);])
                 AC_CHECK_LINUX_FUNC([i_size_read],
                                     [#include <linux/fs.h>],
                                     [i_size_read(NULL);])
@@ -1001,9 +1047,15 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_FUNC([kernel_setsockopt],
                                     [#include <linux/net.h>],
                                     [kernel_setsockopt(NULL, 0, 0, NULL, 0);])
+                AC_CHECK_LINUX_FUNC([locks_lock_file_wait],
+                                    [#include <linux/fs.h>],
+                                    [locks_lock_file_wait(NULL, NULL);])
                 AC_CHECK_LINUX_FUNC([page_follow_link],
                                     [#include <linux/fs.h>],
                                     [page_follow_link(0,0);])
+                AC_CHECK_LINUX_FUNC([page_get_link],
+                                    [#include <linux/fs.h>],
+                                    [page_get_link(0,0,0);])
                 AC_CHECK_LINUX_FUNC([page_offset],
                                     [#include <linux/pagemap.h>],
                                     [page_offset(NULL);])
@@ -1026,9 +1078,15 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_FUNC([sock_create_kern],
                                     [#include <linux/net.h>],
                                     [sock_create_kern(0, 0, 0, NULL);])
+                AC_CHECK_LINUX_FUNC([sock_create_kern_ns],
+                                    [#include <linux/net.h>],
+                                    [sock_create_kern(NULL, 0, 0, 0, NULL);])
                 AC_CHECK_LINUX_FUNC([splice_direct_to_actor],
                                     [#include <linux/splice.h>],
                                     [splice_direct_to_actor(NULL,NULL,NULL);])
+                AC_CHECK_LINUX_FUNC([default_file_splice_read],
+                                    [#include <linux/fs.h>],
+                                    [default_file_splice_read(NULL,NULL,NULL, 0, 0);])
                 AC_CHECK_LINUX_FUNC([svc_addr_in],
                                     [#include <linux/sunrpc/svc.h>],
                                     [svc_addr_in(NULL);])
@@ -1042,6 +1100,12 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                                     [#include <linux/kernel.h>
                                      #include <linux/kthread.h>],
                                     [kthread_run(NULL, NULL, "test");])
+                AC_CHECK_LINUX_FUNC([inode_nohighmem],
+                                    [#include <linux/fs.h>],
+                                    [inode_nohighmem(NULL);])
+                AC_CHECK_LINUX_FUNC([inode_lock],
+                                    [#include <linux/fs.h>],
+                                    [inode_lock(NULL);])
 
                 dnl Consequences - things which get set as a result of the
                 dnl                above tests
@@ -1172,13 +1236,20 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 if test -f "$LINUX_KERNEL_PATH/include/linux/mm_inline.h"; then
                  AC_DEFINE(HAVE_MM_INLINE_H, 1, [define if you have mm_inline.h header file])
                 fi
-                if test "x$ac_cv_linux_kernel_page_follow_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
+                if test "x$ac_cv_linux_func_page_get_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
                  AC_DEFINE(USABLE_KERNEL_PAGE_SYMLINK_CACHE, 1, [define if your kernel has a usable symlink cache API])
                 else
                  AC_MSG_WARN([your kernel does not have a usable symlink cache API])
                 fi
+                if test "x$ac_cv_linux_func_page_get_link" != "xyes" -a "x$ac_cv_linux_struct_inode_operations_has_get_link" = "xyes"; then
+                       AC_MSG_ERROR([Your kernel does not use follow_link - not supported without symlink cache API])
+                       exit 1
+                fi
                 :
                fi
+               if test "x$enable_linux_d_splice_alias_extra_iput" = xyes; then
+                   AC_DEFINE(D_SPLICE_ALIAS_LEAK_ON_ERROR, 1, [for internal use])
+               fi
 dnl Linux-only, but just enable always.
                AC_DEFINE(AFS_CACHE_BYPASS, 1, [define to activate cache bypassing Unix client])
 esac
@@ -1343,6 +1414,10 @@ else
 fi
 AC_SUBST(USE_UNIX_SOCKETS)
 
+if test "$enable_ubik_read_while_write" = "yes"; then
+       AC_DEFINE(UBIK_READ_WHILE_WRITE, 1, [define if you want to enable ubik read while write])
+fi
+
 if test "$enable_namei_fileserver" = "yes"; then
        AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
        VFSCK=""
@@ -1376,6 +1451,8 @@ if test "$enable_tivoli_tsm" = "yes"; then
        XBSADIR2=/opt/tivoli/tsm/client/api/bin/xopen
        XBSADIR3=/usr/tivoli/tsm/client/api/bin/sample
        XBSADIR4=/opt/tivoli/tsm/client/api/bin/sample
+       XBSADIR5=/usr/tivoli/tsm/client/api/bin64/sample
+       XBSADIR6=/opt/tivoli/tsm/client/api/bin64/sample
 
        if test -r "$XBSADIR3/dsmapifp.h"; then
                XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR3"
@@ -1385,6 +1462,14 @@ if test "$enable_tivoli_tsm" = "yes"; then
                XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR4"
                XBSA_XLIBS="-ldl"
                AC_MSG_RESULT([yes, $XBSA_CFLAGS])
+       elif test -r "$XBSADIR5/dsmapifp.h"; then
+               XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR5"
+               XBSA_XLIBS="-ldl"
+               AC_MSG_RESULT([yes, $XBSA_CFLAGS])
+       elif test -r "$XBSADIR6/dsmapifp.h"; then
+               XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR6"
+               XBSA_XLIBS="-ldl"
+               AC_MSG_RESULT([yes, $XBSA_CFLAGS])
        elif test -r "$XBSADIR1/xbsa.h"; then
                XBSA_CFLAGS="-Dxbsa -I$XBSADIR1"
                XBSA_XLIBS=""
@@ -1401,6 +1486,7 @@ else
 fi
 AC_SUBST(XBSA_CFLAGS)
 AC_SUBST(XBSA_XLIBS) 
+XLIBS="$XBSA_XLIBS $XLIBS"
 
 dnl checks for header files.
 AC_HEADER_STDC
@@ -1509,17 +1595,6 @@ AC_CHECK_TYPES([fsblkcnt_t],,,[
 dnl see what struct stat has for timestamps
 AC_CHECK_MEMBERS([struct stat.st_ctimespec, struct stat.st_ctimensec])
 
-dnl check for curses-lib
-AS_IF([test "x$enable_gtx" != "xno"],
-      [save_LIBS=$LIBS
-      AC_CHECK_LIB( [ncurses], [setupterm],
-      [LIB_curses=-lncurses],
-        [AC_CHECK_LIB([Hcurses], [setupterm], [LIB_curses=-lHcurses],
-          [AC_CHECK_LIB([curses], [setupterm], [LIB_curses=-lcurses])])
-      ])
-      LIBS=$save_LIBS
-      AC_SUBST(LIB_curses)])
-       
 OPENAFS_TEST_PACKAGE(libintl,[#include <libintl.h>],[-lintl],,,INTL)
 
 if test "$enable_debug_locks" = yes; then
@@ -1527,7 +1602,7 @@ if test "$enable_debug_locks" = yes; then
 fi
 
 if test "$ac_cv_header_security_pam_modules_h" = yes -a "$enable_pam" = yes; then
-       HAVE_PAM="YES"
+       HAVE_PAM="yes"
 else
        HAVE_PAM="no"
 fi
@@ -1549,6 +1624,7 @@ AC_SUBST(INSTALL_KAUTH)
 
 AC_CHECK_FUNCS([ \
        arc4random \
+       closelog \
        fcntl \
        fseeko64 \
        ftello64 \
@@ -1560,6 +1636,7 @@ AC_CHECK_FUNCS([ \
        getrlimit \
        issetugid \
        mkstemp \
+       openlog \
        poll \
        pread \
        preadv \
@@ -1577,13 +1654,16 @@ AC_CHECK_FUNCS([ \
        strerror \
        sysconf \
        sysctl \
+       syslog \
        tdestroy \
        timegm \
 ])
 
 OPENAFS_ROKEN()
 OPENAFS_HCRYPTO()
+OPENAFS_CURSES()
 OPENAFS_C_ATTRIBUTE()
+OPENAFS_C_PRAGMA()
 
 dnl Functions that Heimdal's libroken provides, but that we
 dnl haven't found a need for yet, and so haven't imported