4 # --without-ldiskfs - Disable ldiskfs support.
7 # --with-ldiskfs - Enable ldiskfs support and attempt to autodetect the
8 # --with-ldiskfs=yes headers in one of the following places in this order:
10 # * /usr/src/ldiskfs-*/$LINUXRELEASE
13 # --with-ldiskfs=path - Enable ldiskfs support and use the headers in the
14 # provided path. No autodetection is performed.
16 # --with-ldiskfs-obj - When ldiskfs support is enabled the object directory
17 # will be based on the --with-ldiskfs directory. If
18 # this is detected incorrectly it can be explicitly
19 # specified using this option.
21 # NOTE: As with all external packages ldiskfs is expected to already be
22 # configured and built. However, if the ldiskfs tree is located in-tree
23 # (./ldiskfs) then it will be configured and built recursively as part of
24 # the lustre build system.
26 # NOTE: The lustre and in-tree ldiskfs build systems both make use these
27 # macros. This is undesirable and confusing at best, it is potentially
28 # danagerous at worst. The ldiskfs build system should be entirely stand
29 # alone without dependency on the lustre build system.
31 AC_DEFUN([LB_PATH_LDISKFS],
33 AC_ARG_WITH([ldiskfs],
34 AC_HELP_STRING([--with-ldiskfs=path], [set path to ldiskfs source]),
36 if test x$enable_server = xyes && test x$enable_dist = xno; then
43 case x$with_ldiskfs in
51 ldiskfs_src=$PWD/ldiskfs
52 if test -e "$ldiskfs_src"; then
53 LDISKFS_DIR=$(readlink -f $ldiskfs_src)
55 # Check /usr/src/ldiskfs-*/$LINUXRELEASE
56 ldiskfs_src=$(ls -1d \
57 /usr/src/ldiskfs-*/$LINUXRELEASE \
58 2>/dev/null | tail -1)
59 if test -e "$ldiskfs_src"; then
60 LDISKFS_DIR=$(readlink -f $ldiskfs_src)
63 ldiskfs_src=$PWD/../ldiskfs
64 if test -e "$ldiskfs_src"; then
65 LDISKFS_DIR=$(readlink -f $ldiskfs_src)
67 # Disable ldiskfs failed to detect
75 LDISKFS_DIR=$(readlink -f $with_ldiskfs)
80 AC_MSG_CHECKING([whether to enable ldiskfs])
81 AC_MSG_RESULT([$with_ldiskfs])
83 AC_ARG_WITH([ldiskfs-obj],
84 AC_HELP_STRING([--with-ldiskfs-obj=path],[set path to ldiskfs objects]),
86 if test x$with_ldiskfs = xyes; then
87 LDISKFS_OBJ="$withval"
90 if test x$with_ldiskfs = xyes; then
91 LDISKFS_OBJ=$LDISKFS_DIR
95 if test x$with_ldiskfs = xyes; then
96 AC_MSG_CHECKING([ldiskfs source directory])
97 AC_MSG_RESULT([$LDISKFS_DIR])
100 AC_MSG_CHECKING([ldiskfs object directory])
101 AC_MSG_RESULT([$LDISKFS_OBJ])
102 AC_SUBST(LDISKFS_OBJ)
107 AC_DEFINE(HAVE_LDISKFS_OSD, 1, Enable ldiskfs osd)
111 # LDISKFS_DEVEL is required because when using the ldiskfs-devel package the
112 # ext4 source will be fully patched to ldiskfs. When building with the
113 # in-tree ldiskfs this patching this will occur after the configure step.
114 # We needed a way to determine if we should check the patched or unpatched
117 # Longer term this could be removed by moving the ldiskfs patching in to
118 # the configure phase. Or better yet ldiskfs could be updated to generate
119 # a ldiskfs_config.h which clearly defines how it was built. This can
120 # then be directly included by Lustre to avoid all the autoconf guess work.
121 # For an example of this behavior consult the lustre/zfs build integration.
123 AM_CONDITIONAL(LDISKFS_DEVEL, \
124 test x$LDISKFS_DIR = x$(readlink -f $PWD/ldiskfs) || \
125 test x$LDISKFS_DIR = x$(readlink -f $PWD/../ldiskfs))
127 AM_CONDITIONAL(LDISKFS_BUILD, test x$enable_ldiskfs_build = xyes)
128 AM_CONDITIONAL(LDISKFS_ENABLED, test x$with_ldiskfs = xyes)
130 if test -e "$PWD/ldiskfs"; then
131 LDISKFS_DIST_SUBDIR="ldiskfs"
132 AC_SUBST(LDISKFS_DIST_SUBDIR)
133 AC_CONFIG_SUBDIRS("ldiskfs")
140 # Determine the location of the ext4 source code. It it required
141 # for several configure tests and to build ldiskfs.
143 AC_DEFUN([LB_LDISKFS_EXT_DIR],
145 # Kernel ext source located with devel headers
147 if test -e "$linux_src/fs/ext4/super.c"; then
148 EXT_DIR=$linux_src/fs/ext4
150 # Kernel ext source provided by kernel-debuginfo-common package
151 linux_src=$(ls -1d /usr/src/debug/*/linux-$LINUXRELEASE \
152 2>/dev/null | tail -1)
153 if test -e "$linux_src/fs/ext4/super.c"; then
154 EXT_DIR=$linux_src/fs/ext4
160 AC_MSG_CHECKING([ext4 source directory])
161 AC_MSG_RESULT([$EXT_DIR])
166 # LB_LDISKFS_EXT_SOURCE
168 # Spot check the existance of several source files common to ext4.
169 # Detecting this at configure time allows us to avoid a potential build
170 # failure and provide a useful error message to explain what is wrong.
172 AC_DEFUN([LB_LDISKFS_EXT_SOURCE],
174 if test x$EXT_DIR = x; then
175 enable_ldiskfs_build='no'
177 LB_CHECK_FILE([$EXT_DIR/dir.c], [], [
178 enable_ldiskfs_build='no'
179 AC_MSG_WARN([ext4 must exist for ldiskfs build])])
180 LB_CHECK_FILE([$EXT_DIR/file.c], [], [
181 enable_ldiskfs_build='no'
182 AC_MSG_WARN([ext4 must exist for ldiskfs build])])
183 LB_CHECK_FILE([$EXT_DIR/inode.c], [], [
184 enable_ldiskfs_build='no'
185 AC_MSG_WARN([ext4 must exist for ldiskfs build])])
186 LB_CHECK_FILE([$EXT_DIR/super.c], [], [
187 enable_ldiskfs_build='no'
188 AC_MSG_WARN([ext4 must exist for ldiskfs build])])
191 if test x$enable_ldiskfs_build = xno; then
192 enable_ldiskfs_build='no'
198 Disabling server because complete ext4 source does not exist.
200 If you are building using kernel-devel packages and require ldiskfs
201 server support then ensure that the matching kernel-debuginfo-common
202 and kernel-debuginfo-common-<arch> packages are installed.
210 # Optionally configure/make the ldiskfs sources. If the sources are
211 # determined to reside in-tree this feature will automatically be
212 # enabled. If the sources are not in-tree it will be disabled.
213 # Use --enable-ldiskfs-build or --disable-ldiskfs-build if you need
214 # to override this behavior.
216 AC_DEFUN([LB_LDISKFS_BUILD],
218 AC_ARG_ENABLE([ldiskfs-build],
219 AC_HELP_STRING([--enable-ldiskfs-build],
220 [enable ldiskfs configure/make]),
222 LDISKFS_DIR_INTREE=$(readlink -f $PWD/ldiskfs)
223 if test x$LDISKFS_DIR = x$LDISKFS_DIR_INTREE; then
224 enable_ldiskfs_build='yes'
226 enable_ldiskfs_build='no'
230 AC_MSG_CHECKING([whether to build ldiskfs])
231 if test x$enable_ldiskfs_build = xyes; then
232 AC_MSG_RESULT([$enable_ldiskfs_build])
233 LDISKFS_SUBDIR="ldiskfs"
235 LB_CHECK_FILE([$LDISKFS_DIR/configure], [], [
236 AC_MSG_ERROR([Complete ldiskfs build system must exist])])
237 LB_LDISKFS_EXT_SOURCE
239 AC_SUBST(LDISKFS_SUBDIR)
241 enable_ldiskfs_build='no'
242 AC_MSG_RESULT([$enable_ldiskfs_build])
246 AC_DEFUN([LB_LDISKFS_SYMVERS],
248 AC_MSG_CHECKING([ldiskfs module symbols])
249 if test -r $LDISKFS_OBJ/Module.symvers; then
250 LDISKFS_SYMBOLS=Module.symvers
251 elif test -r $LDISKFS_OBJ/Modules.symvers; then
252 LDISKFS_SYMBOLS=Modules.symvers
253 elif test -r $LDISKFS_OBJ/ldiskfs/Module.symvers; then
254 LDISKFS_SYMBOLS=Module.symvers
255 elif test -r $LDISKFS_OBJ/ldiskfs/Modules.symvers; then
256 LDISKFS_SYMBOLS=Modules.symvers
258 LDISKFS_SYMBOLS=$SYMVERFILE
261 AC_MSG_RESULT([$LDISKFS_SYMBOLS])
262 AC_SUBST(LDISKFS_SYMBOLS)
266 # LB_DEFINE_E2FSPROGS_NAMES
268 # Enable the use of alternate naming of ldiskfs-enabled e2fsprogs package.
270 AC_DEFUN([LB_DEFINE_E2FSPROGS_NAMES],
272 AC_ARG_WITH([ldiskfsprogs],
273 AC_HELP_STRING([--with-ldiskfsprogs],
274 [use alternate names for ldiskfs-enabled e2fsprogs]),
277 AC_MSG_CHECKING([whether to use alternate names for e2fsprogs])
278 if test x$withval = xyes ; then
279 AC_DEFINE(HAVE_LDISKFSPROGS, 1, [enable use of ldiskfsprogs package])
280 E2FSPROGS="ldiskfsprogs"
281 MKE2FS="mkfs.ldiskfs"
282 DEBUGFS="debugfs.ldiskfs"
283 TUNE2FS="tunefs.ldiskfs"
284 E2LABEL="label.ldiskfs"
285 DUMPE2FS="dumpfs.ldiskfs"
286 E2FSCK="fsck.ldiskfs"
287 PFSCK="pfsck.ldiskfs"
288 AC_MSG_RESULT([enabled])
290 E2FSPROGS="e2fsprogs"
298 AC_MSG_RESULT([disabled])
301 AC_DEFINE_UNQUOTED(E2FSPROGS, "$E2FSPROGS", [name of ldiskfs e2fsprogs package])
302 AC_DEFINE_UNQUOTED(MKE2FS, "$MKE2FS", [name of ldiskfs mkfs program])
303 AC_DEFINE_UNQUOTED(DEBUGFS, "$DEBUGFS", [name of ldiskfs debug program])
304 AC_DEFINE_UNQUOTED(TUNE2FS, "$TUNE2FS", [name of ldiskfs tune program])
305 AC_DEFINE_UNQUOTED(E2LABEL, "$E2LABEL", [name of ldiskfs label program])
306 AC_DEFINE_UNQUOTED(DUMPE2FS,"$DUMPE2FS", [name of ldiskfs dump program])
307 AC_DEFINE_UNQUOTED(E2FSCK, "$E2FSCK", [name of ldiskfs fsck program])
308 AC_DEFINE_UNQUOTED(PFSCK, "$PFSCK", [name of parallel fsck program])
310 AC_SUBST([E2FSPROGS], [$E2FSPROGS])
311 AC_SUBST([MKE2FS], [$MKE2FS])
312 AC_SUBST([DEBUGFS], [$DEBUGFS])
313 AC_SUBST([TUNE2FS], [$TUNE2FS])
314 AC_SUBST([E2LABEL], [$E2LABEL])
315 AC_SUBST([DUMPE2FS], [$DUMPE2FS])
316 AC_SUBST([E2FSCK], [$E2FSCK])
317 AC_SUBST([PFSCK], [$PFSCK])