btrfs-progs: build: only install udev rules for udev >= 190
[btrfs-progs-unstable/devel.git] / configure.ac
blob8fd8f425a076637da2146dfbab61bee00d78c432
1 AC_INIT([btrfs-progs],
2         m4_esyscmd([./version.sh --configure]),
3         [linux-btrfs@vger.kernel.org],,
4         [http://btrfs.wiki.kernel.org])
6 if test "x$PACKAGE_URL" = "x"; then
7         AC_DEFINE([PACKAGE_URL], ["http://btrfs.wiki.kernel.org"], [URL])
8 fi
10 dnl library version
11 LIBBTRFS_MAJOR=0
12 LIBBTRFS_MINOR=1
13 LIBBTRFS_PATCHLEVEL=1
15 CFLAGS=${CFLAGS:-"-g -O1 -Wall -D_FORTIFY_SOURCE=2"}
16 AC_SUBST([CFLAGS])
18 AC_PREREQ([2.60])
20 AC_CONFIG_AUX_DIR([config])
21 dnl AC_USE_SYSTEM_EXTENSIONS must be called before any macros that run
22 dnl the compiler (like AC_PROG_LIBTOOL) to avoid autoconf errors.
23 AC_USE_SYSTEM_EXTENSIONS
25 AC_CONFIG_SRCDIR([btrfs.c])
26 AC_PREFIX_DEFAULT([/usr/local])
28 AC_PROG_CC
29 AC_CANONICAL_HOST
30 AC_C_CONST
31 AC_C_VOLATILE
32 AC_C_BIGENDIAN
34 AC_SYS_LARGEFILE
36 AC_PROG_INSTALL
37 AC_PROG_LN_S
38 AC_CHECK_TOOL([AR], [ar])
39 AC_PATH_PROG([RM], [rm], [rm])
40 AC_PATH_PROG([RMDIR], [rmdir], [rmdir])
42 AC_CHECK_FUNCS([openat], [],
43         [AC_MSG_ERROR([cannot find openat() function])])
45 m4_ifndef([PKG_PROG_PKG_CONFIG],
46   [m4_fatal([Could not locate the pkg-config autoconf
47     macros. These are usually located in /usr/share/aclocal/pkg.m4.
48     If your macros are in a different location, try setting the
49     environment variable AL_OPTS="-I/other/macro/dir" before running
50     ./autogen.sh or autoreconf again.])])
51 PKG_PROG_PKG_CONFIG
54 dnl
55 dnl Calls pkg-config --static
56 dnl
57 AC_DEFUN([PKG_STATIC], [
58   if AC_RUN_LOG([pkg-config --exists --print-errors "$2"]); then
59     $1=`pkg-config --libs --static "$2"`
60     AC_SUBST([$1])
61   else
62     AC_MSG_ERROR([pkg-config description of $2, needed for static build, is not available])
63   fi
67 AC_ARG_ENABLE([backtrace],
68   AS_HELP_STRING([--disable-backtrace], [disable btrfs backtrace]),
69   [], [enable_backtrace=yes]
72 AS_IF([test "x$enable_backtrace" = xno], [
73   AC_DEFINE([BTRFS_DISABLE_BACKTRACE], [1], [disable backtrace stuff in kerncompat.h ])
76 if test "x$enable_backtrace" = xyes; then
77         AC_CHECK_HEADERS([execinfo.h])
78         AC_CHECK_FUNCS([backtrace backtrace_symbols_fd], [],
79               AC_MSG_ERROR([standard library does not have backtrace support]))
83 AC_ARG_ENABLE([documentation],
84               AS_HELP_STRING([--disable-documentation], [do not build domumentation]),
85   [], [enable_documentation=yes]
87 AS_IF([test "x$enable_documentation" = xyes], [DISABLE_DOCUMENTATION=0], [DISABLE_DOCUMENTATION=1])
88 AC_SUBST([DISABLE_DOCUMENTATION])
90 dnl detect tools to build documentation
91 if test "x$enable_documentation" = xyes; then
92         AC_PATH_PROG([ASCIIDOC], [asciidoc], [asciidoc])
93         AC_PATH_PROG([XMLTO], [xmlto], [xmlto])
94         AC_PATH_PROG([GZIP], [gzip], [gzip])
95         AC_PATH_PROG([MV], [mv], [mv])
96         AC_PROG_SED
99 AC_ARG_ENABLE([convert],
100               AS_HELP_STRING([--disable-convert], [do not build btrfs-convert]),
101   [], [enable_convert=yes]
104 AS_IF([test "x$enable_convert" = xyes], [DISABLE_BTRFSCONVERT=0], [DISABLE_BTRFSCONVERT=1])
105 AC_SUBST([DISABLE_BTRFSCONVERT])
107 AC_ARG_WITH([convert],
108             AS_HELP_STRING([[[]--with-convert[[=auto]]]], [built-in filesystems for convert (default: auto)
109 supported (comma separated list): ext2]),
110   [], [with_convert=auto]
113 if test "$with_convert" = "yes"; then
114         with_convert=auto
117 if test "$with_convert" = "no"; then
118         with_convert=
121 convertfs=
122 BTRFSCONVERT_EXT2=0
123 if test "x$enable_convert" = xyes; then
124         if test "x$with_convert" = "xauto" || echo "$with_convert" | grep -q "ext2"; then
125                 PKG_CHECK_MODULES(EXT2FS, [ext2fs >= 1.42],,
126                         [PKG_CHECK_MODULES(EXT2FS, [ext2fs],
127                                 [AC_DEFINE([HAVE_OLD_E2FSPROGS], [1],
128                                           [E2fsprogs does not support BIGALLOC])]
129                                 )])
130                 PKG_CHECK_MODULES(COM_ERR, [com_err])
131                 convertfs="${convertfs:+$convertfs,}ext2"
132                 BTRFSCONVERT_EXT2=1
133         fi
135 AC_SUBST([BTRFSCONVERT_EXT2])
137 # catch typos
138 tmp=$(echo "$with_convert" | sed -e 's/auto//' | sed -e 's/ext2//' | sed -e 's/,\+/,/')
139 if ! test "x$tmp" = "x"; then
140         AC_MSG_ERROR([unknown tokens for --with-convert: $tmp])
143 if test "$DISABLE_BTRFSCONVERT" = 0 && test "x$convertfs" = "x"; then
144         AC_MSG_ERROR([no filesystems for convert, use --disable-convert instead])
147 AX_CHECK_DEFINE([linux/fiemap.h], [FIEMAP_EXTENT_SHARED], [],
148                 [AC_MSG_ERROR([no definition of FIEMAP_EXTENT_SHARED found])])
150 dnl Define <NAME>_LIBS= and <NAME>_CFLAGS= by pkg-config
152 dnl The default PKG_CHECK_MODULES() action-if-not-found is end the
153 dnl execution with error. The static libs are optional.
155 PKG_CHECK_MODULES(BLKID, [blkid])
156 PKG_STATIC(BLKID_LIBS_STATIC, [blkid])
158 PKG_CHECK_MODULES(UUID, [uuid])
159 PKG_STATIC(UUID_LIBS_STATIC, [uuid])
161 PKG_CHECK_MODULES(ZLIB, [zlib])
162 PKG_STATIC(ZLIB_LIBS_STATIC, [zlib])
164 # udev v190 introduced the btrfs builtin and a udev rule to use it.
165 # Our udev rule gives us the friendly dm names but isn't required (or valid)
166 # on earlier releases.
167 UDEVDIR=
168 if pkg-config udev --atleast-version 190; then
169         UDEVDIR="$(pkg-config udev --variable=udevdir)"
171 AC_SUBST(UDEVDIR)
173 dnl lzo library does not provide pkg-config, let use classic way
174 AC_CHECK_LIB([lzo2], [lzo_version], [
175         LZO2_LIBS="-llzo2"
176         LZO2_CFLAGS=""
177         LZO2_LIBS_STATIC="-llzo2"],[
178         AC_MSG_ERROR([cannot find lzo2 library])
180 AC_SUBST([LZO2_LIBS])
181 AC_SUBST([LZO2_LIBS_STATIC])
182 AC_SUBST([LZO2_CFLAGS])
185 dnl library stuff
186 AC_SUBST([LIBBTRFS_MAJOR])
187 AC_SUBST([LIBBTRFS_MINOR])
188 AC_SUBST([LIBBTRFS_PATCHLEVEL])
190 AC_CONFIG_HEADERS([config.h])
192 AC_CONFIG_FILES([
193 Makefile
194 Documentation/Makefile
195 version.h
198 AC_OUTPUT
200 AC_MSG_RESULT([
201         ${PACKAGE_NAME} ${PACKAGE_VERSION}
203         prefix:            ${prefix}
204         exec prefix:       ${exec_prefix}
206         bindir:            ${bindir}
207         libdir:            ${libdir}
208         includedir:        ${includedir}
210         compiler:          ${CC}
211         cflags:            ${CFLAGS}
212         ldflags:           ${LDFLAGS}
214         documentation:     ${enable_documentation}
215         backtrace support: ${enable_backtrace}
216         btrfs-convert:     ${enable_convert} ${convertfs:+($convertfs)}
218         Type 'make' to compile.