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Installation instructions
=========================
The Btrfs utility programs require the following libraries/tools to build:
- libuuid - provided by util-linux, e2fsprogs/e2fslibs or libuuid
- libblkid - block device id library
- liblzo2 - LZO data compression library
- zlib - ZLIB data compression library
- libzstd - ZSTD data compression library version >= 1.0.0
For the btrfs-convert utility:
- e2fsprogs - ext2/ext3/ext4 file system libraries, or called e2fslibs
- libreiserfscore - reiserfs file system library version >= 3.6.27
Generating documentation:
- asciidoc - text document format tool
- xmlto - text document format tool
XATTR library should be provided by the standard C library or by
- libattr - extended attribute library
Please note that the package names may differ according to the distribution.
See https://btrfs.wiki.kernel.org/index.php/Btrfs_source_repositories#Dependencies .
Building from sources
---------------------
To build from git sources you need to generate the configure script using the
autotools:
$ ./autogen.sh
To build from the released tarballs:
$ ./configure
$ make
$ make install
To install the libbtrfsutil Python bindings:
$ make install_python
You may disable building some parts like documentation, btrfs-convert or
backtrace support. See ./configure --help for more.
Specific CFLAGS or LDFLAGS should be set like
$ CFLAGS=... LDFLAGS=... ./configure --prefix=/usr
and not as arguments to make. You can specify additional flags to build via
variables EXTRA_CFLAGS and EXTRA_LDFLAGS that get appended to the predefined
values of the respective variables. There are further build tuning options
documented in the Makefile.
$ make EXTRA_CFLAGS=-ggdb3
The build utilizes autotools, dependencies for generating the configure
scripts are:
* autconf, autoheader
* automake, aclocal
* pkg-config
Statically built binaries
-------------------------
The makefiles are ready to let you build static binaries of the utilities. This
may be handy in rescue environments. Your system has to provide static version
of the libraries.
$ make static
$ make btrfs.static
$ make btrfs-convert.static
The resulting binaries have the '.static' suffix, the intermediate object
files do not conflict with the normal (dynamic) build.
References:
* https://btrfs.wiki.kernel.org
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