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Date: Wed, 20 Mar 2013 10:09:54 +0100
From: Adam Ryczkowski <adam.ryczkowski@statystyka.net>
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To: linux-btrfs@vger.kernel.org
Subject: Problem with building instructions for btrfs-tools in https://btrfs.wiki.kernel.org/index.php/Btrfs_source_repositories
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There is a missing dependency: liblzo2-dev

Without it, the make fails with:

~/tmp$ git clone 
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git

~/tmp$ cd btrfs-progs

~/tmp/btrfs-progs$ sudo apt-get install uuid-dev libattr1-dev zlib 
1g-dev libacl1-dev e2fslibs-dev libblkid-dev

~/tmp/btrfs-progs$ make
     [CC]     ctree.o
     [CC]     disk-io.o
     [CC]     radix-tree.o
     [CC]     extent-tree.o
     [CC]     print-tree.o
     [CC]     root-tree.o
     [CC]     dir-item.o
     [CC]     file-item.o
     [CC]     inode-item.o
     [CC]     inode-map.o
     [CC]     extent-cache.o
     [CC]     extent_io.o
     [CC]     volumes.o
     [CC]     utils.o
     [CC]     btrfs-list.o
     [CC]     repair.o
     [CC]     send-stream.o
     [CC]     send-utils.o
     [CC]     qgroup.o
     [CC]     raid6.o
     [CC]     rbtree.o
     [CC]     crc32c.o
     [LN]     libbtrfs.so.0
     [LN]     libbtrfs.so
     [LD]     libbtrfs.so.0.1
/usr/bin/ld: cannot find -llzo2
collect2: error: ld returned 1 exit status
make: *** [libbtrfs.so.0.1] Error 1

I suggest to make amendment to the wiki and add a "liblzo2-dev" to the 
apt-get line for Ubuntu/Debian.

-- 

Adam Ryczkowski
+48505919892 <callto:+48505919892>
Skype:sisteczko <skype:sisteczko>