iv build failed

[t-ashula]

i'm trying to build lv5 on my laptop which runs fedora 20.
but build instaraction failed.

here is what i get

$ git clone https://github.com/Constellation/iv iv2
$ cd iv2
$ cmake -H. -Brelease -DCMAKE_BUILD_TYPE=Release
$ make -C release VERBOSE=1
...
Linking CXX executable lv5
cd /home/office/src/iv2/release/iv/lv5 && /usr/bin/cmake -E cmake_link_script CMakeFiles/lv5.dir/link.txt --verbose=1
/usr/bin/c++    -std=c++11 -fno-operator-names  -O3    CMakeFiles/lv5.dir/main.cc.o  -o lv5  -L/home/office/src/iv2/iv/lv5/third_party/netlib_dtoa  -L/home/office/src/iv2/iv/lv5/third_party/v8_dtoa  -L/home/office/src/iv2/iv/lv5/third_party/gc  -L/usr/local/lib -rdynamic liblv5.a -lm -lpthread libbackward.a -ldw -lbfd -Wl,-rpath,/home/office/src/iv2/iv/lv5/third_party/netlib_dtoa:/home/office/src/iv2/iv/lv5/third_party/v8_dtoa:/home/office/src/iv2/iv/lv5/third_party/gc:/usr/local/lib
/usr/bin/ld: liblv5.a(os_dep.c.o): undefined reference to symbol '_end'
/usr/bin/ld: note: '_end' is defined in DSO /lib64/libbz2.so.1 so try adding it to the linker command line
/lib64/libbz2.so.1: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
make[3]: *** [iv/lv5/lv5] Error 1
make[3]: Leaving directory `/home/office/src/iv2/release'
make[2]: *** [iv/lv5/CMakeFiles/lv5.dir/all] Error 2
make[2]: Leaving directory `/home/office/src/iv2/release'
make[1]: *** [iv/lv5/CMakeFiles/lv5.dir/rule] Error 2
make[1]: Leaving directory `/home/office/src/iv2/release'
make: *** [lv5] Error 2
make: Leaving directory `/home/office/src/iv2/release'

[Constellation]

Thank you for your report.
iv is tested on Ubuntu 12.04, 14.04 and OSX. We can see it on Travis-CI.
So, I've now set up Fedora20 VM, so I'll fix this :)

[Constellation]

I've committed one commit and in my environment, now lv5 can be built! Yay.
So please try it. If you still fail, let me know!
Here's my environment. I set up Fedora 20 to VM, installed cmake, git, gcc, gcc-c++, subversion, and built lv5.

[X / _ / X]$ uname -a                                                                                                  master ~/dev/iv
Linux localhost.localdomain 3.14.8-200.fc20.x86_64 #1 SMP Mon Jun 16 21:57:53 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
[X / _ / X]$ cat /etc/issue                                                                                            master ~/dev/iv
Fedora release 20 (Heisenbug)
Kernel \r on an \m (\l)

[X / _ / X]$ gcc --version                                                                                             master ~/dev/iv
gcc (GCC) 4.8.2 20131212 (Red Hat 4.8.2-7)
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[t-ashula]

hi, thanks for work.
i've updated to 42fe802.
but same error occurred.

however, i also confirmed no error on clean environment like you've made.
so i will try find out which rpm package affect this issue.

[t-ashula]

after some test, elfutils-devel.x86_64 affect this issue.

[Constellation]

Thank you. I'll investigate this.

[Constellation]

In the meantime, I stopped building & linking backward-cpp, it solves this :)