failed to build x265

[morphological]

Running Kubuntu 18.04, Kernel 4.15
I have installed all the 265 dev packages that are available, but I keep getting this error:

encoder/CMakeFiles/encoder.dir/build.make:446: recipe for target 'encoder/CMakeFiles/encoder.dir/api.cpp.o' failed
make[2]: *** [encoder/CMakeFiles/encoder.dir/api.cpp.o] Error 1
Reason: FAILURE Some kind of error occured: Unable to build x265

When trying to manually compile x265 with the latest git, I get that very same error.
https://github.com/videolan/x265

Here the output of cmake from when I manually tried to compile x265 from git:
All the dependencies appear to be met.

-- The C compiler identification is GNU 7.3.0
-- The CXX compiler identification is GNU 7.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detected x86_64 target processor
-- Found NUMA: /usr  
-- Looking for numa_node_of_cpu
-- Looking for numa_node_of_cpu - found
-- libnuma found, building with support for NUMA nodes
-- Looking for include file inttypes.h
-- Looking for include file inttypes.h - found
-- Performing Test CC_HAS_NO_STRICT_OVERFLOW
-- Performing Test CC_HAS_NO_STRICT_OVERFLOW - Success
-- Performing Test CC_HAS_NO_NARROWING
-- Performing Test CC_HAS_NO_NARROWING - Success
-- Performing Test CC_HAS_NO_ARRAY_BOUNDS
-- Performing Test CC_HAS_NO_ARRAY_BOUNDS - Success
-- Performing Test CC_HAS_FAST_MATH
-- Performing Test CC_HAS_FAST_MATH - Success
-- Performing Test CC_HAS_STACK_REALIGN
-- Performing Test CC_HAS_STACK_REALIGN - Success
-- Performing Test CC_HAS_FNO_EXCEPTIONS_FLAG
-- Performing Test CC_HAS_FNO_EXCEPTIONS_FLAG - Success
-- Found nasm: /usr/bin/nasm (found version "2.13.02") 
-- Found Nasm 2.13.02 to build assembly primitives
-- x265 version 0.0
-- The ASM_NASM compiler identification is NASM
-- Found assembler: /usr/bin/nasm
-- Looking for strtok_r
-- Looking for strtok_r - found
-- Looking for include file getopt.h
-- Looking for include file getopt.h - found
-- Configuring done
-- Generating done
-- Build files have been written to: /home/frank/x265-master/source

[ddennedy]

We are getting the same failure on our daily builds since July 21. x265 project is notorious for introducing commits that break builds frequently from introducing C++ code into their C headers. Ultimately, this is not our bug except sometimes if the problem appears too long we will change the script to pin it to a certain version. See all these newly reported build bugs against the upstream x265 project:
https://bitbucket.org/multicoreware/x265/issues?status=new&status=open
https://bitbucket.org/multicoreware/x265/issues/425/build-fail-when-compiling-from-the-default
https://bitbucket.org/multicoreware/x265/issues/426/commit-b0d31e2-has-build-issues-on-linux
https://bitbucket.org/multicoreware/x265/issues/427/build-error-on-macos-since-commit-5d34bbf
https://bitbucket.org/multicoreware/x265/issues/428/commit-c258d21-breaks-build-on-linux-as

[morphological]

Thanks for the info.
I was able to compile version 2.5 from July 13th from the stable branch
https://github.com/videolan/x265/releases/tag/2.5

Now can I tell the script to clone this specific version?
The way it's set up with this REPOLOCS option, I can only enter the main git, --single-branch & -b are not available.

I wanna try the melt created by your script and then report back on our other issue, haha.

[ddennedy]

The top of the script simply and clearly makes it possible to use any git ref (tag, branch, or sha1sum) but not other git command line options. You are requiring a lot of help, and. I am no longer available to help you - too time-consuming.

[morphological]

I apologize, but x265 being broken is obviously not my fault.

I have successfully compiled mlt with your script and will test it now.
I hope that you will still be able to spare a minute for the results.

For anyone else who is facing this problem on 18.04
Simply replace X265_HEAD=1 with X265_HEAD=2
2 is the stable branch, but you can also use the tag for any version <2.5
Any version above 2.5 produces an error during compilation.

Later on in the script there will also be an autoconf error.
Do not use the 2.69-10 package from the official repo, it won't work.
Install from here instead:
https://github.com/Distrotech/autoconf

Finally, libtheora-dev 1.1 causes problems
Installing from this ppa solved it for me: https://launchpad.net/ubuntu/+source/libtheora