fastcall doesn't install on Travis, ref

[tiangolo]

I'm trying to build something (active-win ) that uses fastcall on Travis. But I'm getting an error.

So I tried to fork fastcall and start setting up Travis for it, but I'm getting the same error.

Here's the line with the error:

https://travis-ci.org/tiangolo/fastcall/jobs/226075410#L492

/usr/bin/ld: CMakeFiles/ref.dir/__/ref/src/binding.cc.o: relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a shared object; recompile with -fPIC

I tried setting up some environment variables and modifying the CMakeLists.txt, but I'm not an expert in C / C++, so I'm not really sure what to try.

Do you have any insights on what could be happening?

---

BTW, this should help in direction of #7

[unbornchikken]

Hey, thanks for trying to make fastcall to work with Travis. Since I don't have any working prototype, please try the following on yours:

Attempt 1 - change the line on the bottom of deps/ref-cmake/CMakeLists.txt to:

set_target_properties(
  ref
  PROPERTIES
  PREFIX "" 
  SUFFIX ".node"
  POSITION_INDEPENDENT_CODE ON)

If it's not working then:

Attempt 2 - add this to fastcall's root CMakeListst.txt to the top of the elseif(UNIX) branch:

set(CMAKE_POSITION_INDEPENDENT_CODE ON)

Hope it helps. And if it is, then please put on a small PR from this, I'm gonna make it into a release ASAP.

[tiangolo]

Hmm, it didn't work. I even tried with both changes...

https://travis-ci.org/tiangolo/fastcall/jobs/226450862

Do you have any ideas?

BTW, in case you want to check the code, my branch is here: https://github.com/tiangolo/fastcall/tree/feature/travis

[unbornchikken]

Attempt 1. should work. I don't see my suggested changes in your repo. Would you try that way?

[tiangolo]

It's here (in a feature/travis branch):

Here's the line with the changes of attempt 1.

[unbornchikken]

Ok, I think I've found it. You gotta go with CMake 2.8.9+.

addons:
  apt:
    sources:
      - george-edison55-precise-backports
    packages:
      - cmake
      - cmake-data

Form there: travis-ci/travis-ci#4631 (comment)

[unbornchikken]

Side note: would you like to join to fastcall as collaborator? Your travis feature branch is a nice promo. I would be really appreciated if you could make a PR to land.

[tiangolo]

Cool! Let me try it.

---

Thanks for the offering! It sounds great :) Let me work on it.

[tiangolo]

That did it! All green! ✅ https://travis-ci.org/tiangolo/fastcall/builds/230019588

---

Let me try removing the code from attempt 1 and 2 to see what is actually necessary. Then I'll create the PR.

[unbornchikken]

So, let's wait for Travis to run all tests, and see if it gets ready for make it into a new release.

[unbornchikken]

I have not forgotten this, but I'm very tight on schedule right now. I'll get back to it as soon as I can, sorry.