boydm / scenic_math Goto Github PK

Hey, I just wanted to try scenic, but I have a few problems with it.

Steps to reproduce

1. mix scenic.new app_name command (normal output, so there is no sense to paste it her)
   Of course now deps directory is empty which is totally normal.

2. Before I do any smallest change I simply run mix deps.get (as in instructions)
   For now the found problem is visible. Just enter generated app directory and run command ls deps/scenic_math/c_src/

3. Follow tutorial by running mix scenic.run

Expected behaviour

2nd point (for this version) we should see only line.c and matrix.c files

3rd point should not fail (assuming that all requirements are met)

Current behaviour

Even in 2nd point we can see problem. Except files described in Expected behaviour we have 2 more i.e. line.o and matrix.o.

In 3rd point there is really weird error (for somebody who do not use C/C++ language)

# skipped debug from other dependencies

==> scenic_math
mkdir -p priv
cc c_src/line.o -L/home/$USER/.asdf/installs/erlang/21.0.8/usr/lib -fPIC -shared  -dynamiclib -o priv/line.so
c_src/line.o: file not recognized: File format not recognized
collect2: error: ld returned 1 exit status
Makefile:42: polecenia dla obiektu 'priv/line.so' nie powiodły się
make: *** [priv/line.so] Błąd 1 # here is Makefile error translated to Polish locale
could not compile dependency :scenic_math, "mix compile" failed. You can recompile this dependency with "mix deps.compile scenic_math", update it with "mix deps.update scenic_math" or clean it with "mix deps.clean scenic_math"
==> scenic_example
** (Mix) Could not compile with "make" (exit status: 2).
You need to have gcc and make installed. If you are using
Ubuntu or any other Debian-based system, install the packages
"build-essential". Also install "erlang-dev" package if not
included in your Erlang/OTP version. If you're on Fedora, run
"dnf group install 'Development Tools'".

Found problem

I have checked twice to be sure, but from what I can see I think that you have simply forgot to clean project after publish its hex release. Here are files which I think should not be included:

1. deps/scenic_math/c_src/line.o
2. deps/scenic_math/c_src/matrix.o

Current workaround

If you can confirm that in point 2 you are seeing o files you can simply remove them by running: rm deps/scenic_math/c_src/*.o (assuming that scenic_math is your project hex dependency). After it you can go to step 3.