add docker env

[suhanyujie]

Solve the issue #113

[Hywan]

Thanks for the proposal! Where is the source of the Docker file? Maybe we could integrate it directly in this repository, what do you think?

[suhanyujie]

@Hywan Yes, I think so

[Hywan]

Thanks for the Dockerfile!

[Hywan]

It is better to checkout the master branch rather than the trying branch. The latter is used by Bors to run the tests.

[suhanyujie]

@Hywan Hi, I'm having some problems. When I checkout the master branch, I can't build the docker env(docker build -t phpwasm:0.0.3 .), it prompt error like this:

...
checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
checking dynamic linker characteristics... GNU/Linux ld.so
(cached) (cached) checking how to hardcode library paths into programs... unsupported
configure: patching config.h.in
configure: creating ./config.status
config.status: creating config.h
mkdir .libs
 gcc -I. -I/home/circleci/project/src -DPHP_ATOM_INC -I/home/circleci/project/src/include -I/home/circleci/project/src/main -I/home/circleci/project/src -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib -DHAVE_CONFIG_H -c /home/circleci/project/src/wasm.cc -fPIC  -DPIC -o .libs/wasm.o
cc -shared  .libs/wasm.o  -L/home/circleci/project/src/. -lwasmer_runtime_c_api  -Wl,-rpath -Wl,/home/circleci/project/src/. -Wl,-soname -Wl,wasm.so -o .libs/wasm.so
/usr/bin/ld: cannot find -lwasmer_runtime_c_api
collect2: error: ld returned 1 exit status

...

And I don't know how to resolve it.

[Hywan]

I should use -L instead of -l, but as a short-term solution, did you try to set the LD_LIBRARY_PATH environment variable?

[Hywan]

Isn't it a workaround for China? Do we want to keep this in the general Dockerfile?

[Hywan]

Should we update since we have our own Dockerfile file?

[suhanyujie]

Thanks for your advice. I'll resolve it.

[Hywan]

Thanks :-)