Alpine C Binding

[Alien2150]

hey guys,

I tried to compile h3 in a dockerized alpine environment. I added the requirements and run cmake but only getting this error message:

cmake .
-- The C compiler identification is GNU 6.4.0
-- The CXX compiler identification is Clang 5.0.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- broken
CMake Error at /usr/share/cmake/Modules/CMakeTestCCompiler.cmake:52 (message):
  The C compiler

    "/usr/bin/cc"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /h3-master/CMakeFiles/CMakeTmp

    Run Build Command:"/usr/bin/make" "cmTC_8e320/fast"
    /usr/bin/make -f CMakeFiles/cmTC_8e320.dir/build.make CMakeFiles/cmTC_8e320.dir/build
    make[1]: Entering directory '/h3-master/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_8e320.dir/testCCompiler.c.o
    /usr/bin/cc   -fPIE   -std=gnu11 -o CMakeFiles/cmTC_8e320.dir/testCCompiler.c.o   -c /h3-master/CMakeFiles/CMakeTmp/testCCompiler.c
    Linking C executable cmTC_8e320
    /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_8e320.dir/link.txt --verbose=1
    /usr/bin/cc      -rdynamic CMakeFiles/cmTC_8e320.dir/testCCompiler.c.o  -o cmTC_8e320
    /usr/lib/gcc/x86_64-alpine-linux-musl/6.4.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find Scrt1.o: No such file or directory
    /usr/lib/gcc/x86_64-alpine-linux-musl/6.4.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find crti.o: No such file or directory
    /usr/lib/gcc/x86_64-alpine-linux-musl/6.4.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lssp_nonshared
    collect2: error: ld returned 1 exit status
    make[1]: *** [CMakeFiles/cmTC_8e320.dir/build.make:87: cmTC_8e320] Error 1
    make[1]: Leaving directory '/h3-master/CMakeFiles/CMakeTmp'
    make: *** [Makefile:126: cmTC_8e320/fast] Error 2




  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:50 (project)


-- Configuring incomplete, errors occurred!
See also "/h3-master/CMakeFiles/CMakeOutput.log".
See also "/h3-master/CMakeFiles/CMakeError.log".

I can paste the outout / error log if it helps.

Regards,
Thomas

[isaacbrodsky]

Hi, it looks like the linker is having difficulty finding part of the C runtime. Could you paste how you installed dependencies, and ideally the steps you followed to get to this point?

[Alien2150]

Hey @isaacbrodsky , thanks for the reply. Here are the steps to reprodouce:

docker pull alpine:3.8
docker run -it --rm alpine:3.8 /bin/ash
apk add cmake make gcc libtool
wget https://github.com/uber/h3/archive/master.zip 
unzip master.zip 
cd h3-master
cmake .

[isaacbrodsky]

Please try installing musl-dev. I also needed to install g++ due to a bug in our CMakeLists.txt. (C++ isn't actually used in this project)

Inside the container:

apk add cmake make gcc libtool musl-dev g++
wget https://github.com/uber/h3/archive/master.zip
unzip master.zip
cd h3-master
cmake .
make
make test

[Alien2150]

Looks good. Maybe this should be put into the README? Can come up with a PR

[isaacbrodsky]

Thanks for helping to update the docs, @Alien2150 !