[OpenSmalltalk/opensmalltalk-vm] Cannot build unix sources (missing file: bld/plugins.int) (#507)

I am trying to build the unix sources for this project, exactly following the HowToBuildFromSources manual (the easy way). But unfortunately, when running make I get an error that bld/plugins.int is missing:

$ make
[ -d bld ] || mkdir bld
[ -f bld/Makefile ] || ( cd bld; ../config/configure; )
checking for gcc... gcc
# ... (75 lines skipped)
checking whether to build static libraries... no
/workspace/opensmalltalk-vm/src
/workspace/opensmalltalk-vm/src/plugins
checking sanity of generated src directory... bad
missing file: /workspace/opensmalltalk-vm/platforms/unix/bld/plugins.int
make: *** [Makefile:5: all] Error 1

See yourself:

Is it me or is the documentation of the build process not up to date? Looking forward to your help!

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The instructions in HowToBuildFromSources are for the old squeakvm. For Cog, use the mvm script under the various build directories based on platform/wordsize/ISA and then product/interpreter/object-memory. Here you will find the plugins.int and plugins.ext files. Now choose the build directory for your build variant (production, assert, debug etc.).

Example,

$ cd build.linux64x64/squeak.cog.spur/build
$ ./mvm

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Thank you very much for your help, Subbu. So now I ran exactly your two commands, but first, the build failed because it was missing clang. Do I assume correctly that the following dependency should be mentioned anywhere in the repository?

sudo apt-get -y install clang

However, after installing clang and trying again, the build still fails.

The output contains the following errors:

• error: unknown warning option '-Wno-unused-but-set-variable'; did you mean '-Wno-unused-const-variable'? [-Werror,-Wunknown-warning-option]
  

• /mnt/c/Users/Christoph/OneDrive/Dokumente/Squeak/Christoph/git/opensmalltalk-vm/platforms/Cross/plugins/B3DAcceleratorPlugin/B3DAcceleratorPlugin.h:14:13: fatal error: 
  /mnt/c/Users/Christoph/OneDrive/Dokumente/Squeak/Christoph/git/opensmalltalk-vm/platforms/Cross/plugins/B3DAcceleratorPlugin/B3DAcceleratorPlugin.h:14:13: fatal error: 'GL/gl.h' file not found
  #   include <GL/gl.h>
              ^~~~~~~~~
  1 error generated.
  Makefile:179: recipe for target 'B3DAcceleratorPlugin.lo' failed
  make[1]: *** [B3DAcceleratorPlugin.lo] Error 1
  Makefile:543: recipe for target 'B3DAcceleratorPlugin.la' failed
  make: *** [B3DAcceleratorPlugin.la] Error 2
  

• Additionally, I am getting a large number of 177 warnings, which are probably not so important?

Could you tell me where I can get the gl.h header?

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Hi Subbu, thank you again! After installing libgl1-mesa-dev, the build process ran successfully, however it was still missing that clang flag.

My questions are resolved so far, but I believe that further people could benefit from the exact documentation of the necessary dependencies:

first, the build failed because it was missing clang. Do I assume correctly that the following dependency should be mentioned anywhere in the repository?

sudo apt-get -y install clang

I haven't used clang. I use the gcc toolchain. Sorry

Which exact packages do I have to install? The platforms/unix/config/configure script requires clang to be installed as noted above. At the moment I have installed gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 and clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final), but that clang version does not understand the no-unused-but-set-variable flag. Could you maybe refer to a specific package? :-)

I just read the HowToBuild file in the build.linux* directory. I installed the package string listed for Ubuntu, but the clang flag is still not recognized ...

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Does the configure script not check for the presence of the OpenGL headers?

Am I just talking to an intelligent bot? :-) No, at least I did not found an error referring to this particular problem.

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That was me, replying to the mailing list. ;-)

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Ah, the bot should mention this :-)

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Can we close this issue now?

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@eliotmiranda My concrete problem was resolved, but it might be helpful for others to add some exact documentation of the dependencies needed for the build without using cygwin. Feel free to close if you think this is not important. :-)

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