[foreign] Instructions for using libraries on Windows

[Jorn Vernee]

> The `make update-build-doc` does not work on windows [1], so I ask
> that you generate the .html dos for me instead.

Apologies. It seems to be a configuration problem on my end, and not 
necessarily a problem with Windows.

Jorn

Jorn Vernee schreef op 2019-01-17 17:36:
> Hi,
> 
> I have updated panama_foreign.md with instructions for jextracting and
> running OpenGL and Python. I have also tried other Windows applicable
> libraries, here were the issues:
> 
> LAPACK & BLAS: require libgfortran-3 as a dependency, which I couldn't
> find a binary distro for so quickly. (MINGW has a package for it, but
> only libgfortran-4)
> 
> Tensorflow: is crashing jextract with a stack overflow error.
> 
> ```
>     Exception in thread "main" java.lang.StackOverflowError
>         at
> jdk.internal.clang/jdk.internal.clang.StructType.<init>(StructType.java:37)
>         at
> jdk.internal.clang/jdk.internal.clang.StructType.<init>(StructType.java:32)
>         at 
> jdk.internal.clang/jdk.internal.clang.Type.<init>(Type.java:30)
>         at
> jdk.internal.clang/jdk.internal.clang.Type.canonicalType(Native
> Method)
>         at
> jdk.jextract/com.sun.tools.jextract.TypeDictionary.getInternal(TypeDictionary.java:134)
>         at
> jdk.jextract/com.sun.tools.jextract.TypeDictionary.getInternal(TypeDictionary.java:134)
>         at
> jdk.jextract/com.sun.tools.jextract.TypeDictionary.getInternal(TypeDictionary.java:134)
>         at
> jdk.jextract/com.sun.tools.jextract.TypeDictionary.getInternal(TypeDictionary.java:134)
>         ...
> ```
> 
> FWIW, you made a note about needing to pass `-C -c -C c++` to jextract
> so it doesn't interpret some methods as varargs. I've tried without
> those flags and am observing the same vararg problem, but in that case
> extraction does succeed.
> 
> The other libraries libproc, readline, and unistd don't seem
> applicable to Windows. I will be on the lookout for Windows specific
> examples that could be interesting.
> 
> The `make update-build-doc` does not work on windows [1], so I ask
> that you generate the .html dos for me instead.
> 
> Here is the updated panama_foreign.md:
> http://cr.openjdk.java.net/~jvernee/panama/panama_foreign.md
> 
> Jorn
> 
> [1] : 
> https://mail.openjdk.java.net/pipermail/build-dev/2019-January/024666.html