[Vm-dev] Squeak on OpenIndiana (with clang)

[stes]

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Hello,

Here's some news on compiling Squeak on Solaris and OpenIndiana. 
OpenIndiana is an illumos based Unix-like operating system derived from
OpenSolaris; 

As far as I can see, Squeak has always supported SunOS and Solaris very
well,
so it's just a matter of keeping that, as it is or was in the past.

On OpenIndiana, I've compiled "Squeak" with GCC 7.5 and Clang 9.0.1.
OpenIndiana includes a clang 8.0.1 and 9.0.1.  I only tested the clang
9.0.1.

Also I've proposed to include "Squeak" in the oi-userland, which is a
framework for open source packages for OpenIndiana; so that it is simple,
to install the "Squeak VM" on OpenIndiana without having to compile
anything.

I have included the MIT license and a copyright notice of opensmalltalk-vm
in the package of course.

To compile with clang on OpenIndiana, there's the VM_LABEL issue
which Eliot Miranda explained in a different thread about "profiling":

In platforms/unix/vm/sqPlatformSpecific.h #define VM_LABEL(foo) 
to override and "clear" or disable the other VM_LABEL definition.

With that definition of VM_LABEL  the clang 9.0.1 compile of the
squeak.stack.spur VM works fine and it works.   I must add that I seem to be
having the same issue with the optimizer as in GCC : -O2 does not work for
me with neither gcc nor clang.

Special thanks to everybody in the "Squeak" and "opensmalltalk-vm" team,
to Eliot Miranda for including the Sun patches,
and to Tobias Pape for including the fix for ax_cflags_warn_all.m4,
which makes the configure script powerful to easily switch between
compilers,
which is working very well thanks to the autoconf configure script.

Thanks,
David Stes

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