[Vm-dev] PR portability

[stes]

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It would help portability if the M4 macros of the configure script would be
updated.  For example in my case I could conveniently switch between SunPro
cc
and GNU cc (gcc) by running configure, and it would then autodetect the warn
all flag.

I can currently compile on Solaris using either SunPro or gcc, but
the autodetection in 

   ./platforms/unix/config/ax_cflags_warn_all.m4

is not working.

The opensmalltalk config directory could be updated like this:

in 

    ./platforms/unix/config/acinclude.m4

add:

m4_include([ax_prepend_flag.m4])
m4_include([ax_require_defined.m4])
m4_include([ax_compiler_vendor.m4])
m4_include([ax_cflags_warn_all.m4])

This could be done perhaps by copying from the latest autoconf-archive:

  ax_prepend_flag.m4 ax_require_defined.m4 ax_compiler_vendor.m4
ax_cflags_warn_all.m4

into the opensmalltalk config directory and then running the Makefile ...

This change will benefit all platforms.

Regards,
David Stes


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