On Mon, 21 Jan 2013, Sašo Kiselkov wrote:
On 01/21/2013 03:20 PM, Luca De Pandis wrote:
Hi guys,
i would like to become a SFE software porter for the OI community.
I've already downloaded the SFE trunk from the svn repository, installed
Sun Studio 12.1 and CBE.
I know I might be slightly off-topic here, but isn't OI going to switch
to GCC for building? Studio is proprietary and being at the mercy of
Oracle and their wild licensing policies doesn't seem like a good idea
to me. Illumos has made the switch go GCC-4.4.4 almost half a year ago
and it is in the IO repos (pkg:/developer/illumos-gcc).
GCC poses interesting issues which as which libgcc_s.so.1 to use.
GCC-4.4.4 uses a different libgcc_s.so.1 than SFE GCC 4.6.2.
Recently, OpenIndiana SFE was completely re-spun to use SFE GCC 4.6.2
and any program built with this compiler which needs libgcc_s.so.1
will use the one from GCC 4.6.2. There is also the problem with C++
and C++ ABIs. The GCC C++ library ABIs don't seem to be all that
stable (especially when one considers templates and evolving C++
standards) and mixing code between major GCC versions is definitely
not advised. Linux deals with this by rebuilding everything for each
major release with the same compiler. Solaris has historically had a
much more stable run-time and ABI than Linux and the user expectations
are different.
Regardless, depending on Oracle for the compiler is definitely not a
good long-term plan.
Besides GCC, the clang compiler works on OpenIndiana and may be
promising once the FreeBSD people get all the kinks figured out and
someone develops an OpenMP implementation for it.
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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