Re: ANN: GCC 4.9.0 (2014) for Max OS X Mavericks

[marioeroy@gmail.com]

On Sunday, June 1, 2014 5:06:04 AM UTC-4, Simon Wright wrote:
>
> ...
> 
> GNAT GPL 2014 (for Mac) supports C, C++, Ada, and Objective C. My
> 
> release additionally supports Fortran and Objective C++. In all cases,
> 
> the compiler itself is built without change. I had to rebuild the
> 
> command 'gnat', because the original build with the compiler failed with
> 
> SIGSEGV; something to do with exceptions, I need to report this but I'm
> 
> a bit too vague on the details.
> 

I could not get the work around using gprbuild to work on Mavericks 10.9.5. The gnat -v (specifying an invalid argument) still crashes. After many attempts have finally tracked this down.

One needs to pass --with-host-libstdcxx=-lstdc++ when configuring GCC. Gnat will no longer SIGSEGV after make install.

I used gnat-gpl-2014-x86_64-apple-darwin12.5.0 to build a recent 4.9 revision from the 4.9 branch.

svn export -r 216107 svn://gcc.gnu.org/svn/gcc/branches/gcc-4_9-branch gcc-4.9-20141010

Remember to pass along --with-host-libstdcxx=-lstdc++ when configuring GCC. That's it.

Regards,
Mario

Notes: Some sites out there suggest running with LDFLAGS=-lgcc_eh make ...

That will work and the build process will seem to have succeeded. However, the gnat -v (testing an invalid argument) will still crash. Instead, --with-host-libstdcxx=-lstdc++ is needed when configuring GCC. -lgcc_eh is not necessary when building GCC.