Re: ANN: GCC 4.9.0 for Mac OS X Mavericks

[marioeroy@gmail.com]

On Wednesday, April 30, 2014 5:12:08 AM UTC-4, Simon Wright wrote:
>
> ...
> 
> The command 'gnat', as originally build, failed with SIGSEGV. It was
> 
> rebuilt on its own, using the project file gnatcmd.gpr, and no longer
> 
> failed; the working version is provided.
> 

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.