On 12/31/2015 04:15, David Chisnall wrote:
The newer versions of GCC are GPLv3 and so are unacceptable for the FreeBSD
base system. Most of libgcc in base now comes from compiler-rt. The correct
solution would be to identify the missing functionality in compiler-rt so that
it can be fixed (with patches ideally, but even a list of the missing functions
and what they do would be helpful). Things like libquadmath, which are only
needed for the port, belong in ports.
When I look which symbols clang++-compiled executables require from
libgcc_s.so, list only has these symbols (mostly the first one):
_Unwind_Resume
_Unwind_DeleteException
_Unwind_GetCFA
_Unwind_RaiseException
_Unwind_SetGR
_Unwind_SetIP
I couldn't find any of them defined in compiler-rt. But it looks like
libunwind project implements them: http://www.nongnu.org/libunwind/.
There is also the port devel/libunwind. I am not sure if this means that
libunwind should be imported into the base.
If only general C++ programs could be untangled from libgcc, this
fortran problem will be solved.
Yuri
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