On Friday, 10 April 2015 at 23:04:44 UTC, Andrei Alexandrescu
wrote:
Martin Nowak added recently a nice feature to the Phobos
makefile: by specifying e.g.
make std/stdio.test
only the unittests for std/stdio.d would build and run. This
greatly improves development turnaround for Phobos.
I've used this feature regularly since introduction, but it
seems to not work with at least std.concurrency. Running
make std/concurrency.test
produces:
duplicate symbol _D3std11concurrency10MessageBox6__initZ in:
concurrency.o
generated/osx/release/64/libphobos2.a(concurrency_329_3ee.o)
duplicate symbol _D3std11concurrency10MessageBox7__ClassZ in:
concurrency.o
generated/osx/release/64/libphobos2.a(concurrency_329_3ee.o)
duplicate symbol _D3std11concurrency10MessageBox6__vtblZ in:
concurrency.o
generated/osx/release/64/libphobos2.a(concurrency_329_3ee.o)
ld: 3 duplicate symbols for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to
see invocation)
What makes MessageBox special?
Andrei
works for me, might be an issue with clang being your C compiler?
try with CC=gcc make -f posix.mak std/concurrency.test
