Re: [Cython] PR on refcounting memoryview buffers
Den 18. feb. 2013 kl. 19:32 skrev Sturla Molden : > The problem this addresses is when GCC does not use atomic builtins and emits > __synch_fetch_and_add_4 and __synch_fetch_and_sub_4 when Cython are > internally refcounting memoryview buffers. For some reason it can even happen > on x86 and amd64. > Specifically, atomic builtins are not used when compiling for i386, which is MinGWs default target architecture (unless we specify a different -march). GCC will always encounter this problem when targeting i386. Thus the correct fix is to use fallback when GCC is targeting i386 — not when GCC is targeting MS Windows. So I am closing this PR. But Mark's fix must be corrected, because it does not really address the problem (which is i386, not MinGW)! Sturla ___ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
[Cython] Sage build broken
Hi, I just noticed that the Sage build is broken: """ gcc -pthread -shared -L/jenkins/sage/sage-5.2/local/lib build/temp.linux-x86_64-2.7/sage/rings/polynomial/polydict.o -L/jenkins/sage/sage-5.2/local/lib -L/release/merger/sage-5.2/local/lib -lcsage -lstdc++ -lntl -lpython2.7 -o build/lib.linux-x86_64-2.7/sage/rings/polynomial/polydict.so /usr/bin/ld: build/temp.linux-x86_64-2.7/sage/rings/polynomial/polydict.o: relocation R_X86_64_PC32 against `__Pyx_PyDict_IterItems' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Bad value collect2: ld returned 1 exit status command 'gcc' failed with exit status 1 """ Looks like a problem in Sage to me, the gcc command really lacks the -fPIC here. Stefan ___ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
