New submission from Joel <j...@jms.id.au>: tl;dr libffi needs to be updated so Python will build with clang on Linux on amd64
libffi, part of ctypes, has a test for PC relative relocations. It assembles a assembler file with CC, and looks for the string "warning" in the output. clang produces harmless warning unrelated to the assembly operation, but the test causes HAVE_AS_X86_PCREL to be left unset. When trying to assemble Modules/_ctypes/libffi/src/x86/unix64.S, the compiler finds invalid syntax and the build fails. This was raised on the libffi mailing list, with a proposed patch http://sourceware.org/ml/libffi-discuss/2011/msg00024.html The patch appears to be part of upstream libffi: https://github.com/atgreen/libffi/blob/master/configure.ac#L296 So perhaps the best fix would be to update the version of libffi in the tree. ---------- components: Build messages: 142686 nosy: shenki priority: normal severity: normal status: open title: libffi does not build with clang on amd64 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12812> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
