From: Charles R H. <cha...@gm...> - 2006-10-27 07:37:03
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On 10/26/06, Charles R Harris <cha...@gm...> wrote: > > > > On 10/26/06, Mathew Yeates <my...@jp...> wrote: > > > > yes, I got around the problem from my previous posting "distutils > > question". I added ld_args[:0] = ['-m64'] to line 209 of > > python2.5/distutils/unixcompiler.py. Lovely, yes I know. > > > > I now get an error "numpy/core/src/multiarraymodule.c:7230: error: > > `NPY_ALLOW_THREADS' undeclared". This is after several billion warning > > messages of the form > > numpy/core/src/multiarraymodule.c:5010: warning: dereferencing > > type-punned pointer will break strict-aliasing rules > > > GCC? Needs the -no-strict-aliasing flag. Everybody hates the default > except the compiler writers because you can't cast pointers between > different sized types, something the linux kernel and numpy do a lot. Things > can fail badly if you don't set the flag and ignore the warnings. > Make that -fno-strict-aliasing. The whole command line on x86 looks like: gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -D_GNU_SOURCE -fPIC -fPIC Chuck |