[Cython] Possible Freeze-related regression from 0.14 to 0.14.1
Matthew Fox
matthew at kerkhofftech.ca
Wed Feb 16 20:23:40 CET 2011
Of course I would forget to attach the test case. Let's try again.
> -----Original Message-----
> From: Matthew Fox
> Sent: February-16-11 11:22 AM
> To: 'cython-devel at python.org'
> Subject: Possible Freeze-related regression from 0.14 to 0.14.1
>
> My project using Cython-freeze compiles properly with Cython 0.14.0 but
> fails with 0.14.1. I run Python 2.5 on Debian Lenny and the
> cython_freeze from github (October 29, 2009). The attached simple test
> case (1 plain .pyx and .pxd, 1 .pyx with main(), and a makefile)
> demonstrates the issue- it works under 0.14.0 and fails under 0.14.1.
>
> The issue appears to be that Cython 0.14.0 declares an "int
> __pyx_module_is_main_mainster = 0" in mainster.c, while 0.14.1 declares
> it as static: "static int __pyx_module_is_main_ mainster = 0". When
> linking the object files, this results in the error from GCC:
>
> gcc -Xlinker -export-dynamic -Wl,-O1 -Wl,-Bsymbolic-functions -
> L/usr/lib/python2.5/config executable.o mainster.o foo.o -lpython2.5
> -lm -lpthread -ldl -lutil -o executable
> executable.o: In function `main':
> [...]/executable.c:54: undefined reference to
> `__pyx_module_is_main_mainster'
> collect2: ld returned 1 exit status
> make: *** [executable] Error 1
>
> If I remove "static" from the declaration in mainster.c, I can
> recompile it and link the object files as I could do with Cython
> 0.14.0.
>
> Let me know if you need more details or if it's not a bug at all and
> there's a workaround. My workaround for now will be to use 0.14.0.
>
> Thanks,
> Matt Fox
>
>
>
> Phone: 604-824-2770 x305
> Toll free: 800-360-2319
> Email: matthew at kerkhofftech.ca
> Web: http://www.kerkhofftech.ca
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