Regression tests fail for Python 2.6 on Win32

[JimKleckner]

8 regression tests fail on Python 2.6 release using Visual Studio 9.0 on Windows XP.

This was run using the changeset 1291:16fc9454a2e5

ERROR: compiling (c) coercearraytoptr
ERROR: compiling (cpp) coercearraytoptr
ERROR: compiling (c) declarations
ERROR: compiling (cpp) declarations
ERROR: compiling (c) excvalcheck
ERROR: compiling (cpp) excvalcheck
ERROR: compiling (c) nogil
ERROR: compiling (cpp) nogil

coercearraytoptr.obj : error LNK2019: unresolved external symbol _spam referenced in function ___pyx_f_16coercearraytoptr_eggs
cython-devel\BUILD\compile\c\coercearraytoptr.pyd : fatal error LNK1120: 1 unresolved externals
coercearraytoptr.obj : error LNK2019: unresolved external symbol _spam referenced in function "void __cdecl __pyx_f_16coercearraytoptr_eggs(void)" (?__pyx_f_16coercearraytoptr_eggs@@YAXXZ)
cython-devel\BUILD\compile\cpp\coercearraytoptr.pyd : fatal error LNK1120: 1 unresolved externals
declarations.obj : error LNK2019: unresolved external symbol _ifnp referenced in function ___pyx_f_12declarations_f
cython-devel\BUILD\compile\c\declarations.pyd : fatal error LNK1120: 1 unresolved externals
declarations.obj : error LNK2019: unresolved external symbol _ifnp referenced in function "void __cdecl __pyx_f_12declarations_f(void)" (?__pyx_f_12declarations_f@@YAXXZ)
cython-devel\BUILD\compile\cpp\declarations.pyd : fatal error LNK1120: 1 unresolved externals
excvalcheck.obj : error LNK2019: unresolved external symbol _tomato referenced in function ___pyx_f_11excvalcheck_eggs
excvalcheck.obj : error LNK2019: unresolved external symbol _grail referenced in function ___pyx_f_11excvalcheck_eggs
excvalcheck.obj : error LNK2019: unresolved external symbol _spam referenced in function ___pyx_f_11excvalcheck_eggs
cython-devel\BUILD\compile\c\excvalcheck.pyd : fatal error LNK1120: 3 unresolved externals
excvalcheck.obj : error LNK2019: unresolved external symbol _tomato referenced in function "void __cdecl __pyx_f_11excvalcheck_eggs(void)" (?__pyx_f_11excvalcheck_eggs@@YAXXZ)
excvalcheck.obj : error LNK2019: unresolved external symbol _grail referenced in function "void __cdecl __pyx_f_11excvalcheck_eggs(void)" (?__pyx_f_11excvalcheck_eggs@@YAXXZ)
excvalcheck.obj : error LNK2019: unresolved external symbol _spam referenced in function "void __cdecl __pyx_f_11excvalcheck_eggs(void)" (?__pyx_f_11excvalcheck_eggs@@YAXXZ)
cython-devel\BUILD\compile\cpp\excvalcheck.pyd : fatal error LNK1120: 3 unresolved externals
nogil.obj : error LNK2019: unresolved external symbol _e2 referenced in function ___pyx_f_5nogil_h
nogil.obj : error LNK2019: unresolved external symbol _e1 referenced in function ___pyx_f_5nogil_h
nogil.obj : error LNK2019: unresolved external symbol _g2 referenced in function ___pyx_f_5nogil_h
cython-devel\BUILD\compile\c\nogil.pyd : fatal error LNK1120: 3 unresolved externals
nogil.obj : error LNK2019: unresolved external symbol "void * __cdecl e2(void)" (?e2@@YAPAXXZ) referenced in function "void __cdecl __pyx_f_5nogil_h(struct _object *)" (?__pyx_f_5nogil_h@@YAXPAU_object@@@Z)
nogil.obj : error LNK2019: unresolved external symbol "void __cdecl e1(void)" (?e1@@YAXXZ) referenced in function "void __cdecl __pyx_f_5nogil_h(struct _object *)" (?__pyx_f_5nogil_h@@YAXPAU_object@@@Z)
nogil.obj : error LNK2019: unresolved external symbol _g2 referenced in function "void __cdecl __pyx_f_5nogil_h(struct _object *)" (?__pyx_f_5nogil_h@@YAXPAU_object@@@Z)
cython-devel\BUILD\compile\cpp\nogil.pyd : fatal error LNK1120: 3 unresolved externals

[JimKleckner]

I guess these tests also fail with 2.5.

[JimKleckner]

Hm. It happened on my cygwin-based platform as well.

[JimKleckner]

Lisandro Dalcin appears to have proposed some test fixes.

See:

 http://article.gmane.org/gmane.comp.python.cython.devel/3279  http://article.gmane.org/gmane.comp.python.cython.devel/3280

[JimKleckner]

Lisandro has checked in this patch:

 http://www.cython.org/hg/cython-devel/rev/5905f7b15cb2

for this Trac item #104

I still get these link errors with cygwin/gcc using cython-dev changeset 1296:96f15e379330:

ERROR: compiling (c) coercearraytoptr
ERROR: compiling (cpp) coercearraytoptr
ERROR: compiling (c) declarations
ERROR: compiling (cpp) declarations
ERROR: compiling (c) excvalcheck
ERROR: compiling (cpp) excvalcheck

[robertwb]

Lisandro's patch was for warnings, not errors. Somehow on windows we need to tell it to ignore missing symbols (that would be "found" at runtime).

[robertwb]

Short of more details (I don't have a windows computer to test this on) I'm going to move this to a further milestone.

[SamB]

Just where are these symbols supposed to come from? Hint: DLL exports are slightly different in nature from ordinary C symbols...

[robertwb]

We keep bumping this, it's be nice to get an actual fix...

[robertwb]

See thread at  http://thread.gmane.org/gmane.comp.python.cython.devel/6423/focus=6458