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When I try to build Python 3.0 on QNX 6.3.2, the build has the following
error:
 gcc -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes
 -I. -IInclude -I./Include -DPy_BUILD_CORE -o Python/pythonrun.o
Python/pythonrun.c
 Python/pythonrun.c: In function `Py_InitializeEx':
 ...
 Python/pythonrun.c:180: `LC_CTYPE' undeclared (first use in this function)
 Python/pythonrun.c:180: (Each undeclared identifier is reported only once
 Python/pythonrun.c:180: for each function it appears in.)
 ...
 make: *** [Python/pythonrun.o] Error 1
LC_CTYPE is defined in locale.h, which isn't included because
HAVE_LANGINFO_H isn't defined because QNX 6.3.2 doesn't provide
langinfo.h. The setlocale call in the trunk is guarded by
HAVE_LANGINFO_H, so maybe that should be done here as well.
Once this error has been fixed, the following error occurs:
 gcc -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes
 -I. -IInclude -I./Include -DPy_BUILD_CORE -DPYTHONPATH='":plat-qnx6"' \
 	-DPREFIX='"/usr/local"' \
 	-DEXEC_PREFIX='"/usr/local"' \
 	-DVERSION='"3.0"' \
 	-DVPATH='""' \
 	-o Modules/getpath.o ./Modules/getpath.c
 ./Modules/getpath.c:132: invalid initializer
 ...
 make: *** [Modules/getpath.o] Error 1
This version of GCC apparently cannot handle wchar_t array initializers.
 This can be worked around by changing the type of lib_python to a
wchar_t pointer instead.

The patch is looking good to me.

Why is this a release blocker? QNX is not a supported platform, so
failures on it cannot possibly block a release.

Committed to Python 3.2-trunk as rev78347. Thanks for your patch!