[Numpy-discussion] Byte aligned arrays
sturla at molden.no
Thu Dec 20 15:45:07 EST 2012
On 20.12.2012 21:24, Henry Gomersall wrote:
> I didn't know that. It's a real pain having so many libc libs knocking
> around. I have little experience of Windows, as you may have guessed!
Originally there was only one system-wide CRT on Windows (msvcrt.dll),
which is why MinGW linkes with that by default. But starting with the
release of VS2003, Microsoft decided to reserve msvcrt.dll for system
resources and create a libc "DLL Hell" for user apps. Visual Studio 2003
came with static and dynamic versions of the CRT library, as well as
single- and multithreaded ones... Then everyone building apps that used
DLLs or COM objects just had to make sure that nothing conflicted. And
for every later version of Visual Studio they have released further more
CRT versions, adding to the confusion.
Currently: The official Python 2.7 binaries are built with Visual Studio
2008 and linked with msvcr90.dll.
MinGW has import libraries for the other CRTs Microsoft has released, so
just add -lmsvcr90 to your final linkage.
Python's distutils will control the build process for extensions
automatically. Adding -lmsvcr90 is one of the things that distutils will
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