[Python-Dev] Library pragma in PC/config.h (original) (raw)

Greg Ward gward@python.net
Thu, 3 Aug 2000 21:24:44 -0400

Hi all --

for building extensions with non-MS compilers, it sounds like a small change to PC/config.h is needed. Rene Liebscher suggests changing

#ifndef USE_DL_EXPORT /* So nobody needs to specify the .lib in their Makefile any more / #ifdef _DEBUG #pragma comment(lib,"python20_d.lib") #else #pragma comment(lib,"python20.lib") #endif #endif / USE_DL_EXPORT */

to

#if !defined(USE_DL_EXPORT) && defined(_MSC_VER) ...

That way, the convenience pragma will still be there for MSVC users, but it won't break building extensions with Borland C++. (As I understand it, Borland C++ understands the pragma, but then tries to use Python's standard python20.lib, which of course is only for MSVC.) Non-MSVC users will have to explicitly supply the library, but that's OK: the Distutils does it for them. (Even with MSVC, because it's too much bother not to specify python20.lib explicitly.)

Does this look like the right change to everyone? I can check it in (and on the 1.6 branch too) if it looks OK.

While I have your attention, Rene also suggests the convention of "bcpp_python20.lib" for the Borland-format lib file, with other compilers (library formats) supported in future similarly. Works for me -- anyone have any problems with that?

    Greg

-- Greg Ward - programmer-at-big gward@python.net http://starship.python.net/~gward/ Know thyself. If you need help, call the CIA.