Re: Library / header compilation mismatch

From:
Victor Bazarov <v.Abazarov@comAcast.net>
Newsgroups:
comp.lang.c++
Date:
Wed, 21 Jan 2009 17:42:11 -0500
Message-ID:
<gl88c3$gca$1@news.datemas.de>
stephen.diverdi@gmail.com wrote:

This isn't strictly a language issue, but it seems enough of a cross-
IDE and -platform concern to merit asking here.

I'm running into a maintenance issue for a library I've written. The
problem is I have a config.h file that includes a bunch of #define
directives that control the compilation of the library. Those
directives can also be overridden by options to the compiler. The
problem arises when I compile the library with one set of directives,
and then in a project that links to the library, compiler options
override the library's directives and the headers that are included
don't match the library that was compiled. Strange errors and fun
debugging ensues.

I'd like to find a way to test for this condition automatically,
ideally at compile time without runtime overhead. [..]

Has anyone dealt with this issue before? Are there any standard
approaches or clever tricks? Any ideas? Thanks,


I am sure folks who release[d] a library for more than one platform
have. And I am *more than certain* that there is *no* "standard
approach". As for "clever tricks", cleverness is in the eye of the
beholder, but I would bet that if solutions exist, they are *all*
compiler-specific. Consider asking in the corresponding compiler
newsgroups.

V
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