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From "Graham Dumpleton" <>
Subject Re: Possibly OT: g++ 4.0.1 on Mac OS X
Date Sat, 07 Jul 2007 11:02:18 GMT
On 07/07/07, Farokh Irani <> wrote:
> >On 06/07/07, Farokh Irani <> wrote:
> >>I'm trying to link together a couple of .o files into a .so file
> >>using g++. The problem is that even though I have a -o specified, no
> >>file is generated and no error comes up. Any pointers on how to
> >>figure out what might be going on, or even where I could look for
> >>more info, would be appreciated.
> >>
> >>This is with g++ 4.0.1 on Mac OS X 10.4.10.
> >
> >If you are trying to create an Apache module .so, why aren't you using apxs?
> >
> >You can specify that g++ should be used instead of gcc by saying:
> >
> >  apxs -S CC=g++ -c mod_example.c
> >
> >This is much better and more portable than trying to create the .so
> >yourself. This is more so the case on MacOS X as how you build a
> >dynamically loadable module is different to options you would use for
> >other platforms. Also, on MacOS X a dynamically loadable module has to
> >be created in a different way to a shared library, they are not
> >interchangeable.
> OK, I'm willing to give that a shot, but how do I use apxs to
> compile/link a multi-file source module? IE Right now I've got a
> small module that has 3 files, but I expect the source tree to grow
> to many more (possibly a hundred or more source files).

Look at the manual page for 'apxs' on your system.

If you have lots of non Apache specific modules then compile them with
g++ direct if you want, but then compile Apache specific stuff with:

  apxs -S CC=g++ -c mod_foo.c file1.c file2.c object1.o object2.o

The apxs command can be given code files or existing compiled object
files (I think).

You could also put your non Apache specific files in a library and
link to that library when building the module.

  apxs -S CC=g++ -c mod_foo.c file1.c file2.c -lmylibrary

The important bit is using apxs for the compilation of Apache code
files and doing the final link to get the Apache module .so.


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