RE: Using HEAD, still CXX is not used to link C++ libs

[Boehne, Robert]

Brett,

What I meant to say was that you should check that the "libtool" script
your project generates is of the proper version.  If you have the CVS
sources and the same environment on the same platform, then building
in the Libtool CVS source directory should give you the same libtool
script as is created in your project.  My guess is that you have CVS
libtool installed but your project isn't actually using it.  Your project
probably has an old copy of libtool.m4 in it's aclocal.m4.

HTH,

Robert

-----Original Message-----
From: Brett H. Williams [mailto:address@hidden]
Sent: Tuesday, August 27, 2002 4:15 PM
To: Boehne, Robert
Cc: Libtool mailing list; Keith Richling; Craig Files
Subject: Re: Using HEAD, still CXX is not used to link C++ libs

On Aug 27, Boehne, Robert wrote:
> When the tag is CXX, CC = `your favorite C++ compiler, aka $CXX`
> Make sure your project actually has the latest libtool in it,
> and instead of hacking the generated libtool, submit a pach
> to libtool.m4 that supports your compiler.  It is easier in the
> long run.
>
> HTH,
>
> Robert

Robert,

Sorry, I'm not sure I understand everything you said--forgive my ignorance.
I'm not sure what you mean by 'the tag' in this context.

I'm also not sure how I can get a more recent libtool than HEAD.... or did I
not get what I thought I got?  Should I be checking out an untagged cvs
version?

So the assumption is that $CC = $CXX when using C++?  This is not always true.
While for the simple project in question it _could_ be, this seems a blatant
misuse of $CC.  Otherwise, why have $CXX at all?

Plus, autoconf makes those distinctions for me (and most people that use
libtool are using autoconf, aren't they?).

As far as submitting a patch to m4, I assumed it would always be rejected since
C++ support is unofficial.  Plus, the compiler is GCC which surely is
supported.

Thanks for the help.  I guess I'll have to decide whether to continue hacking
libtool or to mess up what I consider to be the proper use of $CC.

The question is mostly moot as I can't move more complex projects to libtool
due to the fact that it always compiles source files twice.  When using the STL
and C++, this can take a LONG time... anyone know how to tell libtool that the
object files I'm generating are all PIC, and as such the .o and .lo files are
bitwise identical?

Brett H. Williams