[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Building 64-bit C++ shared libraries

From: Bob Friesenhahn
Subject: Re: Building 64-bit C++ shared libraries
Date: Tue, 13 Jan 2004 11:29:05 -0600 (CST)

On Tue, 13 Jan 2004, Albert Chin wrote:

> [resending as this garnered no response]

Sorry about that.

> libtool 1.5 has the following to pass the -m64 GCC flag through to the
> command building a C++ library:
>       # gcc -m* arguments should be passed to the linker via $compiler_flags
>       # in order to pass architecture information to the linker
>       # (e.g. 32 vs 64-bit).  This may also be accomplished via -Wl,-mfoo
>       # but this is not reliable with gcc because gcc may use -mfoo to
>       # select a different linker, different libraries, etc, while
>       # -Wl,-mfoo simply passes -mfoo to the linker.
>       -m*)
> This doesn't do anything for building 64-bit C++ libraries with the
> vendor C++ compiler. Do we need to do something similar? Or is it
> easier for us to say that if $LD == $CC for a tag, any unrecognized
> options are passed to $compiler_flags?

This does seem like a reasonable approach to me.  At the time -m
support was added, I believe that usually LD was not the same as CC.

Bob Friesenhahn

reply via email to

[Prev in Thread] Current Thread [Next in Thread]