Re: libtool and gcj

[Per Bothner]

Anthony Green wrote:

> I've been using a hacked version of libtool to build shared libraries
> of java code in with gcj.  The one problem I had to work around is
> that libtool insists on adding "-DPIC" to the compilation line.  gcj's
> -D is different from gcc and g++.  My hack is to simply strip out the
> "-D". However - now my tree contains a mix of java and c code and I
> need to use -DPIC with gcc.

> How do we change libtool to only use -DPIC where appropriate?

Well, the generated libtool script is close - you just need to
fix the pic_mode definition that is in the GCJ TAG section.

The following kludge seems to solve this problem:

mv libtool libtool.tmp && \
sed -e '/BEGIN LIBTOOL TAG CONFIG: GCJ/,/END LIBTOOL TAG CONFIG: 
GCJ/s/-DPIC/-fPIC/' <libtool.tmp >libtool && chmod +x libtool

Of course the real fix involves fixing ltmain.sh, but that goes
beyond my ability to peer into the bowels of libtool.
--
        --Per Bothner
address@hidden   http://www.bothner.com/per/