building gcj on OS X (also AWT)

[Andrew Pinski]

> 
> I'd like to build gcc 3.4.0 on Mac OS X 10.3.3. In particular,
> I want gcj, hopefully with whatever AWT/Swing comes with it,
> just so I can write command line and also simple GUI user apps.
> 
> I've got a few questions on the build procedure. I've already
> downloaded gcc-core and gcc-java 3.4.0 from my local mirror.
> I unpacked them in ~/src, and also created a build-directory there
> ~/src/gcc_build_dir (so I can run the configure and make commands
> from there) as the directions
> http://gcc.gnu.org/install/configure.html
> recommend.

You also need gcc-c++ as the Java compiler depends on the C++
compiler.
 
> 
> So, since I guess I'm building what the directions
> refer to as a "native compiler" (?), is it correct that my
> procedure should be:
> 
> cd ~/src/gcc_build_dir
> 
> ../gcc-3.4.0/configure --prefix=/usr/local/gcj \
> --enable-threads=posix --enable-shared
> 
> make CC='cc -no-cpp-precomp' bootstrap

You really do not need to set the CC anymore.

> 
> ?
> 
> Do I then have to run 'make' with *no* target specified?
> (Before running "make install")

no, it is already built.

> 
> Looking at
> http://gcc.gnu.org/install/specific.html#powerpc-*-darwin*
> it says:
> | The default stack limit of 512K is too small, which may cause
> | compiles to fail with 'Bus error'. Set the stack larger, for
> | instance by doing "limit stack 800".
> 
> What does it mean to "limit stack 800" and how would I go about
> it? Is that something that gets done with ./configure or at
> build-time?

The default stack limit on Panther (10.3) is much bigger than
older versions, this really only applies to the older ones.


> 
> Also, is GCJ's AWT currently the best option (vs. Swing) to do
> a simple GUI? Are there any special ./configure options I need
> to use? The instructions
> http://gcc.gnu.org/install/configure.html
> hint at --with-x and --enable-java-awt=xlib
> and although I *do* have Apple's X11 installed, I'm not sure
> what to do here. Will gcj's awt use OS X's Quartz by default
> if I leave those arguments out?
> 
> Will AWT only work with X (and not Quartz)?

Not yet, I have been thinking about adding it but I really do not
have time to add support at this point.

Thanks,
Andrew Pinski
a Mac OS X user and a GCC developer