Re: mingw32 target broken [cygwin as well] [the saga continues]

[Jeff Sturm <jsturm@one-point.com>]

On 8 Dec 2001, Adam Megacz wrote:
> > http://gcc.gnu.org/ml/libstdc++/2001-03/msg00144.html
> 
> A bit stale, but I was able to hand-edit for the same effect, and it
> worked.

A dirty little secret: if all you want is the java runtime, you can skip
building libstdc++.  Just remove it from the toplevel Makefile.

Unfortunately, libjava assumes cross compilers target newlib, just as
libstdc++ does...

if test -n "${with_cross_host}"; then
   # We are being configured with a cross compiler.  AC_REPLACE_FUNCS
   # may not work correctly, because the compiler may not be able to
   # link executables.

   # We assume newlib.  This lets us hard-code the functions we know
   # we'll have.

This never seemed like desirable behavior to me, in part because newlib
isn't even GNU software.  I'd prefer that configure attempt to link a
program before it assumes it cannot.

> I've also noticed that the configure in the root directory of the gcc
> checkout does not pass the --target=$TARGET option to the invocation
> of configure for libstdc++-v3, although it does pass --with-target-dir

In the target subdirs, "target" becomes "host".

Jeff