Earlier this week, I've asked:
> I'm in the process of updating my cross-compilation
> environment from cygwin-1.5.12 to cygwin-1.5.24, mainly
> because we have had code generation problems with
> gcc-3.3.3-3 from the former.
>
> However, I get the following message
>
> No support for this host/target combination
>
> from gcc-3.4.4/libstdc++-v3/configure (crossconfig.m4), because
> indeed cygwin is not mentioned in any of the clauses of the main
> case statement.
I've finally found a way to get a working linux->cygwin
cross-compiler. Here are the steps I've followed, for the
record:
1) As I've seen in other mails, I've deleted the
libstdc++-v3 directory from the gcc-g++ source distro.
2) I've downloaded the binary native distro for gcc-core,
to find the exact configure options used (using the
strings program on gcc.exe).
3) I've compiled/installed my gcc-g++ cross-compiler sans
libstdc++-v3 using this configuration (especially,
--enable-sjlj-exceptions).
4) I've downloaded the binary native distro for gcc-g++, in
order to cp -r /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++
into $INSTALL/lib/gcc/i686-pc-cygwin/3.4.4/include,
to cp /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/lib{std,sup}c++.{a,la}
into $INSTALL/i686-pc-cygwin/lib and to edit the .la
files to refer to my $INSTALL directory (for -L options
in dependencies and the libdir value).
--
Daniel Villeneuve
Architecte en logiciel, RO, division AD OPT
Software Architect, OR, AD OPT Division
Kronos
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