Re: cross compiler host vs build

[Felix Lee <felix.1@canids.net>]

dan clark <dlc@ncube.com>:
> The configure script in 6.0 checks if the host != target to decide if a
> cross compiler should be used.

no, it doesn't.  is_cross_compiler is a badly named variable.  it
means you're building a cross development gdb, and it doesn't
have anything to do with whether you're using a cross compiler to
build gdb.  (the variable name makes more sense when you have an
integrated gdb/gcc source tree.)

there are different tests elsewhere for build != host.

(note, configure is a file generated by autoconf.  patches should
be made to configure.in.)

I don't really see a reason for the variable is_cross_compiler
to exist.  the comment says
    # Define is_cross_compiler to save on calls to 'test'.
but it's usually used like this
    if test x${is_cross_compiler} != xno ; then
so it's not reducing the number of tests much.  I think directly
testing host = target would be clearer.
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