[RFC] Do we care about binary compatibility of code produced by cross-compilers?

[Paolo Carlini]

Hi,

I'm asking, because I'm not using cross-compilers much myself and we 
never discussed the issue before, as far as I can remember... The issue 
arises because I noticed that we have picked to be run only when native 
quite a few simple AC_TRY_COMPILE autoconf tests: it would be easy, I 
think, to run all those tests unconditionally, but then, in general, 
some features would become available to cross-compilers, with potential 
binary compatibility issues with old object code. A typical example 
would be [GLIBCXX_CHECK_INT64_T]...

Paolo.