On 1 Mar 2018, at 00:50, Ben Elliston <b...@air.net.au> wrote: > > On Wed, Feb 28, 2018 at 03:55:57PM +0100, Thorsten Glaser wrote: > >> I really have no other idea that???s in scope. After all, >> CC_FOR_BUILD is the *only* tool guaranteed to correspond to the >> target (in FreeWRT speak; --build= in GNU autotools speak) system. > > We're trying to guess the build system, not the target. When > configuring cross-tools, it has always been necessary to specify the > target triplet with --target.
Thorsten is not doing a cross-compile; the native system is x32, with an x32->x32 compiler. The exception is that the odd binary is amd64 rather than x32, so it's not a *pure* system, but build=host=target=x32. James > In a native environment, there should be numerous ways of determining > the system ABI (if it matters) without invoking a C compiler (which is > often not installed, leading to spurious problem reports from users). > > Ben
