Folks, In preparation for adding aarch64 string functions into cortex-strings, I'd like feed back on the following series of patches.

1/5 Trivial whitespace cleanups. 2/5 Autotools foo for cross building support. 3/5 Autotools foo for architecture detection. 4/5 Missing LDADD and CFLAGS setting. 5/5 Use --std=gnu99

I'm particularly interested in views on 3/5. This patch sets direction for autoconf detection of the host architecture. The intention is that we retain the single toplevel Makefile.am which gains AM_CONDITIONAL support for the detected host triple.

The aarch64 specific code will follow in a different patch set.

Cheers /Marcus