On Sat, 29 Oct 2005 10:05:45 +0200, Joerg Schilling writes:
>A lot of software (all that uses autoconf) cannot be compiled on a different
>CPU without manually editing all autoconf results which may take a long time.
I cross-build OpenEmbedded (GNU+Linux) for our PowerPC boards on both
Solaris 9/SPARC and Linux/x86 hosts.
Cross-building with autoconf is not too bad these days - and OpenEmbedded
makes it pretty simple to handle the odd cases where autoconf gets it wrong
(and if a simple environment variable override doesn't work).
I do use the CSW stuff to provide an environment that overrides a lot of the
Solaris system tools with more Linux/GNU friendly tools (Linux people have
trouble writing portable code) which helps a lot.
But also, I have noticed quite an improvement in the autoconf scripts
recently - they appear to be trying to avoid those "run a program" type
tests now.
I don't think autoconf deserves the bad rap about cross-compiling anymore
(besides, its just a tool really, the problem was always with the software
authors which didn't write the autoconf scripts properly - they tended not
to cross-compile so much until recently).
>As the Solaris ON tree is not using autoconf, this is different....
Do you think this will make it easier or harder? I had a quick look at the
OpenSolaris sources and it appears that there is support for cross compiling
in the Makefiles (the NATIVE* variables). How good is that support?
What about the ON tools - how well do they support cross-building?
In any case, the question is moot (for me). I have this nice quad Opteron
system I can use for OpenSolaris building, and my target system is PowerPC.
So I have to make this work :-) Cheers!
Murray...
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