[U-Boot] [PATCH] Coldire: mcf52x2: Improve gcc version detection

[Richard Retanubun]

Hi Wolfgang,

> What makes you think that
> 
> 	echo __GNUC__ __GNUC_MINOR__ | $(CC) -E -xc - \
> 	| tail -n 1 | sed -e 's/ /0/'
> 
> would be any better than parsing the output of "$(CC) --version"? 
> 
> The fact that it takes 4 processes instead of one (or say two if we
> add the filtering) is not a recommendation.
>

Thanks for the comments,

sorry if I'm (re)stating the obvious, but just to be clear:

ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)

while simple, will cause gcc-4.0.x or gcc-3.x.x to try to use the -mcpu option
which is not supported yet until gcc-4.2.+ (if I am not mistaken).

I realize the world is always moving forward and this is an increasingly moot argument,
but the embedded world is often very attached to our toolchains :P

I am sure there are many better ways of extracting the version string, my attempt is to
highlight one way that converts the version to a number and use the '-gt' to compare on it.

Feel free to educate me in 'the better way', my user-space kung-fu is not that strong yet :)

Regards,

- Richard Retanubun