[Buildroot] [PATCH] squashfs: fix build with gcc 7

[Baruch Siach]

Hi Thomas,

On Mon, Jul 31, 2017 at 07:34:33PM +0200, Thomas Petazzoni wrote:
> On Tue, 25 Jul 2017 21:28:15 +0300, Baruch Siach wrote:
> > gcc 7 with -Os (optimize for size) takes the liberty to remove the code of
> > inline function entirely. This leads to undefined function references at link
> > time. Restore gcc original inline behaviour to fix this issue.
> > 
> > Fixes:
> > http://autobuild.buildroot.net/results/3c5/3c5b1d799dce3ba361d618330c242bf4eba76019/
> > http://autobuild.buildroot.net/results/09f/09f350b62e2486404b78222dce211400bb233000/
> > http://autobuild.buildroot.net/results/693/693960ed7c01622c756dcc929e83b3b713c16ccc/
> > 
> > Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> > Signed-off-by: Baruch Siach <baruch at tkos.co.il>
> > ---
> > The gcc doc[1] doesn't mention that feature of C99. A gcc bug, maybe?
> 
> Applied to master, thanks. To be honest, I hesitated between your
> proposal and patching the mksquashfs.c code, but OK, I went with your
> solution.
> 
> Can you send a patch upstream that removes the "inline" or switches
> them to "static inline" ?
> 
> Thanks!

Done.

https://sourceforge.net/p/squashfs/mailman/message/35982546/

I'm still not sure what is the root cause if this issue, and whether this is 
GCC/C99 expected behaviour.

baruch

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