Re: [gentoo-user] ccache: unsupported compiler option

[Dale <teendale@vista-express.com>]

Justin Findlay wrote:
> I'm trying to find out why ccache won't cache anything.  Building and
> maintaining for three months an entire system got me all of 5 cache
> hits.  What can I do to encourace more cache usage?  One of the methods
> I'm investigating is to determine and eliminate CFLAGS arguments that
> may cause 'unsupported compiler option' to be incremented.  Is there
> anything else I can try?
>
> # ccache -s
> cache directory                     /var/tmp/ccache
> cache hit                              5
> cache miss                           153
> called for link                    14836
> multiple source files                 87
> compile failed                         2
> preprocessor error                  1732
> bad compiler arguments                 1
> not a C/C++ file                    4774
> autoconf compile/link              28079
> unsupported compiler option         2569
> no input file                       8965
> files in cache                       306
> cache size                           4.3 Mbytes
> max cache size                       2.5 Gbytes
>
> # grep CFLAGS /etc/make.conf
> CFLAGS="-march=athlon64 -mtune=athlon64 -m64 -O3 -fmessage-length=0 -pipe"
> CXXFLAGS="${CFLAGS}"
>
>
> Justin
>   

Well, I have been using mine longer than that.  I have even done a
emerge -e world a couple times.

> root@smoker / # ccache -s
> cache hit                              0
> cache miss                             0
> files in cache                         0
> cache size                             0 Kbytes
> max cache size                     768.0 Mbytes
> root@smoker / #

Looks like you are not alone.

Dale

:-)  :-)
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