[petsc-dev] ccache sucks!

[Barry Smith]

On Sep 6, 2014, at 10:05 PM, Satish Balay <balay at mcs.anl.gov> wrote:

> I removed "export"  - so suggesting it as:
> 
> ./configure CC="ccache clang -Qunused-arguments”

too much work

> 
> or equivalent.. [for eg: CFLAGS=-Qunused-arguments]
> 
> Satish
> 
> On Sat, 6 Sep 2014, Barry Smith wrote:
> 
>> but doesn’t ./configure bypass CC and CXX :-)
>> 
>> On Sep 6, 2014, at 9:54 PM, Satish Balay <balay at mcs.anl.gov> wrote:
>> 
>>> On Sat, 6 Sep 2014, Barry Smith wrote:
>>> 
>>>> 
>>>> The first configure fails with ccache, removing it does not fail
>>> 
>>>>>>>>> 
>>> stderr:
>>> clang: warning: argument unused during compilation: '-I /var/folders/c1/ldz_dt8n2r3dtwv_chp5pfr40000gq/T/petsc-a0322M/config.setCompilers'
>>> <<<<<<<
>>> 
>>> https://code.google.com/p/chromium/wiki/CCacheMac says use:
>>> 
>>> CC="ccache clang -Qunused-arguments"
>>> CXX="ccache clang++ -Qunused-arguments"
>>> 
>>> Satish
>> 
>>