[mpich-discuss] ROMIO compiler warnings

[Dave Goodell]

On Feb 17, 2011, at 1:20 PM CST, Jeff Squyres wrote:

> Here's a typical set of build flags:
> 
> -g -Wall -Wundef -Wno-long-long -Wsign-compare -Wmissing-prototypes -Wstrict-prototypes -Wcomment -pedantic -Werror-implicit-function-declaration -finline-functions -fno-strict-aliasing -pthread -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_ROMIOCONF_H 
> 
> Does this help?

Yeah, this helps.  It looks like the warnings are primarily coming from "-pedantic".  Unfortunately, "-pendantic" is, well, pedantic.  I find that many of the warnings (not ones that you pasted) are beyond obnoxious and extremely annoying/ugly to satisfy.  That's why we don't really ever build with it enabled.

I've created a ticket for following up on this, but unless RobL or someone else gets the time to tackle it, it probably won't get fixed for a while: https://trac.mcs.anl.gov/projects/mpich2/ticket/1438

-Dave

> On Feb 17, 2011, at 1:35 PM, Dave Goodell wrote:
> 
>> Jeff,
>> 
>> We'll take a look, but we haven't seen these under our typical "warnings enabled" builds.  Can you send us the flags that you are passing to gcc so that we can easily reproduce these warnings?
>> 
>> -Dave
>> 
>> On Feb 17, 2011, at 10:40 AM CST, Jeff Squyres wrote:
>> 
>>> I notice that gcc 4.1 and 4.5 issue a bunch of warnings with the ROMIO from MPICH2 v1.3.1.  Are these warnings that you care about, perchance? 
>>> 
>>> The output below is from compiling on a RHEL 5.5 machine using the gcc 4.5.0 compilers (snipped output below to show just the warnings):