[rrd-users] Re: IEEE math on PPC

[Frédéric Mangeant]

learnrrd tool a écrit :

>Hi,
>
>I am using a PPC board and I am trying to compile rrdtool-1.2.11 for
>it. When I run configure, this is the error I get:
>
>checking for isinf... yes
>checking if IEEE math works out of the box... no
>checking if IEEE math works with the -ieee switch... no
>checking if IEEE math works with the -qfloat=nofold switch... no
>checking if IEEE math works with the -w -qflttrap=enable:zerodivide... no
>checking if IEEE math works with the -mieee switch... no
>checking if IEEE math works with the -q float=rndsngl switch... no
>checking if IEEE math works with the -OPT:IEEE_NaN_inf=ON switch... no
>checking if IEEE math works with the -OPT:IEEE_comparisons=ON switch... no
>checking if IEEE math works with fpsetmask(0)... no
>checking if IEEE math works with signal(SIGFPE,SIG_IGN)... no
>configure: error:
>Your Compiler does not do propper IEEE math ... Please find out how to
>make IEEE math work with your compiler and let me know (oetiker at ee.ethz.ch).
>Check config.log to see what went wrong ...
>
>
>What does this error mean? Where can I check if IEEE math is indeed
>supported on PPC ? Is it the kernel / Compiler ? Could you point out
>any specific header / .config files I can check to verify if IEEE math
>is supported well on PPC.
>
>Thanks!
>  
>

Hi

on which hardware/OS are you trying to build RRDtool 1.2.11 ?

I got it to compile with AIX 5.1 ML8 (on a pSeries 670, Power4+ chip) 
and GCC 3.3.2 :

[...]
checking if IEEE math works out of the box... yes
[...]

-- 

Frédéric Mangeant

Steria EDC Sophia-Antipolis



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