[rrd-developers] rrdtool-1.3.99909060808 configure error

[Barrie]

Hi Tobi,

I'm working with rrdtool-1.3.99909082100 now. I added the change noted  
below and that works OK. The configure script now makes it through the  
IEEE  math test.

The next failure is at the ctime_r test. ctime_r for win32 is included 
in win32comp.c in the src directory. I'm working on how configure can 
access that function.

Cheers, Barrie

Tobias Oetiker wrote:
> Hi Barrie,
>
> Today Barrie wrote:
>
>   
>> Hi BenBE,
>>
>> Thanks for the help. I didn't see your post come in, sorry for the late reply.
>>
>>     
>>> It uses the Solaris 10 branch, even though it should use none of them???
>>>
>>>       
>> I see the problem now. Just need to work out how to fix it. This is proving to
>> be a good learning exercise. :-)
>>
>> /* solaris 10 it defines isnan such that only forte can compile it ... bad bad
>> */
>> #if (defined(HAVE_ISNAN) && defined(isnan) && defined(HAVE_FPCLASS))
>> #  undef isnan
>> #  define isnan(a) (fpclass(a) == FP_SNAN || fpclass(a) == FP_QNAN)
>> #endif
>>
>> Thanks.
>>     
>
> note that the way configure works is by trying many things out and
> when the fail going on to the next one ... it will take the one
> which works ...
>
> have a look at configure.ac and m4/acinclude.m4 how this is done
> ...
>
> in any event, to code above could be fixed like this:
>
> #if (defined(HAVE_ISNAN) && defined(isnan) && defined(HAVE_FPCLASS) && defined(FP_SNAN) && defined(FP_QNAN))
> #  undef isnan
> #  define isnan(a) (fpclass(a) == FP_SNAN || fpclass(a) == FP_QNAN)
> #endif
>
> I have updated the trunk ... tomorrows snapshot will contain the
> change ...
>
> cheers
> tobi
>
>
>   
>> Cheers, Barrie
>>
>>     
>>> Am 09.08.2009 11:52, schrieb Barrie:
>>>       
>>>> / checking if IEEE math works with signal
>>>>         
>>> /The excerpt from the config.log is the following (if I found the correct
>>> place).
>>>
>>> configure:24927: checking if IEEE math works with signal(SIGFPE,SIG_IGN)
>>> configure:25019: gcc -o conftest.exe  -D_GNU_SOURCE -fno-strict-aliasing
>>> -Wall -std=c99 -pedantic -Wundef -Wshadow -Wpointer-arith -Wcast-align
>>> -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline
>>> -Wold-style-definition -W  -fPIC -DPIC
>>> -L/d/projects/rrdtool_mingw32/contrib
>>> -L/d/projects/rrdtool_mingw32/contrib conftest.c  >&5
>>> conftest.c:1: warning: -fPIC ignored for target (all code is position
>>> independent)
>>> conftest.c:116:5: warning: "HAVE_IEEEFP_H" is not defined
>>> conftest.c:120:5: warning: "HAVE_FP_CLASS_H" is not defined
>>> conftest.c: In function `main':
>>> conftest.c:169: warning: implicit declaration of function `fpclass'
>>> conftest.c:169: warning: nested extern declaration of `fpclass'
>>> conftest.c:169: error: `FP_SNAN' undeclared (first use in this function)
>>> conftest.c:169: error: (Each undeclared identifier is reported only once
>>> conftest.c:169: error: for each function it appears in.)
>>> conftest.c:169: error: `FP_QNAN' undeclared (first use in this function)
>>> configure:25023: $? = 1
>>> configure: program exited with status 1
>>>
>>> It uses the Solaris 10 branch, even though it should use none of them???
>>>
>>> Regards,
>>> BenBE.
>>>       
>>     
>
>   
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