[ODE] Building on MacOSX (and now Linux)

[Rodrigo Hernandez]

Samuli Riihonen wrote:

> Hi all,
>
> Just sent Rodrigo a fixed version of osx.cpp that compiles also using  
> gcc-3.3 (at least on my system: OS X 10.4.6 Tiger).
> All of ode now compiles just fine with both gcc 3.3 and 4.0.1 after  
> renaming test_chain1.c to .cpp and adding LINK=$(CXXLINK) to  
> Makefile.am in ode/src.
>
Ok, try now, I changed the test Makefile.am to use g++ as the C compiler 
if on OSX, in theory should have the same effect as renaming the file, 
right?

> Googling for isnanf, I found the following:
> http://lists.apple.com/archives/Unix-porting/2004/Aug/msg00066.html
>
> Could someone who is having the problem just try to change the call  
> from isnanf to isnan and see if that fixes the problem?
>
Well, it does fix it, however, in order to do it the way it should be 
done, we should use the HAVE_ISNANF define thats on config.h
I tried doing so, but since configure does detect (at least on MinGW) 
the function, it has no effect.