[R-SIG-Mac] biOps and fftw3

[Simon Urbanek]

On Apr 12, 2011, at 5:49 PM, Carl Witthoft wrote:

> I have successfully installed biOps, at least in the sense that the package loads and many of the functions work.  The question I have now is how to get biOps to recognize fftw3 during compilation.
> 
> I installed fftw3 from a Terminal session, and "make check" passed successfully.  The files residing in /usr/local/lib are
> 
> libfftw3.a	libfftw3.la
> 
> I checked for the existence of a certain item(?) as:
> 
> % grep fftw_plan_dft libff*
> Binary file libfftw3.a matches
> 
> But then, when I ask the Package Installer in Rgui.app to install biOps from the localsource tarball, I get:
> 
> * installing *source* package ‘biOps’ ...
> checking for gcc... gcc -arch i386 -std=gnu99
> checking for C compiler default output file name... a.out
> checking whether the C compiler works... yes
> checking whether we are cross compiling... no
> checking for suffix of executables...
> checking for suffix of object files... o
> checking whether we are using the GNU C compiler... yes
> checking whether gcc -arch i386 -std=gnu99 accepts -g... yes
> checking for gcc -arch i386 -std=gnu99 option to accept ISO C89... none needed
> checking for TIFFOpen in -ltiff... yes
> checking for jpeg_destroy_compress in -ljpeg... yes
> checking for fftw_plan_dft in -lfftw3... no
> checking how to run the C preprocessor... gcc -arch i386 -std=gnu99 -E
> checking for grep that handles long lines and -e... /usr/bin/grep
> checking for egrep... /usr/bin/grep -E
> 
> (and more)
> 
> So, my question is: how come the checker doesn't "see" fftw_plan_dft ?
> 

That's the wrong question -- the question is why does the check fail? And you'll get the answer only by looking at config.log. Since you didn't share that important part you'll have to either figure it out yourself or include that detail ;). Note that static libraries don't cascade dependencies, so you have to make sure they are included in your flags or the configure is written well enough to know about them.

Cheers,
Simon
 


> biOps library will load, and other functions like,say imgBlur run fine, and in case it helps, the error message I get if I try to run one of the fft routines is:
> 
> Error in .C("fft_image", image = as.complex(imgmatrix), width = as.integer(width),  :
>  C symbol name "fft_image" not in DLL for package "biOps"
> 
> Thanks
> 
> Carl
> 
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