demo: src/bf_test blocks cross-compilation

[<pl...@pi...>]

Hi,

it seems that something is trying to execute during compilation. This is 
a stopper on a cross build but probably should not be happening anyway.

Making all in demo
make[2]: Entering directory `/tmpd/arm/nfs/debs/tmpd/gnuplot/demo'
Creating binary data files
../src/bf_test: ../src/bf_test: cannot execute binary file
make[2]: *** [binary1] Error 126


Maybe I'm missing it but I can't see a way to skip the demo being built.

thanks for any help, Peter.