[Openexr-devel] How to write an exr image?

[Patrick]

Hi All,

I have just installed OpenEXR and trying to understand how to read/write 
exr files. How do I compile the examples in IlmImfExamples folder? If I 
type make it says:

make: Nothing to be done for 'all'

If it's already compiled, how do I run it?

Also,
has anyone a sample code that I can simply compile that would write an 
.exr image? Even a plain black image would be great.

I have tried to compile manually the code in the IlmImfExamples folder 
above but I'm getting lots of errors like the following:

In function `writeRgba1(char const*, Imf::Rgba const*, int, int)':
: undefined reference to 
`Imf::RgbaOutputFile::RgbaOutputFile[in-charge](char const*, int, int, 
Imf::RgbaChannels, float, Imath::Vec2<float>, float, Imf::LineOrder, 
Imf::Compression)'

Thanks for you help!
patrick