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How do i get the PNG driver?

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How do i get the PNG driver?

A) To get the PNG driver you will need to have installed z,png and gd libraries. In particular gd version >= 1.7.3 must be used.

If for some reason you do not have the required libraries and your system support group will not update these ( In particular gd, as the older versions support GIF which is NOT supported in later versions) then install all three latest versions (z,gd,png) to a new directory and then add this new directory to your configure line for EMBOSS.

i.e.

   make clean
   rm config.cache
   ./configure --with-pngdriver=/home/joe/new

as I installed gd etc using --prefix=/home/joe/new in the configure of each.

If you have recently installed the libraries to your system then

   make clean
   make clean
   rm config.cache
   ./configure

By removing config.cache you are telling the system to check again for what is available as these are stored in that file.

make clean removes all the current objects and EMBOSS libraries as these will now need to include the png driver code.

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