When I tried to install GOCR on Ubuntu Linux 11.10 I got the following readout in the terminal
??????????:~$ cd gocr-0.48; make install
checking for gcc... gcc
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...
GOCR (or JOCR) is a free optical character recognition program, initially written by Jörg Schulenburg. It can be used to convert or scan image files (portable pixmap or PCX) into text files. Features. GOCR claims it can handle single-column sans-serif fonts of 20–60 pixels in height.