No special actions have to be taken to configure GNU Pascal as a crosscompiler. Cross-compiler specific configuration is done only for GCC. Section 4.2 of "Using and Porting GNU CC" deals with cross-configurations in great detail. Once cross-binutils and a C library for the target machine are in place, GCC can be configured (from the GCC object directory). Suppose we are on a FreeBSD system and want a cross-compiler that produces code that runs on MS-DOS:
% ../gcc-2.7.2.1/configure --prefix=/usr --target=i386-go32
This creates all the necessary config files, links and Makefile in the GCC object directory. Now, proceed with the compilation and installation process like in the case of the native configuration described before. Do not remove files from the GCC object directory; the cross-compiler is used to compile the GNU Pascal runtime system (RTS) for the target system.