A makefile for compiling the library using GNU C for MS-DOS is present (not listed, but it is the same as Makefile.GCC). This makefile can be executed using GNU make (which can be found in the GNU C distribution). The makefile is almost identical to the Unix makefile, except for some Unix utilities which are not available under dos. Also the same Makefile.INC is used. Note that the compilation of the library requires the use of the switches SPRLIB and GCC. Some specific Sun libraries are, of course, also not available. The variable $ARCH could be set to DOS. Furthermore, one should be aware of the fact that GCC generates (by default) floating point instructions, which means that a standard installation of GCC requires an FPU (an emulation library for the FPU is also available in the DJGPP distribution).