I have installed plotutils/libplot under win2k. while linking the program with: 'gcc -lplot -lm program.o -o program' I get all calls to libplot as 'undefined reference'. I am using: mingw-runtime-3.9 gcc-3.4.2 and plotutils-2.4.1-4 with GnuWin32 What could be the problem or what could de missing? Any hint is appreciated. Walter