Compiling 4GL on Linux SUSE 6.4

Hi all, I have some problems making an executable on Linux SUSE 6.4 with INFORMIX 4GL. I've done the following steps: 1) Compiling modules. c4gl -c mod1.4gl --> that gives me a mod1.o file c4gl -c mod2.4gl --> that gives me a mod2.o file 2) Making a library lib1.a ar rv lib1.a mod1.o --> that creates a library lib1.a 3) Making of a executable mod1.4ge c4gl -o mod1.4ge mod2.o lib1.a The system gives problems in each function that calls functions of the library. The message is mod2.o(text+0x883): undefined reference to `mg_error`. mg_error is a function of library lib1.a All this I can do without any problems on SCO, AIX, .... Anybody an idea? Thanks, Danny