Hi and thamks for the help. I followed all the steps as you said, but still I get the error: bash-2.04$ make depend.mk "depend.mk", line 0: make: 1254-027 Cannot open depend.mk. make: 1254-058 Fatal errors encountered -- cannot continue. 1) -MM is supported (gcc compiler on AIX) 2) deleted the RM depend.mk things (3) 3) autoconfig moved to autoconfig_hidden where did I do wrong? thanks :)