all: @echo To build "posix" there are two paths: @echo --- @echo 1. copy the posix folder into the reactos\modules folder @echo 2. link reactos/modules/posix to posix @echo UNIX @echo cd $${ROS_SRC_ROOT}/reactos/modules @echo ln -s $${ROS_SRC_ROOT}/posix posix @echo WINDOWS @echo cd %%ROS_SRC_ROOT%%\reactos\modules @echo junction posix %%ROS_SRC_ROOT%%\posix @echo --- @echo Eventually you can run "make depends" in the %%ROS_SRC_ROOT%%\reactos @echo directory to compile it.