Hi David. Thanks for your reply, but it seems that "make clean" doesn't work properly. Please look: artemiev at artemiev-desktop:~/job/gmsh-2.5.0-source/build$ make clean artemiev at artemiev-desktop:~/job/gmsh-2.5.0-source/build$ which gmsh /usr/local/bin/gmsh I want to remove all gmsh executables and libraries from computer. How can I do that? Thanks Mikhail Artemiev