CLEAN_BUILD=YES (default) - clean all, then build all
CLEAN_BUILD=NO - clean only multi-input targets (CC, OP), usually safe
CLEAN_BUILD=NEVER - no clean at all, invalid multi-input targes, but fast
In preparation for release build the Windows installer source is moved
out of ground/gcs source tree into release directory. It is also disabled
in the qmake source file and removed from top level Makefile.
Since msysGit lacks the install command, simple cp -f replacement
is provided. Don't forget to copy it into the msysGit bin subdirectory.
Introduced CLEAN_BUILD=NO make option to test packaging w/o cleaning.
Recommended for test builds only, not for production run.
make -j works great after PyMite dependency fix by commit
0005729056
So comment is updated as well.
