1) $patch_args can be used if all patches need special args other than "-Np0"
(set by default).
2) If the $PATCHESDIR/series file exist, it will specify how the patches
will be applied, in that order.
This is to specify common LDFLAGS settings for all packages, by default
it's set to '-Wl,--as-needed' to avoid linking extra libraries into
the binaries. This helped to find such cases.
- Remove buildvars_funcs.sh, its code has been moved into set_tmpl_common_vars().
- Move stripping code into its own file, and don't run it via fakeroot.
- Remove unnecesary reset_tmpl_vars() call in install_pkg().
- Misc changes.
- Prefix all messages with 'Package 'pkgname (version)': ..." to really
understand what's going on. Add more messages in some stages...
- Do not run pre/post_{configure,build,install} or do_{build,install} stages
if they were executed successfully in the past.
