This changes the default build cache directory from $(TOPDIR)/.go-build
to $(TMP_DIR)/go-build, so that the cache directory is ignored by git
and is removed by "make dirclean".
This does not move/remove a build cache directory in the previous
location; it will need to be removed manually.
Fixes https://github.com/openwrt/packages/issues/13675.
Signed-off-by: Jeffery To <jeffery.to@gmail.com>
This also adds a config option GOLANG_BUILD_CACHE_DIR to customize the
location of the build cache directory.
Signed-off-by: Jeffery To <jeffery.to@gmail.com>
This also adds a config option GOLANG_MOD_CACHE_WORLD_READABLE; if
enabled, chmod is run after a Go package build to make all
files/directories in the module cache world-readable.
Signed-off-by: Jeffery To <jeffery.to@gmail.com>
