Found another installation recipe at https://gist.github.com/ajstarks/093581ac1fbc355f8402.
Although it was for Debian, the basic installation also worked on Angstrom.
Procedure:
1-install all timezone packages (needed for testing time functions):
opkg install tzdata-africa
opkg install tzdata-americas
opkg install tzdata-antarctica
opkg install tzdata-arctic
opkg install tzdata-asia
opkg install tzdata-atlantic
opkg install tzdata-australia
opkg install tzdata-europe
opkg install tzdata-misc
opkg install tzdata-pacific
opkg install tzdata-posix
2-get the golang version 1.1:
wget --quiet --output-document - http://go.googlecode.com/files/go1.1.src.tar.gz | tar zxvf -
(wget did not accept https:, thus I used http:)
3-go to go/src/
cd go/src
4-run all.bash
./all.bash
After compilation and testing you should get this endreport:
ALL TESTS PASSED