by jirkadanek7:

What steps will reproduce the problem?
If possible, include a link to a program on play.golang.org.
1. cp -R /usr/local/go/misc/swig/callback ./
2. cd callback
3. run go build -n

What do you see?
[jirka@localhost callback]$ go build -n

#
# _/samsung/jirka/callback
#

mkdir -p $WORK/_/samsung/jirka/callback/_obj/
mkdir -p $WORK/_/samsung/jirka/
go build _/samsung/jirka/callback: open $WORK/swig_intsize.go: no such file or directory

Which compiler are you using (5g, 6g, 8g, gccgo)?
6g

Which operating system are you using?
Gnu/Linux (Fedora 19)

Which version are you using?  (run 'go version')
go version go1.1.1 linux/amd64

Please provide any additional information below.

just after completing the three steps above, I can do

4. go build

which finishes without any error. I am unable actually to run what then go build
creates, but that is a different issue (maybe #5739 , actually).