by philbinj:

I have a very simple swig project folder consisting of one .h file, one .cc file, one
.swigcxx file, and one go file. I'm running go 1.3.1 on Mac.

Running:
$ go build hippo/native
gives me "can't compile multiple files"

Drilling down further gives me:
===
WORK=/var/folders/vt/kwy8ctbx76bfgnm26ys88yrh0000gn/T/go-build622156101
mkdir -p $WORK/hippo/native/_obj/
mkdir -p $WORK/hippo/native/_obj/exe/
cd /Users/jphilbin/code/hippo/src/hippo/native
clang++ -I . -fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments
-fmessage-length=0 -fno-common -g -O2 -o $WORK/hippo/native/_obj/tensor.cc.o -c
./tensor.cc
swig -version
cd $WORK
/usr/local/go/pkg/tool/darwin_amd64/6g -o ./hippo/native/_obj/_go_.6 -trimpath . -p
command-line-arguments -complete -D _$WORK ./swig_intsize.go
cd /Users/jphilbin/code/hippo/src/hippo/native
swig -go -intgosize 32 -module native -o $WORK/hippo/native/_obj/native_wrap.cxx -outdir
$WORK/hippo/native/_obj/ -c++ native.swigcxx
/usr/local/go/pkg/tool/darwin_amd64/6c -F -V -w -trimpath $WORK -I
$WORK/hippo/native/_obj/ -I /usr/local/go/pkg/darwin_amd64 -o
$WORK/hippo/native/_obj/native_gc.6 -D GOOS_darwin -D GOARCH_amd64
$WORK/hippo/native/_obj/native_gc.c
# hippo/native
can't compile multiple files
===

I'm pretty sure that the argument to -trimpath is part of the problem as when I manually
run 6c without that flag it compiles fine. Can attach the source files if needed.