I am doing my development work in Eclipse Mars with Goclipse plugin on Mac osx (10.10.5).

I need to cross compile for linux/amd64.

After set GOOS=linux and GOARCH=amd64 in "Preferences" -> "Go", the following error occurred:

************ Building Go project: xxx ************
with GOPATH: ......
Running: /usr/local/go/bin/go install -v -gcflags "-N -l" ./...
runtime
go install runtime: mkdir /usr/local/go/pkg/linux_amd64/: permission denied
^^^ Terminated, exit code: 1 ^^^
************ Build terminated. ************

go was going to create the wrong directory: /usr/local/go/pkg/linux_amd64/

Then I tried this command line manually:

export GOOS=linux

export GOARCH=amd64

/usr/local/go/bin/go install -x -v -gcflags "-N -l" ./...

WORK=/var/folders/2f/c4ny3kl920sc6dxdkpmw54vr0000gn/T/go-build250175624
runtime
mkdir -p $WORK/runtime/_obj/
mkdir -p $WORK/
cd /usr/local/go/src/runtime
/usr/local/go/pkg/tool/darwin_amd64/compile -o $WORK/runtime.a -trimpath $WORK -N -l -p runtime -+ -buildid 6d5354bd14cc24df376bca66e501e715c0c9847b -D _/usr/local/go/src/runtime -I $WORK -pack -asmhdr $WORK/runtime/_obj/go_asm.h ./alg.go ./arch1_amd64.go ./arch_amd64.go ./atomic_amd64x.go ./atomic_pointer.go ./cgo.go ./cgocall.go ./cgocallback.go ./chan.go ./compiler.go ./complex.go ./cpuprof.go ./cputicks.go ./debug.go ./defs_linux_amd64.go ./env_posix.go ./error.go ./extern.go ./hash64.go ./hashmap.go ./hashmap_fast.go ./heapdump.go ./iface.go ./lfstack.go ./lfstack_amd64.go ./lock_futex.go ./malloc.go ./mbarrier.go ./mbitmap.go ./mcache.go ./mcentral.go ./mem_linux.go ./mfinal.go ./mfixalloc.go ./mgc.go ./mgcmark.go ./mgcsweep.go ./mgcwork.go ./mheap.go ./mprof.go ./msize.go ./mstats.go ./netpoll.go ./netpoll_epoll.go ./os1_linux.go ./os2_linux.go ./os_linux.go ./panic.go ./panic1.go ./parfor.go ./print1.go ./print1_write.go ./proc.go ./proc1.go ./race0.go ./rdebug.go ./rune.go ./runtime.go ./runtime1.go ./runtime2.go ./select.go ./sema.go ./signal1_unix.go ./signal_amd64x.go ./signal_linux.go ./signal_linux_amd64.go ./signal_unix.go ./sigpanic_unix.go ./sigqueue.go ./slice.go ./softfloat64.go ./sqrt.go ./stack1.go ./stack2.go ./string.go ./string1.go ./stubs.go ./stubs2.go ./symtab.go ./sys_x86.go ./time.go ./trace.go ./traceback.go ./type.go ./typekind.go ./typekind1.go ./unaligned1.go ./vdso_linux_amd64.go ./wbfat.go ./zgoarch_amd64.go ./zgoos_linux.go ./zversion.go
/usr/local/go/pkg/tool/darwin_amd64/asm -o $WORK/runtime/_obj/asm.o -trimpath $WORK -I $WORK/runtime/_obj/ -I /usr/local/go/pkg/include -D GOOS_linux -D GOARCH_amd64 ./asm.s
/usr/local/go/pkg/tool/darwin_amd64/asm -o $WORK/runtime/_obj/asm_amd64.o -trimpath $WORK -I $WORK/runtime/_obj/ -I /usr/local/go/pkg/include -D GOOS_linux -D GOARCH_amd64 ./asm_amd64.s
/usr/local/go/pkg/tool/darwin_amd64/asm -o $WORK/runtime/_obj/duff_amd64.o -trimpath $WORK -I $WORK/runtime/_obj/ -I /usr/local/go/pkg/include -D GOOS_linux -D GOARCH_amd64 ./duff_amd64.s
/usr/local/go/pkg/tool/darwin_amd64/asm -o $WORK/runtime/_obj/memclr_amd64.o -trimpath $WORK -I $WORK/runtime/_obj/ -I /usr/local/go/pkg/include -D GOOS_linux -D GOARCH_amd64 ./memclr_amd64.s
/usr/local/go/pkg/tool/darwin_amd64/asm -o $WORK/runtime/_obj/memmove_amd64.o -trimpath $WORK -I $WORK/runtime/_obj/ -I /usr/local/go/pkg/include -D GOOS_linux -D GOARCH_amd64 ./memmove_amd64.s
/usr/local/go/pkg/tool/darwin_amd64/asm -o $WORK/runtime/_obj/rt0_linux_amd64.o -trimpath $WORK -I $WORK/runtime/_obj/ -I /usr/local/go/pkg/include -D GOOS_linux -D GOARCH_amd64 ./rt0_linux_amd64.s
/usr/local/go/pkg/tool/darwin_amd64/asm -o $WORK/runtime/_obj/sys_linux_amd64.o -trimpath $WORK -I $WORK/runtime/_obj/ -I /usr/local/go/pkg/include -D GOOS_linux -D GOARCH_amd64 ./sys_linux_amd64.s
pack r $WORK/runtime.a $WORK/runtime/_obj/asm.o $WORK/runtime/_obj/asm_amd64.o $WORK/runtime/_obj/duff_amd64.o $WORK/runtime/_obj/memclr_amd64.o $WORK/runtime/_obj/memmove_amd64.o $WORK/runtime/_obj/rt0_linux_amd64.o $WORK/runtime/_obj/sys_linux_amd64.o # internal
mkdir -p /usr/local/go/pkg/linux_amd64/
go install runtime: mkdir /usr/local/go/pkg/linux_amd64/: permission denied

This never happenned with Golang 1.4.2