MPI.Init failing with panic

[rossmeier]

panic: runtime error: cgo argument has Go pointer to Go pointer

goroutine 1 [running]:
panic(0x4f0780, 0xc82000a360)
/usr/lib/go/src/runtime/panic.go:481 +0x3e6
github.com/JohannWeging/go-mpi.Init(0x7a4560, 0x0)
.../src/github.com/JohannWeging/go-mpi/init.go:41 +0x2c1
main.main()
.../main.go:16 +0x111

Go 1.6.2 on 64 bit machine with openmpi
err := C.MPI_Init(&c_argc, (***C.char)(unsafe.Pointer(&c_argv)))
I'm not familliar with that api, but probably you want to have a **C.char and therefore leave the & before the c_argv

[kinnarr]

Go 1.6 changes the rules for go pointers in c code. You can disable the check with the environment variable GODEBUG=cgocheck=0

See https://golang.org/doc/go1.6#cgo for details