Have you already checked for another declaration in sm_sdk.h?
btw which go version are you on? The error message doesn't seem like the
latest release.
Also can you provide a self contained buildable example and build commands?
On Friday, 13 April 2018 12:45:39 UTC+8, r...@soulmachines.com wrote:
>
>
> So I am try to get a simple CGO program going with a GO function that can
> get called back from a 'C' library
>
> the error I get is
>
> In file included from _cgo_export.c:3:
> cgo-gcc-export-header-prolog:42:14: error: conflicting types for
> '_go_Callback'
> src/smsdk/go_bindings.go:12:12: note: previous declaration is here
> _cgo_export.c:17:7: error: conflicting types for '_go_Callback'
> src/smsdk/go_bindings.go:12:12: note: previous declaration is here
>
> The code is simple looks like this
>
> package smsdk
>
> /*
> #cgo CFLAGS: -Damd64 -D SM_SDK_INTERNAL -I ${SRCDIR}/smsdk
> #cgo LDFLAGS: -L${SRCDIR} -lsm_sdk
> #include <stdbool.h>
> #include <stdlib.h>
> #include "sm_sdk.h"
>
> extern int _go_Callback(int speaking_state);
>
> static void Callback(Handle h, void * caller_context)
> {
> int val = CLibraryFunction(h);
> _go_Callback(val);
> }
> */
> import "C"
> import (
> "unsafe"
> "sync"
> )
>
> var _registeredCallback func(int)
>
> //export _go_SpeakingStateCallback
> func _go_SpeakingStateCallback(val int) int {
>
> if _registeredCallback != nil {
> _registeredCallback(val)
> return 1
> }
> return 0
> }
>
> Any suggestions?
>
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