this code runs well on ubuntu gcc --version
gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
but build fail on mac
gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr
--with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 8.0.0 (clang-800.0.42.1)
Target: x86_64-apple-darwin15.5.0
Thread model: posix
any workaround ?
在 2017年4月26日星期三 UTC+8下午3:59:15，hui zhang写道：
>
> I simply the case as below , how to fix it?
>
> package main
>
> /*
> #include <stdlib.h>
> #include <stdio.h>
> typedef void GLvoid;
> GLvoid Foo() {
> printf("foo");
> }
> */
> import "C"
>
> func main() {
> C.Foo()
> }
>
> go build void.go
>
> cgo-gcc-prolog:34:10: error: field has incomplete type 'GLvoid' (aka
> 'void')
> 在 2017年4月26日星期三 UTC+8下午3:20:14，hui zhang写道：
>>
>> Check code below
>> go call c opengl/opengles code, typedef void GLvoid
>>
>> func GenVertexArrays(n int32, arrays *uint32) {
>> //C.glGenVertexArrays((C.GLsizei)(n),
>> (*C.GLuint)(unsafe.Pointer(arrays))) --> ok on darwin amd64
>> C.glGenVertexArraysOES((C.GLsizei)(n),
>> (*C.GLuint)(unsafe.Pointer(arrays))) --> fail on darwin arm
>> }
>>
>> Error Message
>>
>> cgo-gcc-prolog:36:10: error: field has incomplete type 'GLvoid' (aka
>> 'void')
>> For the GLvoid(aka void) can not be understood by cgo
>>
>> function decalred
>> void *glGenVertexArrays*(GLsizei n, GLuint *arrays); -->on darwin amd64
>> opengl
>>
>> GLvoid glGenVertexArraysOES(GLsizei n, GLuint *arrays) -->on darwin arm
>> opengles
>>
>>
>>
>>
>>
>>
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