golang-ui

Sandbox for Golang UI

Enabling CGO on Windows

1. Install MSYS2 64 bit (msys2-x86_64)
2. Update (See here)

• pacman -Syu
• pacman -Syuu
• pacman -Su
• many times

3. Install gcc (See here)

• pacman -S mingw-w64-x86_64-gcc
• pacman -S mingw-w64-i686-gcc for 32 bit version

4. Add to PATH

• C:\msys64\mingw64\bin
• C:\msys64\usr\bin

5. ...
6. PROFIT!

package main

/*
#include <stdio.h>
#include <stdlib.h>

void myprint(char* s) {
	printf("%s\n", s);
}
*/
import "C"

import "unsafe"

func main() {
	cs := C.CString("Hello from stdio\n")
	C.myprint(cs)
	C.free(unsafe.Pointer(cs))
}

Caveat

Cross-compiling (eg. building 32-bit .exe on 64-bit Windows with CGO) is not working.