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go/misc/cgo/test/duplicate_symbol.go
Julian Phillips 01dd57b312 cgo: omit duplicate symbols in writeDefs
When the C API being used includes multiple names for the same
underlying symbol (e.g. multiple #define's for the same variable), then
cgo will generate the same placeholder variables for each name.  This
then prevents the code from compiling due to multiple declarations of
the same variable - so change cgo to only create one instance of the
variable for the underlying symbol.

R=rsc
CC=golang-dev
https://golang.org/cl/4826055
2011-08-16 14:56:23 -04:00

22 lines
430 B
Go

// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file contains test cases for cgo.
package cgotest
/*
int base_symbol = 0;
#define alias_one base_symbol
#define alias_two base_symbol
*/
import "C"
import "fmt"
func duplicateSymbols() {
fmt.Printf("%v %v %v\n", C.base_symbol, C.alias_one, C.alias_two)
}