Building a dll with Go 1.7

In this article, we will explore the possibility of building a dll against Go v1.7 under Windows.

Question:

Is there a way to build a dll against Go v1.7 under Windows?

Background:

Attempts to build a dll using the classic approach:

go build -buildmode=shared main.go

Result in the following error:

-buildmode=shared not supported on windows/amd64

Answer:

As of Go 1.10, the -buildmode=c-shared flag is now supported on Windows.

Updated Command:

To compile a DLL in Go 1.10 or later, use the following command:

go build -o helloworld.dll -buildmode=c-shared

Compatibility:

Note that the headers generated by Go are compatible with GCC, which may limit the compatibility of your DLL with other programming environments.

Additional Information:

For more in-depth information, refer to the following resources:

• [Release Notes - Go 1.10](https://golang.org/doc/go1.10#compiler)
• [Google Group Discussion](https://groups.google.com/forum/#!topic/golang-dev/ckFZAZbnjzU)