Problem compiling Go-OpenGL with libGLEW.1.7.0

[go-gl-legacy]

Problem compiling Go-OpenGL with libGLEW.1.7.0

[pm2845]

I have the gl library compiled, but I get the same errors when I run the demos.

Building draw.go:

$ go build draw.go

github.com/banthar/gl

gl.go: In function ‘cgo_0ca662427903_Cfunc_glTransformFeedbackVaryings’:
gl.go:670:2: warning: passing argument 3 of ‘__glewTransformFeedbackVaryings’ from incompatible pointer type [enabled by default]
gl.go:670:2: note: expected ‘const GLchar *’ but argument is of type ‘GLchar *’
gl.go: In function ‘cgo_0ca662427903_Cfunc_glShaderSource’:
gl.go:2934:2: warning: passing argument 3 of ‘__glewShaderSource’ from incompatible pointer type [enabled by default]
gl.go:2934:2: note: expected ‘const GLchar *’ but argument is of type ‘GLchar *’

Running it renders a white window, then when I click on it, black. Nothing else happens or shows up. Escape works however. The sdlgears example is the only one that works fully for me.

[banthar]

gl.go: In function ‘_cgo_0ca662427903_Cfunc_glShaderSource’:
gl.go:241: 2: warning: passing argument 3 of ‘__glewShaderSource’ from incompatible pointer type
gl.go:241: 2: note: expected ‘const GLchar **’ but argument is of type ‘GLchar **’
gl.go: In function ‘_cgo_0ca662427903_Cfunc_glTransformFeedbackVaryings’:
gl.go:619: 2: warning: passing argument 3 of ‘__glewTransformFeedbackVaryings’ from incompatible pointer type
gl.go:619: 2: note: expected ‘const GLchar **’ but argument is of type ‘GLchar **’

Those are only warnings. As far as I know this won't cause any trouble.

Running it renders a white window, then when I click on it, black. Nothing else happens or shows up. Escape works however.

It's probably due to differences in OpenGL implementations. What's your OpenGL version? I'm using 3.3.0 NVIDIA 295.20 and it works fine.

The sdlgears example is the only one that works fully for me.

gomandel.go is currently broken. glfwgears.go requires glfw.

Edit: gomandel.go should work fine now.

[andrebq]

Just to inform, on my computer with a NVidia card the glfw samples works without any problem.

[pm2845]

I'm on a suckier platform right now, so I'm running 2.1 Mesa 7.11

[pwaller]

@pm2845: What OS (&version) are you/ were you on? Is this still an issue? Please update us either way.

[pwaller]

I've tested this on glew 1.{6,7,8,9}.0 without any obvious issues, so I'm closing this. If this problem persists, please re-open.