Fyne: compilation terminated / ubuntu 20.04

[mhf-ir]

Describe the bug:

Dependecy problem on Ubuntu 20.04

I install sudo apt install libgl1-mesa-dev but

To Reproduce:

Steps to reproduce the behaviour:

1. Go to Ubuntu 20.04
2. Try run hello work example

Example code:

// cat main.go 
package main

import (
    "fyne.io/fyne/widget"
    "fyne.io/fyne/app"
)

func main() {
    app := app.New()

    w := app.NewWindow("Hello")
    w.SetContent(widget.NewVBox(
        widget.NewLabel("Hello Fyne!"),
        widget.NewButton("Quit", func() {
            app.Quit()
        }),
    ))

    w.ShowAndRun()
}

# fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw
In file included from ./glfw/src/internal.h:169,
                 from ./glfw/src/context.c:28,
                 from /home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/c_glfw.go:4:
./glfw/src/x11_platform.h:39:10: fatal error: X11/Xcursor/Xcursor.h: No such file or directory
   39 | #include <X11/Xcursor/Xcursor.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

Device (please complete the following information):

• OS: Linux Ubuntu
• Version: 20.04
• Go version: go version go1.14.2 linux/amd64
• Fyne version: 0b492d882b0227fd80c10dcf2237942ae5aadaa6

[Jacalz]

It is not enough to just install sudo apt install libgl1-mesa-dev. The error you are getting tells you that your system is missing headers for xorg. The official developer docs states that you need to also install xorg-dev. Hopefully that should sort things out for you :)

[mhf-ir]

Thanks for quick response. It's worked

but another error/warning appear:

# fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw
In file included from /home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/c_glfw_linbsd.go:24:
/home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/glfw/src/linux_joystick.c: In function ‘_glfwInitJoysticksLinux’:
/home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/glfw/src/linux_joystick.c:224:42: warning: ‘%s’ directive output may be truncated writing up to 255 bytes into a region of size 9 [-Wformat-truncation=]
  224 |             snprintf(path, sizeof(path), "%s/%s", dirname, entry->d_name);
      |                                          ^~~~~~~
In file included from /usr/include/stdio.h:867,
                 from /usr/include/X11/Xcursor/Xcursor.h:26,
                 from /home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/glfw/src/x11_platform.h:39,
                 from /home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/glfw/src/internal.h:169,
                 from /home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/glfw/src/x11_init.c:28,
                 from /home/sweb/go/src/fyne.io/fyne/vendor/github.com/go-gl/glfw/v3.2/glfw/c_glfw_linbsd.go:19:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:67:10: note: ‘__builtin___snprintf_chk’ output between 12 and 267 bytes into a destination of size 20
   67 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   68 |        __bos (__s), __fmt, __va_arg_pack ());
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
^C

[andydotxyz]

These are warnings that can be ignored. Our next release, expected in around 2 weeks, removes them

[hoshsadiq]

I've got the same issue as OP where I get compilation terminated. Didn't wanna open a new issue as this one is new enough, happy to do so if you'd like though. Anyway, this is the terminal output:

$ sudo apt-get install golang gcc libgl1-mesa-dev xorg-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
golang is already the newest version (2:1.14-1longsleep1+bionic).
gcc is already the newest version (4:7.4.0-1ubuntu2.3).
libgl1-mesa-dev is already the newest version (19.2.8-0ubuntu0~18.04.3).
xorg-dev is already the newest version (1:7.7+19ubuntu7.1).
0 to upgrade, 0 to newly install, 0 to remove and 74 not to upgrade.

$ cat gui.go
package main

import (
        "fyne.io/fyne/app"
        "fyne.io/fyne/widget"
)

func main() {
        a := app.New()

        w := a.NewWindow("Hello")
        w.SetContent(widget.NewVBox(
                widget.NewLabel("Hello Fyne!"),
                widget.NewButton("Quit", func() {
                        a.Quit()
                }),
        ))

        w.ShowAndRun()
}

$ go run ./gui.go
# github.com/go-gl/glfw/v3.2/glfw
../../vendor/github.com/go-gl/glfw/v3.2/glfw/c_glfw.go:4:10: fatal error: glfw/src/context.c: No such file or directory
 #include "glfw/src/context.c"
          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.

There it hangs for a little bit, then exits with a non-zero error code.

[andydotxyz]

It looks like you have an incomplete vendor directory @hoshsadiq. If you deviously used “go vendor” the please try “fyne vendor” which should fix the issue

[hoshsadiq]

Aah! Thank you! Did not realise that.