robotgo is incompatible with Go 1.21

[ChristoWolf]

• Robotgo version (or commit ref): v0.100.10

• Go version: 1.21 (and up)

• Gcc version: 13.2.0 included in WinLibs 11.0.1 (UCRT)

• Operating system and bit: Version 22H2 (OS Build 19045.3324), 64bit

• Resolution: not relevant

• Can you reproduce the bug at Examples:

  • Yes, as zlib and zconf is required by robotgo.

• Log gist (when compiling):

  .\go\1.21.4\x64\bin\go.exe build -v
  github.com/go-vgo/robotgo/clipboard
  github.com/lxn/win
  github.com/vcaesar/keycode
  runtime/cgo
  github.com/go-ole/go-ole
  github.com/go-ole/go-ole/oleutil
  github.com/StackExchange/wmi
  github.com/shirou/gopsutil/internal/common
  github.com/shirou/gopsutil/cpu
  github.com/shirou/gopsutil/mem
  github.com/shirou/gopsutil/net
  github.com/shirou/gopsutil/process
  github.com/vcaesar/gops
  image/color
  image
  golang.org/x/image/bmp
  hash/adler32
  compress/zlib
  golang.org/x/image/ccitt
  golang.org/x/image/tiff/lzw
  golang.org/x/image/tiff
  image/color/palette
  image/internal/imageutil
  image/draw
  image/gif
  image/jpeg
  image/png
  github.com/vcaesar/imgo
  github.com/vcaesar/tt
  github.com/robotn/gohook
  encoding/csv
  github.com/spf13/pflag
  github.com/go-vgo/robotgo
  # github.com/go-vgo/robotgo
  In file included from ./bitmap/../base/str_io_c.h:2,
               from ./bitmap/goBitmap.h:17,
               from C:\Users\<some user>\go\pkg\mod\github.com\go-vgo\robotgo@v0.100.10\bitmap.go:24:
  ./bitmap/../base/zlib_util_c.h:2:10: fatal error: zlib.h: No such file or directory
  2 | #include <zlib.h>
    |          ^~~~~~~~
  compilation terminated.

Description

Hi!

Go 1.21 and up requires newer GCC/MinGW toolchains see this and related issues, so installing MinGW-w65 8.1.0-release-win32-seh (which includes zlib and zconf) leads to compilation issues when building robotgo, as those dependencies are not included in newer MinGW versions.

[timendez]

Were you able ever to get past this error? I tried downloading zlib manually but still getting this error.

[ChristoWolf]

Hi @timendez!

I probably could have worked around it, but lost motivation at some point.

It was missing zlib.h and zconf.h, which I added from the zlib download. That worked out fine, but then it needed libs and d-files and I gave up and created this issue. I could have vendored more things until it would have worked, but I don't want to pollute my environments with all this stuff.

IMO it would be best to update the CGo stuff to require only std stuff, or - worst case - to add scripts/taskfiles/make-files which do the heavy lifting of the setup.

[vcaesar]

You should use this latest Released, not need zlib and libpng, and v0.100.10 is dropped now.

[vcaesar]

Add v0.100.10 just default compatibility mingw-w64, you should compile the "libpng" with yourself.

[timendez]

Thank you all! I got it working - and at some point I think VS Code automatically downloaded robotgo at a very old version which was casuing me problems.

[ChristoWolf]

Have tried v0.110.0, looks good. Thanks, @vcaesar!