GNU bug report logs - #43821
Vlang REPL broken

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: bug-guix <at> gnu.org, Ryan Prior <rprior <at> protonmail.com>
Subject: Vlang REPL broken
Date: Tue, 06 Oct 2020 01:30:50 +0200

[Message part 1 (text/plain, inline)]

Guix,

Commit 84fa2ced47e16de66674ca169845a6f08cb5ef6c broke the vlang 
REPL (‘v repl’ or simply ‘v’ without arguments) in a new way:

[Message part 2 (text/plain, inline)]

~ λ v
For usage information, quit V REPL and run `v help`
cannot compile 
`/gnu/store/zf80y1bfdvpc6s3lrs33vlc6d1d745la-vlang-0.1.29/bin/cmd/tools/vrepl.v`: 
builder error: folder 
`/gnu/store/zf80y1bfdvpc6s3lrs33vlc6d1d745la-vlang-0.1.29/bin/cmd/tools` 
is not writable

[Message part 3 (text/plain, inline)]

The compiler works fine.

The REPL didn't work before so this isn't a regression per se, but 
it still needs to be fixed.

[Message part 4 (text/plain, inline)]

λ guix install vlang
The following package will be downgraded:
  vlang 0.1.29 → 0.1.27
[...]
~ λ v
For usage information, quit V REPL using `exit` and use `v help`
cannot compile 
‘/gnu/store/1f5nzwf1jhn5iikhfpxjdxcbmj24zdf5-vlang-0.1.27/bin/cmd/tools/vrepl.v: 
/gnu/store/1f5nzwf1jhn5iikhfpxjdxcbmj24zdf5-vlang-0.1.27/bin/cmd/tools/vrepl.v:64:1: 
warning: function `repl_help` in module main cannot be declared 
public 
  62 | }
  63 | 
  64 | pub fn repl_help() {
     | ~~~~~~~~~~~~~~~~~~
  65 |     println(util.full_v_version())
  66 |     println('
/gnu/store/1f5nzwf1jhn5iikhfpxjdxcbmj24zdf5-vlang-0.1.27/bin/cmd/tools/vrepl.v:73:1: 
warning: function `run_repl` in module main cannot be declared 
public 
  71 | }
  72 | 
  73 | pub fn run_repl(workdir string, vrepl_prefix string) 
  []string {
     | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  74 |     println(util.full_v_version())
  75 |     println('Use Ctrl-C or `exit` to exit')
/gnu/store/1f5nzwf1jhn5iikhfpxjdxcbmj24zdf5-vlang-0.1.27/bin/cmd/tools/vrepl.v:240:1: 
warning: function `rerror` in module main cannot be declared 
public 
 238 | }
 239 | 
 240 | pub fn rerror(s string) {
     | ~~~~~~~~~~~~~~~~~~~~~~~
 241 |     println('V repl error: $s')
 242 |     os.flush()
builder error: C compiler error, while attempting to run: 
-----------------------------------------------------------
cc  -std=gnu11 -Wall -Wextra -Wno-unused-variable 
-Wno-unused-parameter -Wno-unused-result -Wno-unused-function 
-Wno-missing-braces -Wno-unused-label 
-Werror=implicit-function-declaration -o 
"/gnu/store/1f5nzwf1jhn5iikhfpxjdxcbmj24zdf5-vlang-0.1.27/bin/cmd/tools/vrepl" 
"/home/nckx/.cache/v/vrepl.tmp.c"   -lm -lpthread -ldl
-----------------------------------------------------------
Probably your C compiler is missing. 
Please reinstall it, or make it available in your PATH.

On Debian/Ubuntu, run `sudo apt install build-essential`‘

[Message part 5 (text/plain, inline)]

Kind regards,

T G-R

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