[ruby-core:105939] [Ruby master Bug#17106] Build ruby 2.6.6 from git source

Issue #17106 has been updated by jaruga (Jun Aruga).


I still see this build error on the latest ruby_2_6 branch (commit: `95ba9053e20ad8d113af37b3f1f4cbfff1f6a8f1`).
I needed to apply the commit `47720e2255f34ecad49763c66a7ea02a55a3f60a` to pass the `make` on Fedora 34.

```
$ bison --version
bison (GNU Bison) 3.7.4
Written by Robert Corbett and Richard Stallman.

Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
```


----------------------------------------
Bug #17106: Build ruby 2.6.6 from git source
https://bugs.ruby-lang.org/issues/17106#change-94480

* Author: yegorov (Artem Yegorov)
* Status: Closed
* Priority: Normal
* ruby -v: 2.6.6
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
Hello!
I tried to build ruby 2.6.6 from git source, but get an error.

My Dockerfile:
```
FROM archlinux:20200705

RUN pacman -Sy vim curl git ruby --noconfirm && \
    pacman -S --needed base-devel libffi libyaml openssl zlib --noconfirm

CMD /bin/bash
```

Build and run docker:
```
docker build -t archlinux_ruby .
docker run --rm -it archlinux_ruby /bin/bash
```

My steps for reproducing error (in docker bash):
```
mkdir gitruby && cd gitruby
git clone https://github.com/ruby/ruby.git -b v2_6_6 --depth 1
cd ruby
autoconf
./configure
make
```

Error
```
compiling parse.c                                                                                               [7/2146]
parse.c: In function ‘ruby_yyparse’:                                                                                    
parse.c:10667:51: error: macro "yydestruct" passed 5 arguments, but takes just 3                                        
10667 |           if (yychar == END_OF_INPUT)                                                                           
      |                                                   ^                                                             
parse.c:5299: note: macro "yydestruct" defined here                                                                     
 5299 | #define yydestruct(m, t, v) ruby_parser_yydestruct(m, t, v, p)                                                  
      |                                                                                                                 
parse.c:10666:11: error: ‘yydestruct’ undeclared (first use in this function)
10666 |           /* Return failure if at end of input.  */
      |           ^~~~~~~~~~  
parse.c:10666:11: note: each undeclared identifier is reported only once for each function it appears in
parse.c:10722:65: error: macro "yydestruct" passed 5 arguments, but takes just 3
10722 |       /* Pop the current state because it cannot handle the error token.  */
      |                                                                 ^                                               
parse.c:5299: note: macro "yydestruct" defined here
 5299 | #define yydestruct(m, t, v) ruby_parser_yydestruct(m, t, v, p)
      | 
parse.c:10780:47: error: macro "yydestruct" passed 5 arguments, but takes just 3
10780 |   if (yychar != YYEMPTY)
      |                                               ^     
parse.c:5299: note: macro "yydestruct" defined here
 5299 | #define yydestruct(m, t, v) ruby_parser_yydestruct(m, t, v, p)
      | 
parse.c:10789:65: error: macro "yydestruct" passed 5 arguments, but takes just 3
10789 |      this YYABORT or YYACCEPT.  */
      |                                                                 ^                                               
parse.c:5299: note: macro "yydestruct" defined here
 5299 | #define yydestruct(m, t, v) ruby_parser_yydestruct(m, t, v, p)
      | 
At top level:
parse.c:5297:1: warning: ‘ruby_parser_yydestruct’ defined but not used [-Wunused-function]
 5297 | ruby_parser_yydestruct (const char *yymsg,
      | ^~~~~~~~~~~~~~~~~~~~~~
cc1: note: unrecognized command-line option ‘-Wno-self-assign’ may have been intended to silence earlier diagnostics
cc1: note: unrecognized command-line option ‘-Wno-parentheses-equality’ may have been intended to silence earlier diagno
stics
cc1: note: unrecognized command-line option ‘-Wno-constant-logical-operand’ may have been intended to silence earlier di
agnostics
make: *** [Makefile:419: parse.o] Error 1
```

What do the comments mean that appeared while building ruby?
Building from tarball source (https://www.ruby-lang.org/en/downloads/) was successful.

What am I doing wrong?



-- 
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