[ruby-core:108893] [Ruby master Bug#18808] Cannot compile ruby 3.1.2 on powerpc64le-linux without disabling the jit features

Issue #18808 has been updated by michals (Michal Such叩nek).

File rb_mjit_min_header-3.2.0.h added

```
/tmp/20220614-16633-i2edux.h:16633:1: error: multiple storage classes in declaration specifiers
 __attribute__ ((__visibility__("default"))) extern
 ^
compilation terminated due to -Wfatal-errors.
```
```
_Bool
rb_simple_iseq_p(const rb_iseq_t *iseq)
{
    return ((iseq)->body)->param.flags.has_opt == 0 &&
           ((iseq)->body)->param.flags.has_rest == 0 &&
           ((iseq)->body)->param.flags.has_post == 0 &&
           ((iseq)->body)->param.flags.has_kw == 0 &&
           ((iseq)->body)->param.flags.has_kwrest == 0 &&
           ((iseq)->body)->param.flags.accepts_no_kwarg == 0 &&
           ((iseq)->body)->param.flags.has_block == 0;
}static inline 
__attribute__ ((__visibility__("default"))) extern <<< line with error
_Bool
rb_iseq_only_optparam_p(const rb_iseq_t *iseq)
{
    return ((iseq)->body)->param.flags.has_opt == 1 &&
           ((iseq)->body)->param.flags.has_rest == 0 &&
           ((iseq)->body)->param.flags.has_post == 0 &&
           ((iseq)->body)->param.flags.has_kw == 0 &&
           ((iseq)->body)->param.flags.has_kwrest == 0 &&
           ((iseq)->body)->param.flags.accepts_no_kwarg == 0 &&
           ((iseq)->body)->param.flags.has_block == 0;
}static inline 
```

----------------------------------------
Bug #18808: Cannot compile ruby 3.1.2 on powerpc64le-linux without disabling the jit features
https://bugs.ruby-lang.org/issues/18808#change-97972

* Author: npn (John Davis)
* Status: Feedback
* Priority: Normal
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN
----------------------------------------
The system I am trying to compile on is a ppc64el system running RedHat 7 (3.10.0-1160.62.1.el7.ppc64le).  I can successfully compile on a x86_64 system running the same version RedHat 7 (3.10.0-1160.62.1.el7.x86_64)

When I configure with the following,  make completes fine,  but if I remove the `--disable-jit-support` it fails with the following error.


     ./configure --enable-shared --enable-load-relative  --disable-install-doc --prefix=$RUBY_PREFIX --exec-prefix=$RUBY_PREFIX/rh_ppc --disable-jit-support

    building rb_mjit_header.h
    rb_mjit_header.h updated
    building .ext/include/powerpc64le-linux/rb_mjit_min_header-3.1.2.h
    error in final header file:
    In file included from /tmp/20220525-12786-q2ndz2.c:1:0:
    /tmp/20220525-12786-vf3xbh.h:16627:1: error: multiple storage classes in declaration specifiers
     __attribute__ ((__visibility__("default"))) extern
     ^
    compilation terminated due to -Wfatal-errors.
    make: *** [.ext/include/powerpc64le-linux/rb_mjit_min_header-3.1.2.h] Error 1

---Files--------------------------------
config.log (1.45 MB)
rb_mjit_min_header-3.2.0.h (1000 KB)


-- 
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