Bug #20151: Can't build Ruby 3.1 on FreeBSD 14.0

• Status: Open
• Assignee: -
• Target version: -
• Backport: 3.0: DONTNEED, 3.1: REQUIRED, 3.2: DONTNEED, 3.3: DONTNEED

[hsbt (Hiroshi SHIBATA)]

I couldn't install Ruby 3.1.3 on FreeBSD 14.0.

compiling util.c
util.c:255:1: error: expected identifier or '('
ruby_qsort(void* base, const size_t nel, const size_t size, cmpfunc_t *cmp, void *d)
^
./include/ruby/util.h:124:21: note: expanded from macro 'ruby_qsort'
# define ruby_qsort qsort_r
                    ^
/usr/include/stdlib.h:356:5: note: expanded from macro 'qsort_r'
    __generic(arg5, int (*)(void *, const void *, const void *),        \
    ^
/usr/include/sys/cdefs.h:322:2: note: expanded from macro '__generic'
        _Generic(expr, t: yes, default: no)
        ^
1 error generated.
*** Error code 1

Stop.

Compiler version is here:

FreeBSD clang version 16.0.6 (https://github.com/llvm/llvm-project.git llvmorg-16.0.6-0-g7cbf1a259152)

I could install Ruby 3.2.2.

[shyouhei (Shyouhei Urabe)]

This has to be related: https://github.com/freebsd/freebsd-src/commit/af3c78886fd8d4ca5eebdbe581a459a6f6d29d6a

Because ruby_qsort is now a macro that ultimately expands to a _Generic, which is an expression, which cannot exist at the toplevel.

We already have a sane qsort_r implementation in that environment. We don't have to reinvent the wheel. I guess reaching at util.c:255 is already something wrong.

[taq (Eustaquio Rangel)]

shyouhei (Shyouhei Urabe) wrote in #note-1:

This has to be related: https://github.com/freebsd/freebsd-src/commit/af3c78886fd8d4ca5eebdbe581a459a6f6d29d6a

Because ruby_qsort is now a macro that ultimately expands to a _Generic, which is an expression, which cannot exist at the toplevel.

We already have a sane qsort_r implementation in that environment. We don't have to reinvent the wheel. I guess reaching at util.c:255 is already something wrong.

I beg your pardon, but based on this, we'll need at least 3.2.0 to run on FreeBSD?

[nobu (Nobuyoshi Nakada)]

• Related to Bug #18997: Don't define ruby_qsort when POSIX qsort_r is available added

[hsbt (Hiroshi SHIBATA)]

• Backport changed from 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN to 3.0: DONTNEED, 3.1: REQUIRED, 3.2: DONTNEED, 3.3: DONTNEED

@nobu (Nobuyoshi Nakada) found to fix this with https://github.com/ruby/ruby/commit/cfc564ac4049