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Add posix_spawn support

1

This fixes #15355 This is not yet including the optimization for single-arg system() that doesn't contain metacharacter. I should probably add that before undrafting this. It also doesn't include Configure...

Leont

POSIX::is*** floating-point testing functions should not return NV

10

C99 floating-point comparison (`isgreater`, `isunordered`, ...), classification (`isinf`, `isfinite`, ...) and `signbit` macros are semantically boolean functions returning `int`, but their corresponding XSUBs in POSIX.xs used to return NV. This...

t-a-k

Version tags for `use builtin :ver`

4

Supports the same syntax/semantics as `use feature`, in that * `:major.minor` accepted * `:major.minor.patch` accepted but patch number is ignored - anything goes Not (yet) integrated into the main `use...

leonerd

prevent complaining about sub attribute order on a my/our/state

7

fixes #19245 It might be better to clear seen_sig after a sub is parsed, I'm not sure.

tonycoz

Change INSTALL to note that "changes in the Perl language" are usually minor

6

The paragraph starts: > On a related issue, old modules may possibly be affected by the changes in the Perl language in the current release. Previously it made no indication...

nwc10

Simplize copyright claim

15

why we don't make it simple and clean

Yahasana

Add exit code test (GH #19020):

3

This tests that when we kill a process through a shell, we get the correct exit code and signal. Unfortunately, this fails on some versions of Ubuntu and `dash`, which...

xsawyerx

retain the last file handle even if it's an IO reference

4

It's always been possible to extract a reference to the IO SV from a glob, and use that for I/O, but such use would set PL_last_in_gv to a temporary GV...

tonycoz

Encode the misc SV_* flags using bitshifts rather than decimal integers

5

The bitwise pattern, and the gap at (1

leonerd

Provide richer explanation of the `unicode_strings` difference.

5

The output here kinda exemplifies bug #19063.

FGasper