Syntax error! The symbol `__attribute__' does not fit here. for time.h on OSX about c2hs HOT 3 OPEN

Similar: https://gitlab.haskell.org/haskell/ghcup-hs/-/jobs/389030#L1196

Configuring libarchive-2.2.5.0...
Preprocessing library for libarchive-2.2.5.0..
c2hs: C header contains errors:
/usr/include/bits/alltypes.h:71: (column 18) [ERROR]  >>> Syntax error !
  The symbol `_Alignas' does not fit here.

from c2hs.

This is an issue with language-c not being able to parse those constructs. I've been getting around them with something like this in my .cabal file:

  if os(darwin)
    cc-options: -D_Alignas= -D__attribute__=

from c2hs.

This is an issue with language-c not being able to parse those constructs. I've been getting around them with something like this in my .cabal file:

  if os(darwin)
    cc-options: -D_Alignas= -D__attribute__=

Doesn't work here:

• https://gitlab.haskell.org/haskell/ghcup-hs/-/jobs/771092#L1331
• https://gitlab.haskell.org/haskell/ghcup-hs/-/commit/490207c6ac5d5aa2823483a6eba480d0ce2e459f#375f33130d9a0929983d444c20caa59f7929d709_30_21

from c2hs.