[gcc r14-1260] ada: Use computed value from os_constants to define sigset_t

[Marc Poulhi?s <dkm@gcc.gnu.org>]

https://gcc.gnu.org/g:d874abd8b7f4574d5a3ad8a918abbf7608250dbf

commit r14-1260-gd874abd8b7f4574d5a3ad8a918abbf7608250dbf
Author: Doug Rupp <rupp@adacore.com>
Date:   Wed Mar 8 22:24:18 2023 -0800

    ada: Use computed value from os_constants to define sigset_t
    
    Remove hard coded definition and conform to standard usage of using
    computed os_constants for opaque type declarations.
    
    gcc/ada/
    
            * libgnarl/s-osinte__qnx.ads (sigset_t): Modify
            declaration to use system.os_constants computed
            value. Align it.

Diff:
---
 gcc/ada/libgnarl/s-osinte__qnx.ads | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/ada/libgnarl/s-osinte__qnx.ads b/gcc/ada/libgnarl/s-osinte__qnx.ads
index 3aa727f158f..3282abe8869 100644
--- a/gcc/ada/libgnarl/s-osinte__qnx.ads
+++ b/gcc/ada/libgnarl/s-osinte__qnx.ads
@@ -562,8 +562,10 @@ package System.OS_Interface is
 
 private
 
-   type sigset_t is array (1 .. 2) of Interfaces.Unsigned_32;
+   type sigset_t is
+     array (0 .. OS_Constants.SIZEOF_sigset - 1) of unsigned_char;
    pragma Convention (C, sigset_t);
+   for sigset_t'Alignment use Interfaces.C.unsigned_long'Alignment;
 
    type pid_t is new int;