[Swan-commit] Changes to ref refs/heads/main

[Andrew Cagney]

New commits:
commit ddd7758b57686ab0d6080098925d689c0f2d23e1
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Jul 29 16:40:11 2021 -0400

    jambuf: add jam_errno(), use POSIX strerror_r()
    
    Use in llog_errno().

commit c3fa1f56eab701f40b4394da6c758c664b4255da
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Jul 29 18:07:10 2021 -0400

    building: on GNU/Linux drop -Dlinux -D_GNU_SOURCE -DSCANDIR_HAS_CONST
    
    -Dlinux was for compiling on what must now be a very old ARM system
    
    -D_GNU_SOURCE was so that pipe2() was visible; but pipe2() is no
     longer used (althoug seccomp does add it)
    
     However, it did (outch!) enabled the non-portable version
     ofstrerror_r().
    
    -DSCANDIR_HAS_CONST wasn't even making it to USERLAND_CFLAGS

commit 2bdd9e102e71169180ec452bb6017acfd7e68ae0
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Jul 29 17:41:21 2021 -0400

    sec_label: use llog_errno() to log failure
    
    (was called log_error())
    
    The code written to use the legacy and GNU centric:
      char *strerror_r()
    instead of the POSIX compliant:
      int strerror_r()
    See strerror_r(3) on a GNU system.
    
    The down side is that llog_errno() is still using strerror(); next.