misc/158418: /usr/include librarys broken by unnecessary extra
larson at w6yx.stanford.edu
Wed Jun 29 07:10:06 UTC 2011
>Synopsis: /usr/include librarys broken by unnecessary extra macro indirection.
>Arrival-Date: Wed Jun 29 07:10:05 UTC 2011
>Originator: Alan Larson
>Release: FreeBSD 8.2-STABLE i386
not relevant to this report
System: FreeBSD w6yx.stanford.edu 8.2-STABLE FreeBSD 8.2-STABLE #0: Tue May 3 15:19:30 PDT 2011 techie at w.wbopera.holt:/w0/obj/usr/src/sys/GENERIC i386
The macro __aligned(x) is used several places in files in /usr/include, but is only
defined if using a sufficiently new version of GCC, or an Intel compiler.
The definitions are inside an #if __GNUC_PREREQ__(2, 7) and #if defined(__INTEL_COMPILER)
This breaks things when compiled with PCC or TCC. ( http://pcc.ludd.ltu.se/jira/browse/PCC-18 )
Attempt to compile something that has an #include <signal.h> with TCC (or presumably, PCC).
Inspection of the code indicates that the same problem is true for __packed .
Other values are also redefined in those same conditionals, and they probably have
the same problems.
Two likely fixes come to mind:
1. Don't use these macro shortcuts, use the __attribute__ form directly.
Many of the files in /usr/include do this, so fixing the remaining ones
would simplify things. It should only take a few minutes to fix them.
There are still lots of places using the __attribute__ form, so this
is a proven safe and reasonable solution.
2. If you absolutely must include macros for this, define the macro all the
But seriously, you should take solution #1.
More information about the freebsd-bugs