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Code Issues Releases Wiki Activity

C tools: rename __unused macro to unused

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Bug: https://bugzilla.novell.com/show_bug.cgi?id=895495

We define the __unused macro as a shortcut for __attribute__((unused))
to quiet compiler warnings for functions where an argument is unused,
for whatever reason. However, on 64 bit architectures, older glibc's
bits/stat.h header defines an array variable with the name __unused
that collides with our macro and causes the parser to fail to build,
because the resulting macro expansion generates invalid C code.

This commit fixes the issue by removing the __unused macro where it's
not needed (mod_apparmor) and renaming it to 'unused' elsewhere. It also
in some instances reorders the arguments so that the unused macro
appears last consistently.

Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Seth Arnold <seth.arnold@canonical.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Tyler Hicks <tyhicks@canonical.com>
This commit is contained in:
Steve Beattie
2014-10-02 12:58:54 -07:00
parent ce70c84f5c
commit a44b6ce0a2
14 changed files with 22 additions and 25 deletions
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4
parser/parser.h
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@@ -183,8 +183,8 @@ extern int preprocess_only;
#define MIN_PORT 0
#define MAX_PORT 65535
#ifndef __unused
#define __unused __attribute__ ((unused))
#ifndef unused
#define unused __attribute__ ((unused))
#endif