On Feb 8 13:24, Yaakov Selkowitz wrote: > On 2016-02-08 08:10, Corinna Vinschen wrote: > >Alternatively we could allow to use the Solaris ACL functions even if > >only including sys/acl.h, given some macro: > > > > sys/acl.h: > > > > #ifdef __USE_OLD_SOLARIS_ACL_FUNCTIONS > > # include <cygwin/acl.h> > > #else > > [...POSIX definitions...] > > #endif > > Do the functions or typedefs conflict in any way?
No, they don't. However, I encountered a problem when exposing the
Solaris API at the same time as the POSIX API via sys/acl.h. Vim's
autoconf test failed to recognize support for the POSIX API. Try
this entirely harmless (from the POSIX POV) piece of code:
#include <sys/types.h>
#include <sys/acl.h>
acl_t acl;
int main ()
{
acl = acl_get_file("foo", ACL_TYPE_ACCESS);
return 0;
}
Works fine, but now try this with an additional
#include <cygwin.acl.h>
You'll get an error message:
$ gcc -c acl.c
acl.c:5:7: error: ‘acl’ redeclared as different kind of symbol
acl_t acl;
^
In file included from acl.c:2:0:
/usr/include/cygwin/acl.h:76:13: note: previous declaration of ‘acl’ was here
extern int acl (const char *__path, int __cmd, int __nentries,
^
The existence of the functions acl and facl is entirely unexpected in
the POSIX context.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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