RE: Building CC++ on Mac OS X

[Ian Gough]

Grabbed a new CVS snapshot this morning and tried to build after these
changes and I still get compilation failures:

g++ -DHAVE_CONFIG_H -I. -I. -I../include -I../src -DCCXX_EXPORT_LIBRARY
-I/usr/local/include -D_GNU_SOURCE -Wall -ansi -pedantic -I../include -c
thread.cpp -MT thread.lo -MD -MP -MF .deps/thread.TPlo  -fno-common
-DPIC -o .libs/thread.lo
cc1plus: warning: changing search order for system directory
"/usr/local/include"
cc1plus: warning:   as it has already been specified as a non-system
directory
thread.cpp: In constructor `ost::Thread::Thread(int, long unsigned
int)':
thread.cpp:536: `sched_getscheduler' undeclared (first use this
function)
thread.cpp:536: (Each undeclared identifier is reported only once for
each
   function it appears in.)
thread.cpp:554: `sched_getparam' undeclared (first use this function)
make[1]: *** [thread.lo] Error 1
make: *** [all-recursive] Error 1 

Checking if HAVE_SCHED_GETSCHEDULER is defined in one of the header
files shows that it is defined in config.h for some reason.

[/var/root/src/revgen/xGrid/ccxx 552] grep -r HAVE_SCHED *
acconfig.h:#undef HAVE_SCHED_GETSCHEDULER
acconfig.h:#ifdef HAVE_SCHED_H
config.log:#define HAVE_SCHED_H 1
config.log:#define HAVE_SCHED_GETSCHEDULER 1
config.status:${ac_dA}HAVE_SCHED_H${ac_dB}HAVE_SCHED_H${ac_dC}1${ac_dD}
config.status:${ac_dA}HAVE_SCHED_GETSCHEDULER${ac_dB}HAVE_SCHED_GETSCHED
ULER${ac_dC}1${ac_dD}
config.status:${ac_uA}HAVE_SCHED_H${ac_uB}HAVE_SCHED_H${ac_uC}1${ac_uD}
config.status:${ac_uA}HAVE_SCHED_GETSCHEDULER${ac_uB}HAVE_SCHED_GETSCHED
ULER${ac_uC}1${ac_uD}
configure:#define HAVE_SCHED_GETSCHEDULER 1
include/cc++/config.h:#define HAVE_SCHED_GETSCHEDULER 1
include/cc++/config.h:#define HAVE_SCHED_H 1
include/cc++/config.h:#ifdef HAVE_SCHED_H
include/cc++/config.tmp:#define HAVE_SCHED_GETSCHEDULER 1
include/cc++/config.tmp:#define HAVE_SCHED_H 1
include/cc++/config.tmp:#ifdef HAVE_SCHED_H
include/config.h:#define HAVE_SCHED_GETSCHEDULER 1
include/config.h:#define HAVE_SCHED_H 1
include/config.h:#ifdef HAVE_SCHED_H
include/config.h.in:#undef HAVE_SCHED_GETSCHEDULER
include/config.h.in:#undef HAVE_SCHED_H
include/config.h.in:#ifdef HAVE_SCHED_H
m4/ost_pthread.m4:              [AC_DEFINE(HAVE_SCHED_GETSCHEDULER)])
m4/ost_pthread.m4:dnl #undef HAVE_SCHED_GETSCHEDULER
m4/ost_pthread.m4:dnl #ifdef HAVE_SCHED_H
src/thread.cpp:#ifdef HAVE_SCHED_GETSCHEDULER
src/thread.cpp:#endif // ifdef HAVE_SCHED_GETSCHEDULER

But /usr/include/sched.h shows that there is no sched_getscheduler()
function.

#ifndef _SCHED_H_
#define _SCHED_H_

#include <pthread_impl.h>

/*
 * Scheduling paramters
 */
#ifndef __POSIX_LIB__
struct sched_param { int sched_priority;  char
opaque[__SCHED_PARAM_SIZE__]; };
#endif

extern int sched_yield(void);
extern int sched_get_priority_min(int);
extern int sched_get_priority_max(int);
#endif /* _SCHED_H_ */

I grepped for sched_getscheduler and turned up no hits, so I am not sure
why the autoconf system thinks that it exists.

I then defined __FreeBSD__ to get around this problem, but ran into
another compile problem.

g++ -DHAVE_CONFIG_H -I. -I. -I../include -D__FreeBSD__ -I../src
-DCCXX_EXPORT_LIBRARY -I/usr/local/include -D_GNU_SOURCE -Wall -ansi
-pedantic -I../include -c semaphore.cpp -MT semaphore.lo -MD -MP -MF
.deps/semaphore.TPlo  -fno-common -DPIC -o .libs/semaphore.lo
cc1plus: warning: changing search order for system directory
"/usr/local/include"
cc1plus: warning:   as it has already been specified as a non-system
directory
/usr/include/sys/sem.h: In destructor `virtual
ost::Semaphore::~Semaphore()':
/usr/include/sys/sem.h:242: too few arguments to function `int
ost::semctl(int,
   int, int, ost::semun)'
semaphore.cpp:100: at this point in file
/usr/include/sys/sem.h: In member function `int
ost::Semaphore::getValue()':
/usr/include/sys/sem.h:242: too few arguments to function `int
ost::semctl(int,
   int, int, ost::semun)'
semaphore.cpp:126: at this point in file
make: *** [semaphore.lo] Error 1

Mac OS X does not seem to have SYSV semaphores and an incomplete set of
POSIX semaphore functions. It does NOT have sem_init and sem_destroy,
but it does have sem_open and sem_close.

> -----Original Message-----
> From: Federico Montesino Pouzols 
> [mailto:address@hidden On Behalf Of Federico 
> Montesino Pouzols
> Sent: Wednesday, January 22, 2003 3:20 AM
> To: Ian Gough
> Cc: 'bug-commoncpp'
> Subject: Re: Building CC++ on Mac OS X
> 
> 
> 
>       Good, I have commited some modifications that should 
> fix this issue.
> 
> On Tue, Jan 21, 2003 at 09:47:57AM -0500, Ian Gough wrote:
> > >   Um, I have just looked at this and actually there is 
> already some 
> > > autoconf stuff. Could you confirm if, in the config.h of 
> cc++, the 
> > > symbol HAVE_SOCKLEN_T is undefined?
> > > 
> > 
> > It is commented out. From include/cc++/config.h
> > 
> > #define HAVE_INET_ATON 1
> > #define HAVE_INET_SOCKETS 1
> > #define HAVE_UNIX_SOCKETS 1
> > /* #undef HAVE_SOCKLEN_T */
> > /* #undef HAVE_SYS_LIBCSYS_H */
> > /* #undef HAVE_SYS_STREAM_H */
> > /* #undef HAVE_SYS_POLL_H */
> > /* #undef HAVE_POLL_H */
> > 
>