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           Summary: Mac OS X porti
           Product: RTT
           Version: rtt-trunk
          Platform: All
        OS/Version: Other
            Status: NEW
          Severity: project
          Priority: P3
         Component: Operating System Abstraction - Portability
        AssignedTo: orocos-dev at lists [dot] mech [dot] kuleuven [dot] be
        ReportedBy: klaas.gadeyne at fmtc [dot] be
                CC: orocos-dev at lists [dot] mech [dot] kuleuven [dot] be
   Estimated Hours: 0.0

Created an attachment (id=265)

 --> (https://www.fmtc.be/bugzilla/orocos/attachment.cgi?id=265)

mac os x port, less than alpha version

Since the question has popped up a couple of times, I will open this one to
collect the efforts regarding a Mac OS X port of the RTT.

Mac OS X uses the posix API, however it implements almost nothing of the posix
real-time extensions (1003.1b). Note that the use of these "real-time"
extensions doesn't mean the Mac OS X port will warrant real-time behaviour of
the RTT (not at all!).

Attached is a first "less-than-alpha" patch, which modifies the gnulinux code
in order to compile on mac os x.
That said, it only compiles (you have been warned).

Some notes about the patch.

- Idealiter, I think this project would result in a posix port of the RTT, with

some ifdef statements for non-portable (e.g. as currently in the gnulinux port)
or non-implemented (as will be necessary for mac os x).

- I've tested this on a Tiger (10.4) system (a white macbook, intel cpu) using

the fink system to install dependencies (boost/cppunit).

• I don't know what the state of Leopard is regarding the posix extensions.
• Unfortunately, the cppunit port that comes with fink www.finkproject.org is

still the deprecated 1.10 version, resulting in compiler errors with the gcc on
my macbook (virtual functions, but non-virtual destructors). This is where I
gave up :-) It seems like the macports project www.darwinports.com has a more
recent version though.

- The patch solves some issues (most of them 1003.1b stuff)
   * No pthread_recursive_np defined in mac os x 10.4 (they omit the np prefix)
   * No clock_gettime defined in mac os x 10.4 (solved by using gettimeofday)
   * No sem_timedwait defined -> THE IMPLEMENTATION JUST MAKES IT COMPILE, AND

WON'T WORK.

- It adds some cmake logic to use the fink include path in /sw.  Won't be

necessary with macport I guess.

- For now, I didn't even review the patch, I just checked it compiled, ran into

the cppunit error, svn diffed it, and uploaded it here. So although I guess it
must be possible to get it working in a day or so, this is not for the
faint-hearted people amongst you :-)