[Opalvoip-user] Mac OS X Build instructions for and patch to make ptlib 2.6.5 and opal 3.6.6.

[Mark F. <ma...@po...>]

Criag

for wiki (1st draft of Mac OS X buid instructions).

1. Download and install:
http://mac.softpedia.com/progDownload/pkg-config-Download-46896.html

cd pkg-confiug
./configure
make
sudo make install

2. download opal and ptlib (that matches version of opal).

uncompress where PTLIB and OPAL are in folder such as $HOME/h323:
NOTE: make sure full path has no special char or spaces in it.

For bash/sh
   export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
   export LD_LIBRARY_PATH=/usr/local/lib
   export PTLIBPLUGINDIR=/usr/local/lib/ptlib-minor.major.patch
   export PTLIBDIR=$HOME/h323/ptlib
   export OPALLIBDIR=$HOME/h323/opal

cd ~/h323/ptlib
./configure --enable-wavfile --enable-openssl
make
sudo make install

cd ../opal

./configure
sudo make install

NOTE: if you want h.323 and H264  you need to install FFPEG
./configure --enable-h264 --enable-ffmpeg-h263 --with-libavcodec- 
source-dir=../ffmpeg/


3. to universal binary for MacOS X you need to setup arch for other cpu.
  * CFLAGS contains multiple "-arch xxx" flags.
  * Or, set TARGET_ARCHS to a space-separated list (e.g. "x86 x86_64  
ppc")
TARGET_ARCHS is a bit more forgiving than CFLAGS (x86 will match i386,  
powerpc will match ppc).


4. BUGS to fix for Mac OS X build:

4a. OPAL plugin bug: Not looking for plugins with .dylib (still  
looking for .so).

Files effected are:

PTLIB:
src/ptlib/unix/udll.cxx

PString PDynaLink::GetExtension()
{
#ifdef P_MACOSX
  return PString(".dylib");
#else
  return PString(".so");
#endif
}

and

OPAL:
plugins/video/common/dyna.cxx:    in bool DynaLink::InternalOpen(const  
char * dir, const char *name)
...
#ifndef _WIN32
#ifdef P_MACOSX
  strcat(path,".dylib");
#else
   strcat(path, ".so");
#endif
#endif


4b. PTLIB Patch for Mac OS X build of PTLib v2.6.5  (Unix Darwin  
(9.8.0-i386) with PTLib (v2.6.5))

- fix PSETPGRP for current Mac OS X SDK
- fix / implement absolute timer. alternative is:
   http://le-depotoir.googlecode.com/svn/trunk/misc/clock_gettime_stub.c




diff ~/ptlib/include/ptlib/unix/ptlib/pmachdep.h /Users/Mark/h323/ 
ptlib/include/ptlib/unix/ptlib/pmachdep.h
345c345,347
< #define _POSIX_MONOTONIC_CLOCK
---
 >
 > // for timers use: clock_gettime() in osutil.cxx
 > //#define _POSIX_MONOTONIC_CLOCK
350c352
< #define PSETPGRP()  setpgrp(0, 0)
---
 > //#define PSETPGRP()  setpgrp(0, 0)
351a354,359
 > #if defined (P_MACOSX) && (P_MACOSX >= 908)
 > // OS X 10.5.8 with XCODE Version 3.1.4 and 10.5 SDK
 > #define PSETPGRP()  setpgrp()
 > #else
 > #define PSETPGRP()  setpgrp(0, 0)
 > #endif



diff ~/ptlib/src/ptlib/unix/osutil.cxx /Users/Mark/h323/ptlib/src/ 
ptlib/unix/osutil.cxx
58a59
 >
147a149,152
 > #if defined(P_MACOSX)
 > #include <mach/mach_time.h>
 > #endif
 >
301,302c306,308
< // timer
<
---
 > // timer - milliseconds -
 > //         A millisecond (from milli- and second; abbreviation: ms)  
is a thousandth (1/1000) of a second.
 > //         A microsecond is equal to 1000 nanoseconds or 1/1000  
millisecond.
305a312,342
 >
 >  #if defined(P_MACOSX)
 >
 > // Mac OS X  reference: http://www.mail-archive.com/yad...@li.../msg01354.html
 > // and http://www.macresearch.org/tutorial_performance_and_time
 > // and http://developer.apple.com/mac/library/qa/qa2004/qa1398.html
 >
 >    static mach_timebase_info_data_t timebase_info;
 >    if (timebase_info.denom == 0) {
 >
 >      // Zero-initialization of statics guarantees that denom will  
be 0 before
 >      // calling mach_timebase_info.  mach_timebase_info will never  
set denom to
 >      // 0 as that would be invalid, so the zero-check can be used  
to determine
 >      // whether mach_timebase_info has already been called.  This  
is recommended by Apple's QA1398.
 >      kern_return_t kr = mach_timebase_info(&timebase_info);
 >       PAssert(kr == KERN_SUCCESS, POperatingSystemError);
 >    }
 >
 >    // mach_absolute_time is it when it comes to ticks on the Mac.   
Other calls
 >    // with less precision (such as TickCount) just call through to  
mach_absolute_time.
 >
 >    // timebase_info converts absolute time tick units into  
nanoseconds.  Convert
 >    // to microseconds up front to stave off overflows.
 >    return mach_absolute_time() / 1000LL *       // 1000 nanosec / 1  
millisec
 >                     timebase_info.numer / timebase_info.denom;
 >
 >    // Don't bother with the rollover handling
 >    // With numer and denom = 1 (the expected case), the 64-bit  
absolute time
 >   // reported in nanoseconds is enough to last nearly 585 years.
 >
 > #else
310a348
 >
315a354
 > #endif