Re: [xmlblaster] Compiling cpp client in mac osx

[Ricardo Jorge Jota <rjc at immi.inesc-id.pt>]

Hi,
> What was the change you made?
> Did the C client compile well without changes (build c), where the  
> problems in C++ only?
The problems is in the #include<malloc.h> (./src/c/util/queue/ 
SQLiteQueue.c:#include <malloc.h>).

Now, in Mac  - using Fink - you have two include locations : /sw/lib  
and /usr/lib. The sw is the Fink one, the usr is the os x system one.
The include malloc.h is in /usr/lib/malloc/malloc.h. In linux the  
right path is: /usr/lib/malloc.h. In order to solve this I changed  
the source code, but i'm not sure the best way to do this.


> > After this problem was solved the following command (the ./build - 
> > verbose cpp showed me the command)
> > gcc -g -prebind -dynamiclib -o libxmlBlasterClientCD.dylib ../ 
> > build.tmp/objCD/helper.o ../build.tmp/objCD/ 
> > XmlBlasterAccessUnparsed.o ../build.tmp/objCD/ 
> > CallbackServerUnparsed.o ../build.tmp/objCD/ 
> > XmlBlasterConnectionUnparsed.o ../build.tmp/objCD/msgUtil.o ../ 
> > build.tmp/objCD/xmlBlasterSocket.o ../build.tmp/objCD/ 
> > SQLiteQueue.o ../build.tmp/objCD/Properties.o ../build.tmp/objCD/ 
> > xmlBlasterZlib.old: warning prebinding disabled because of  
> > undefined symbols
>
> This is the C shared lib linking output on my Linux box:
>
> gcc -g -shared -o libxmlBlasterClientCD.so ../build.tmp/objCD/ 
> helper.o ../build.tmp/objCD/XmlBlasterAccessUnparsed.o ../build.tmp/ 
> objCD/CallbackServerUnparsed.o ../build.tmp/objCD/ 
> XmlBlasterConnectionUnparsed.o ../build.tmp/objCD/msgUtil.o ../ 
> build.tmp/objCD/xmlBlasterSocket.o ../build.tmp/objCD/ 
> SQLiteQueue.o ../build.tmp/objCD/Properties.o ../build.tmp/objCD/ 
> xmlBlasterZlib.o -L/opt/sqlite-bin/lib -lsqlite -L/opt/zlib-bin/lib  
> -lz
>
> I wonder why cpptasks leaves away the sqlite and zlib in your case  
> (pthread is not needed explicitly on Linux).
I think the problem lies within the -prebind flag. From what I could  
gather this allows you to remove the gcc -L and -l flags. Although  
i'm not sure about this it seams that the /sw/lib path -the fink path  
- isn't prebound (OSX prebind all their dylib.). I'm not sure if you  
can disable -prebind in the cpp-tasks when the MAC OSX system is found.

> > Unfortunately _gethostbyname_r doesn't get solved and after  
> > "googling" it seems that this symbols doesn't exist in OS X.
> This is just the thread safe variant of gethostbyname().
> Please add your own gethostbyname_r() variant in your code and  
> implement it using
> gethostbyname().

I'd love to implement a new one. But I have some questions about you  
code. First and foremost i'd like to test the ones already coded. Now  
if I read you code correctly you use #defines to select the correct  
one. As the darwin - the osx "kernel"- is mostly bsd maybe the bsd  
implementation works. But I don't know how to find the correct  
#define value for osx. Can you shed some light on this ?

Thank in advance,
Ricardo Jota