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Posix Inter-process comunication on RH 7.1



The company  I work on agreed to try the RH 7.1 for a large sw. project
(several hundreds thousands of code lines)- which works presently  on
Solaris.
I emphasize that the project is in maintenance state (sw. alredy
developed , formal tested and tried).

We started by compiling and linking the source code on Kdevelop-- though
the system manager installed just the Gnome packages.
The sw.  uses frequently  Posix inter-process mechanisms (shared memory,
semaphores, queues).

 Compilation and link went more or less OK, until we tryed to use the
debugger in a step by step mode.
The shm_open function returned with code error indicating that this
function is not
implemented (code no. 38) .
The same situation was encountered  on mq_open().
However, the included files needed for these mechanisms (mqueue.h , for
example)
did not produced any link problems.
We installed some other packages and that did not change the situation.
Can someone tell me what package(s) are needed in order to get all the
Posix inter-processing mechanisms on RH 7.1 .

Thank you
Edy Gold

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