PERLQNX(1) Perl Programmers Reference Guide PERLQNX(1)
README.qnx - Perl version 5 on QNX
As of perl5.7.2 all tests pass under:
Watcom 10.6 with Beta/970211.wcc.update.tar.F
socket3r.lib Nov21 1996.
Some tests may complain under known circumstances. See below and hints/qnx.sh for more
Under QNX 6.1.0 there are still a few tests which fail. See below and hints/qnx.sh for
Required Software for Compiling Perl on QNX4
As with many unix ports, this one depends on a few "standard" unix utilities which are not
necessarily standard for QNX4.
This is used heavily by Configure and then by perl itself. QNX4's version is fine, but
Configure will choke on the 16-bit version, so if you are running QNX 4.22, link
/bin/sh to /bin32/ksh
ar This is the standard unix library builder. We use wlib. With Watcom 10.6, when wlib
is linked as "ar", it behaves like ar and all is fine. Under 9.5, a cover is required.
One is included in ../qnx
nm This is used (optionally) by configure to list the contents of libraries. I will gen-
erate a cover function on the fly in the UU directory.
cpp Configure and perl need a way to invoke a C preprocessor. I have created a simple
cover for cc which does the right thing. Without this, Configure will create its own
wrapper which works, but it doesn't handle some of the command line arguments that
perl will throw at it.
You really need GNU make to compile this. GNU make ships by default with QNX 4.23, but
you can get it from quics for earlier versions.
Outstanding Issues with Perl on QNX4
There is no support for dynamically linked libraries in QNX4.
If you wish to compile with the Socket extension, you need to have the TCP/IP toolkit, and
you need to make sure that -lsocket locates the correct copy of socket3r.lib. Beware that
the Watcom compiler ships with a stub version of socket3r.lib which has very little func-
tionality. Also beware the order in which wlink searches directories for libraries. You
may have /usr/lib/socket3r.lib pointing to the correct library, but wlink may pick up
/usr/watcom/10.6/usr/lib/socket3r.lib instead. Make sure they both point to the correct
library, that is, /usr/tcptk/current/usr/lib/socket3r.lib.
The following tests may report errors under QNX4:
ext/Cwd/Cwd.t will complain if `pwd` and cwd don't give the same results. cwd calls `full-
path -t`, so if you cd `fullpath -t` before running the test, it will pass.
lib/File/Find/taint.t will complain if '.' is in your PATH. The PATH test is triggered
because cwd calls `fullpath -t`.
ext/IO/lib/IO/t/io_sock.t: Subtest 14 is skipped due to the fact that the functionality to
read back the non-blocking status of a socket is not implemented in QNX's TCP/IP. This has
been reported to QNX and it may work with later versions of TCP/IP.
QNX auxiliary files
The files in the "qnx" directory are:
A script that emulates the standard unix archive (aka library) utility. Under Watcom
10.6, ar is linked to wlib and provides the expected interface. With Watcom 9.5, a
cover function is required. This one is fairly crude but has proved adequate for com-
A script that provides C preprocessing functionality. Configure can generate a simi-
lar cover, but it doesn't handle all the command-line options that perl throws at it.
This might be reasonably placed in /usr/local/bin.
Outstanding issues with perl under QNX6
The following tests are still failing for Perl 5.7.3 under QNX 6.1.0:
op/sprintf.........................FAILED at test 91
lib/Benchmark......................FAILED at test 26
This is due to a bug in the C library's printf routine. printf("'%e'", 0. ) produces
'0.000000e+0', but ANSI requires '0.000000e+00'. QNX has acknowledged the bug and it
should be fixed in 6.2.0.
Norton T. Allen (email@example.com)
perl v5.8.0 2003-02-18 PERLQNX(1)