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132 lines
3.6 KiB
Plaintext
132 lines
3.6 KiB
Plaintext
This is a first ported perl for the POSIX subsystem in BS2000 VERSION
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'V121', OSD V3.1, POSIX Shell V03.1A55. It may work on other
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versions, but that's the one we've tested it on.
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You may need the following GNU programs in order to install perl:
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gzip:
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We used version 1.2.4, which could be installed out of the box with
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one failure during 'make check'.
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bison:
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The yacc coming with BS2000 POSIX didn't work for us. So we had to
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use bison. We had to make a few changes to perl in order to use the
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pure (reentrant) parser of bison. We used version 1.25, but we had to
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add a few changes due to EBCDIC.
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UNPACKING:
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==========
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To extract an ASCII tar archive on BS2000 POSIX you need an ASCII
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filesystem (we used the mountpoint /usr/local/ascii for this). Now
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you extract the archive in the ASCII filesystem without I/O-conversion:
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cd /usr/local/ascii
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export IO_CONVERSION=NO
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gunzip < /usr/local/src/perl.tar.gz | pax -r
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You may ignore the error message for the first element of the archive
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(this doesn't look like a tar archive / skipping to next file...),
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it's only the directory which will be made anyway.
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After extracting the archive you copy the whole directory tree to your
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EBCDIC filesystem. This time you use I/O-conversion:
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cd /usr/local/src
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IO_CONVERSION=YES
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cp -r /usr/local/ascii/perl5.005_02 ./
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COMPILING:
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==========
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There is a "hints" file for posix-bc that specifies the correct values
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for most things. The major problem is (of course) the EBCDIC character
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set.
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Configure did everything except the perl parser.
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Because of our problems with the native yacc we used GNU bison to
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generate a pure (=reentrant) parser for perly.y. So our yacc is
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really the following script:
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-----8<-----/usr/local/bin/yacc-----8<-----
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#! /usr/bin/sh
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# Bison as a reentrant yacc:
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# save parameters:
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params=""
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while [[ $# -gt 1 ]]; do
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params="$params $1"
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shift
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done
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# add flag %pure_parser:
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tmpfile=/tmp/bison.$$.y
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echo %pure_parser > $tmpfile
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cat $1 >> $tmpfile
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# call bison:
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echo "/usr/local/bin/bison --yacc $params $1\t\t\t(Pure Parser)"
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/usr/local/bin/bison --yacc $params $tmpfile
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# cleanup:
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rm -f $tmpfile
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-----8<----------8<-----
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We still use the normal yacc for a2p.y though!!! We made a softlink
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called byacc to distinguish between the two versions:
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ln -s /usr/bin/yacc /usr/local/bin/byacc
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We build perl using both GNU make and the native make.
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TESTING:
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========
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We still got a few errors during 'make test'. Most of them are the
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result of using bison. Bison prints 'parser error' instead of 'syntax
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error', so we may ignore them. One error in the test op/regexp (and
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op/regexp_noamp) seems a bit critical, the result was an 'Out of
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memory' (core dump with op/regexp_noamp). The following list shows
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our errors, your results may differ:
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op/misc.............FAILED tests 45-46
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op/pack.............FAILED tests 58-60
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op/regexp...........FAILED tests 405-492 (core dump)
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op/regexp_noamp.....FAILED tests 405-492 (core dump)
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pragma/overload.....FAILED tests 152-153, 170-171
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pragma/subs.........FAILED tests 1-2
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pragma/warning......FAILED tests 121, 127, 130, 142
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lib/cgi-html........dubious, FAILED tests 1-17 (ALL)
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lib/complex.........FAILED tests 264, 484
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lib/dumper..........FAILED tests MANY
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Failed 7/190 test scripts, 96.32% okay. 234/6549 subtests failed, 96.43% okay.
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INSTALLING:
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===========
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We have no nroff on BS2000 POSIX (yet), so we ignored any errors while
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installing the documentation.
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USING PERL:
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===========
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BS2000 POSIX doesn't support the shebang notation
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('#!/usr/local/bin/perl'), so you have to use the following lines
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instead:
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: # use perl
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eval 'exec /usr/local/bin/perl -S $0 ${1+"$@"}'
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if $running_under_some_shell;
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