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* vms/* Makefile.am: included OpenVMS port instructions from John A Fotheringham, integrated in the tar file. Daniel
142 lines
4.7 KiB
Plaintext
142 lines
4.7 KiB
Plaintext
Building XSLT under OpenVMS
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===========================
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Here's a summary of the issues I encountered when building XSLT under
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VMS. I'd previously done the same for the LIBXML package, on which
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XSLT depends.
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I present this list "as is" to hopefully act as a guide to anyone
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having similar problems in the future.
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That's it. Good luck!
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John A Fotheringham (jaf@jafsoft.com)
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November 2001
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Installation kit
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----------------
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- File attributes. When downloading essentially a Unix distribution,
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some of the file attributes may not be correct... especially those
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in the [.VMS] subdirectory. In EDT you could see line feeds and
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carriage returns as <LF><CR> etc. To correct this use the command
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$ set file <filespec> /attr=rfm=stm
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This sets the record format to be "stream". Other variants may be
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used instead depending on how you got the files onto your system.
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Files will look okay in an EDT editor once the attributes are set.
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Without this the command file may not run correctly, since it may
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be interpreted as a single line.
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- VMS-specific files are in a [.VMS] directory. If you've found
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this file then you already know this :-) This directory contains
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BUILD_XSLT.COM - a build command file
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README.VMS - these notes
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- Don't execute BUILD_LIBXML.COM until you've done all the
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following
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- read these notes
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- define the logicals XMLOLB and LIBXML
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- copy CONFIG.H to [.libxslt] and [.libexslt]
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- reviewed the configuration section of BUILD_XSLT.COM, and in
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particular update the module lists in line with MAKEFILE
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- re-read these notes :-p
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instructions for all these steps are below.
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- the XSLT package requires the LIBXML package to have been
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previously been installed. The following logicals should be
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defined
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LIBXML - the directory containing LIBXML's .h files
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XMLOLB - the directory to contain both the LIBXML and XSLT
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object libraries
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- you'll need to copy config.h into the [.libxslt] and [.libexslt]
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directories. If in the future a VMS-specific version is created,
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use [.vms]config.vms instead.
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- The command file BUILD_XSLT.COM will do the following
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- setup and test some logicals
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- set def to the source directory
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- compile modules and place them into a LIBXSLT.OLB library
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- compile modules and place them into a LIBEZSLT.OLB library
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- compile and link the XSLTPROC program
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- set def back to the original directory (i.e. if it fails you
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might not be where you started :-)
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before running this command file review the configuration segment
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at the top. In particular compare the lists of modules with those
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in the most recent version of MAKEFILE.IN files sound in the source
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directories. Instructions are contained in the command file itself.
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The TRIO package
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----------------
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- The libxml package uses a sub-package TRIO to provide some
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functions not naturally available under VMS. These include support
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for infinite and undefined numbers, and specialised print functions
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like "snprintf"
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To build this software we need to add
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/IEEE_MODE=UNDERFLOW_TO_ZERO/FLOAT=IEEE
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to the compile command for xsltutils, and to any main program
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that uses this functionality. BUILD_XSLT.COM should do this
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for you.
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Without this you are likely to get run-time errors like this
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%SYSTEM-F-HPARITH, high performance arithmetic trap, Imask=00000000,
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Fmask=00000 400, summary=02, PC=000000000006A330, PS=0000001B
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-SYSTEM-F-FLTINV, floating invalid operation, PC=000000000006A330,
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PS=0000001B
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If this occurs you'll need to locate the modules that need the
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above switches applied
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Compiler and linker errors
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--------------------------
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- with respect to the TRIO package you'll get the error
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"no main module for UNDERFLOW_TO_ZERO"
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You can suppress this "expected" messages by using the compile command
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$ CC /WARN=DISABLE=(NOMAINUFLO)
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- the Linker will report the following error
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%LINK-W-MULDEF, symbol DECC$STRERROR multiply defined
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in module DECC$SHR file SYS$COMMON:[SYSLIB]DECC$SHR.EXE;5
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This is complaining that DECC$STRERROR is multiply defined, which
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in turn is because this system symbol is getting added to LIBXML.OLB
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when strio.c was compiled in the libxml package.
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I'm not sure what the solution for this is, but this is a fairly
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benign error.
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Changes made to the codebase
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----------------------------
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- In the module extensions.c the name
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xsltExtModuleElementPreComputeLookup
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is too long (more than 31 characters). The solution has been
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to rename it to a shorter name on VMS builds, and to then
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create a #define that maps the longer name to the shorter name,
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so that all references to the longer name will work.
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You may need to repeat this exercise with any future modules added.
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