Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!decwrl!pa.dec.com!src.dec.com!Dick Orgass <orgass+@rchland.ibm.com>
From: orgass+@rchland.ibm.com (Dick Orgass)
Newsgroups: comp.lang.modula3
Subject: SRC Modula-3 V 1.6 for IBM RISC 6000
Message-ID: <8byD=LM91E448uXVgw@rchland.ibm.com>
Date: 2 Apr 91 21:08:39 GMT
Reply-To: "Dick Orgass" <orgass@ibm.com>
Lines: 75
To: m3

Many thanks to Eric Muller for a good new compiler and for all his help
with ports to IBM platforms.

There are three minor details to fix in the 1.6 distribution for RISC 6000:

        (1)     system/runtime/M3Machine.h.IBMR2

                The definitions of PRIVATE, IMPORT and EXPORT that
        begin on line 18 should have the word volatile deleted so
        that they read as follows:

            #define PRIVATE static
            #define IMPORT  extern
            #define EXPORT

                because the system C compiler does not accept
        declarations of functions whose return value is modified by
        volatile.

                This change does not preserve the intent of these
        declarations, variables that are private, imported or
        exported should be declared volatile but the return value of
        functions should not be volatile.  However, preserving the
        original intent requires a modification of the compiler
        itself.

        (2)     system/runtime/M3Runtime.h

        Comment out the extern declarations for TC_* that begins on
        line 22 of the file so that these identifiers are not
        multiply defined.  The compiler emits a second declaration
        (with the volatile modifier) when these identifiers are
        used.  The system C compiler rejects the redeclaration.

        (3)     build util/mkexport before building the library

                The program mkexport is used to generate the export
        list for the shared libraries that come with SRC Modula-3
        including the core library.  It is not built from the top
        level make file.  Before starting the system build, compile
        mkexport as follows:

            cd util
            bsdcc -o mkexport mkexport.c

                Instructions for adding bsdcc to your system are at
        the top of file util/config.dist-IBMR2.

Known RISC 6000 bugs

With the above corrections, the distributed system passes all test cases
and runs all programs except the following:

        (1)     tests/ptests/p083

                There is an undefined symbol when the test program
        is linked; Eric reports that the link succeeds on DEC
        platforms.

        (2)     demos/pickles/Graph4Test

                This pickle test program terminates with an
        unhandled exception Pkl.Error instead of terminating
        correctly.

        (3)     tools/pp/m3pp

                The pretty printer is not working correctly.  When
        tools/pp/Main.m3 is formatted, there is an assert failure at
        line 588 of Formatter.m3; when tools/pp/Parse.i3 is
        formatted, there is an assert failure at line 913 of
        Formatter.m3.  Similar problems come up when formatting
        other Modula-3 source files.

Dick