OS/2 Professional/OS2PRO194.ISO/os2/patches/fortran/readme.a

Text File | 1993-09-23 | 45.8 KB | 1,197 lines

NOTE: Since the BPATCH.EXE program itself is being patched in this release,
the patching process should not be done from an OS/2 command prompt. Issue
the APPLYA command from a DOS box instead.

          *****************
          ** C Compiler  **
          *****************

    Added the -ri switch. This switch causes functions that
    are declared as returning char's or short's to return
    int's instead. The return value in the calling function
    is still treated as the correct type. This switch is to
    help old, incorrect code which defines functions as
    returning 'char' or 'short' but does not declare the return
    type in other files (so that the compiler assumes that
    the function returns 'int'). This switch should only
    be used as a last resort. WATCOM strongly recommends
    that functions be properly declared in all source
    files.
===========================================================

    If there was a function in the middle of an expression
    that was marked as "#pragma aux <func> aborts", the compiler
    would generate an internal compiler error 3. E.g.:

        #include <stdlib.h>
    #include <stdio.h>

    foo( int a )
    {
        if( a ) printf( "bad\n" ), exit( 1 );
    }
===========================================================

    Compiler was translating double-byte characters found in normal
    character constants and literal strings to UNICODE with -zk0u
    option. Compiler should only do this translation for wide
    character constants (L'abc') and wide character strings (L"abc").
===========================================================

    Some floating-point values that are integral did not generate
    the correct floating-point representation because of some
    rounding errors.
===========================================================

    Changed the behaviour of the -bd switch to emit correct
    library references when building Dynamic Link Libraries
    for Windows.
===========================================================

    The -pc option was not properly suppressing comments
    in conditional compilation blocks that were being
    excluded.
===========================================================

    Removed mapping of 5c (\) to unicode a5 (Yen symbol) since it
    made specification of paths impossible (e.g. \\boot\penpoint).
===========================================================

    The program:

        char foo[60u*1024];

    main()
    {
        printf( "%d\n", sizeof sizeof foo );
    }

    would print 4 with the 16 bit compiler rather than 2 as
    it should have (the type of "sizeof foo" was "long" rather
    than "unsigned int").
===========================================================

    Preprocessing directives were not scanned properly if the
    previous line consisted of white space followed by line
    continuation character '\'.
===========================================================

    Several problems with based pointers have been resolved.
===========================================================

    The compiler did not always handle out of memory
    conditions properly.
===========================================================

    The compiler did not delete its temporary work file
    if the code generator issued a fatal error message.
===========================================================

          *********************
          ** Code Generator  **
          *********************

    The compiler would generate an internal compiler error #81
    when compiling a call to pow() if inline 80x87 functions were enabled
    and the /fpr switche was used.
===========================================================

    If the address of a struct/array was taken, the loop optimizer
    could lost this information, and incorrectly treat a field/element
    as a loop invariant variable

===========================================================

    The 32-bit code generator did not generate the correct
    frame information for fixups of __far16 items under
    OS/2 2.x.
===========================================================

    When the expression being switched on was volatile, the code
    generated would sometimes load the value to test against for
    the default case then load it again to index into the jump table.
    This was bad if the value changed in between references.
===========================================================

    The inline assembler for the 386 compilers would incorrectly
    prepend an operand size prefix (0x66) to software interrupt
    instructions (e.g. int 0x21).
===========================================================

    Internal compiler error #40 fixed. Occured when transforming
    "movzx eax,xxx" into "mov al,xxx; and eax,0ffh"
===========================================================

    Codegen would GP-fault sometimes when doing some very
    obvious branch folding.
===========================================================

    #pragma aux foo="<code>" parm caller []; would not
    have parm popping code generated when inlined.
===========================================================

    Incorrect code was being generated for loops involving an
    indexed access to a static array. During strength-reduction,
    the optimizer would try to reduce a multiply by a relocatable
    constant into a series of shifts and adds.
===========================================================

    Arithmetic expressions involving a relocatable constant and an
    absolute constant would not get folded properly.
===========================================================

    When doing common subexpression elimination, the code generator
    would sometimes get confused and propagate a constant into an
    index in the wrong manner. This could lead to code such as
    array[k++] = 10;
    array[k++] = 19;
    being compiled into something which resembled
    mov    +00[ebp], 10
    mov    +10[ebp], 19    ; 10 comes from last instruction
===========================================================

    After having split a large move into a pair of smaller moves,
    one of the resulting moves would not be generated because of
    an incorrect calculation of the temp's location.
===========================================================

    Fixed handling of volatile structure members in loops.
    Codegen would erroneously hoist compares involving the
    volatile members.
===========================================================

    Codegen would try to save value of constant global|static symbols
    across function calls if it had cached the value in a register.
===========================================================

    Don't emit __loadds stuff if DS is not pegged. If DS is not
    pegged, then the value of DS just doesn't matter.
===========================================================

    Fix a bug which caused the segment override to be left off of
    instructions which were generated by splitting up another instruction.
===========================================================

    When performing constant folding on <expr> * 0 or other similar
    constructs, <expr> would be tossed even if it had side effects.
===========================================================

    The code generator did not produce the correct symbolic (-d2)
    information for the symbol 'b' in the following C++ code:

    int a;
    static int & b = a;

===========================================================

    Calling a far16 function which takes a parameter by reference
    in FORTRAN could cause incorrect code to be generated. The
    optimizer did not realize that the call could modify
    the reference parameter.
===========================================================

    Inlining code which contained stack checks would cause a
    GP fault.
===========================================================

    Under certain rare circumstances that are too complex
    to explain, the code generator would sometimes duplicate
    a push register instruction.
===========================================================

          ****************
          ** C Library  **
          ****************

    Default windowing system didn't work properly when single
    characters were output.
===========================================================

    SetWindowsHookEx was not set up properly for Windows extender.
===========================================================

    improved speed of itoa and ltoa
===========================================================

    Updated the 16-bit windows library so that users of the
    default windowing system do not have to explictly mention
    COMMDLG.LIB when linking.
===========================================================

    %s in a printf format string will print nothing if a NULL
    pointer is fed in as the argument.
===========================================================

    _beginthread for NetWare had a race condition which would
    modify stack space belonging to another process.
===========================================================

    The fwrite function would always set errno to ENOSPC
    if an error occured and more data than would fit into
    the FILE * buffer was being written out.
===========================================================

    The localtime function did not work for time == 0 when
    time zone is west of UTC.  It should have reported a date
    in 1969 (e.g., Dec. 31, 1969 19:00) but instead reported
    a date far in the future.  Also fixed a similar problem
    with mktime.
===========================================================

    NetWare version changed so that all memory allocations
    done by the library are attributed to a thread group
    belonging to the NLM containing the library, not
    the thread making the request.
===========================================================

    Floating-point output conversions introduced some
    rounding errors when converting integral values to strings.
===========================================================

    wstart3r.asm and wstart3s.asm now contain the
    __DLLstart_ symbol to allow use of the -bd switch when
    building 32-bit Windows Dynamic Link Libraries.
===========================================================

    fixed lseek() and tell() for DOS 16/32 bit systems so
    that negative offsets and offsets >2GB work properly
===========================================================

    fixed startup code so that it could handle an empty
    environment properly
===========================================================

    The text for the title bar of a default windowing application
    was moved to a separate module and placed in a global array
    called __WinTitleBar so that the user can define his own copy
    of this array with an appropriate title for his application.
    e.g.
      char __WinTitleBar[] = "My Windows Application";
===========================================================

    The _heapenable function has been added to the library.
    The prototype is in malloc.h and is:

        extern int _heapenable( int __enabled );

    If a zero is passed as a parameter then all further
    allocations which would normally go to the operating system for
    more memory will instead fail and return NULL. Passing a one
    will re-enable the system allocation requests. The return
    value is the previous state of the system allocation flag.
===========================================================

    Fixed the fread function to interact better with interactive
    devices.
===========================================================

    fdopen() for NetWare always returned with "access denied"
===========================================================

    Fixed local time functions for Windows NT to use local
    time rather than GMT time
===========================================================

    Added far pointer support to the 32 bit printf() and
    scanf() functions in the OS/2 2.x and QNX 4.2 libraries.
===========================================================

    NOVH\stdio.h fileno() macro removed.
===========================================================

          ******************
          ** C++ Compiler **
          ******************

    Overloading of functions taking member pointers to
    functions did not work properly.  Pointers to members
    of unrelated classes were considered convertable.
===========================================================

    Include directives did not handle null extensions on
    file names properly.

    i.e. #include "abc"
         Would attempt to open "abc.h" and "abc.hpp" but
     not "abc".
===========================================================

    Compiler was translating double-byte characters found in normal
    character constants and literal strings to UNICODE with -zk0u
    option. Compiler should only do this translation for wide
    character constants (L'abc') and wide character strings (L"abc").
===========================================================

    fixed problem with -d2 debugging info generation

===========================================================

    fixed problem with name mangling of names that make use
    of an undefined template class

===========================================================

    improved diagnostics for ctor initializers, member pointers,
    and syntax error recovery

===========================================================

    added -zp16 and -zdl options

===========================================================

    fixed a problem with template function analysis

===========================================================

    fixed scalar analysis for ':' portion of ternary operator
    with enumerated types

===========================================================

    static objects are linkage "C++"

===========================================================

    fixed template function binding problem with trivial conversions

===========================================================

    #line directive caused a problem when #include depth exceeded
    the available number of file handles

===========================================================

    inline reference parm optimization failed in some rare cases

===========================================================

    fixed alignment of segments to take into account the
    maximum alignment of any data item defined in the
    segment

===========================================================

    fixed import of near variables in large data models

===========================================================

    fixed return code to be non-zero when -we is specified
    and a source file contains only warnings

    return code is now 0-7 with the following bits:

    0x01 - warnings occurred with -ze specified
    0x02 - errors occurred
    0x04 - fatal error occurred

===========================================================

    new expressions like "new int(expr)" and
    "new (placement) double(expr)" (i.e., scalars) did not
    initialize the raw storage properly and/or have a value
    equal to the pointer value in some cases

===========================================================

    Some floating-point values that are integral did not generate
    the correct floating-point representation because of some
    rounding errors.
===========================================================

    Changed the behaviour of the -bd switch to emit correct
    library references when building Dynamic Link Libraries
    for Windows.
===========================================================

    Fixed problem with internal compiler error #24 caused by
    "construct once" checks for static function variables
===========================================================

    Added extension to C++ language parsed by WATCOM C++ to
    accept more than one pointer declarator in a user-defined
    conversion function id.  i.e.,  operator int **();
===========================================================

    Fixed problem with virtual table entries not being correct
    in certain hierarchies with virtual bases. e.g.,

        X vf1,vf2
          // \\
      vf1 A   B vf2
           \ /
            D
===========================================================

    Fixed a problem with the sizeof operator when applied to
    multiple string literals.  The compiler incorrectly
    returned the size of the first string literal instead
    of the size of the result.  e.g., sizeof( "1234" "5678" )
===========================================================

    Fixed a problem with generated copy constructors for
    classes with bitfields.
===========================================================

    Fixed instantiation of member functions in nested classes
    of class templates.
===========================================================

    The -j switch was affecting the name mangling algorithm
    for the type 'char'.  Programs compiled with -j could
    not link with the standard libraries as a result.
===========================================================

    Fixed <int_expr> *= <float_expr> and
    <int_expr> /= <float_expr> to properly perform the
    arithmetic in type 'double' or 'float'.
===========================================================

    Fixed destructor tables for static variables in functions.
===========================================================

    Fixed incorrect warning about an unreferenced static
    function when it had default arguments and all calls
    in the module made use of default arguments.
    i.e.,
        static void foo( int = 0 );

        void fn()
        {
        foo();
        }
===========================================================

    Fixed generated code for a "..." function that returns
    a class.
===========================================================

    Fixed segment allocation under big data memory models
    to assume external data with size less than the data
    threshold is contained in DGROUP.

===========================================================

    fixed problem with complex declarations involving more
    than one function declarator declaring arguments of
    the wrong declarator when a ( void ) declarator was
    the first declarator e.g.,

    int (*fn())( int a, int b );

    incorrectly declared 'a' and 'b' as function arguments
===========================================================

    Removed mapping of 5c (\) to unicode a5 (Yen symbol) since it
    made specification of paths impossible (e.g. \\boot\penpoint).
===========================================================

    fixed type of sizeof() operator for large sizes to be
    unsigned long
===========================================================

    fixed allocation of segments for huge static items to
    be paragraph aligned
===========================================================

    adjusted some warning levels from 1 to 3 that were
    annoying people with older code
===========================================================

    Preprocessing directives were not scanned properly if the
    previous line consisted of white space followed by line
    continuation character '\'.
===========================================================

    fixed switch statements with consecutive case values
    that had ranges of values that changed sign.
===========================================================

    fixed formatting of names in error messages for the
    case of functions with default arguments combined
    with ...
===========================================================

    fixed formatting of names in error messages for the
    case of functions with default arguments with a
    return type that has function declarators (i.e.,
    a function that returns a pointer to a function)
===========================================================

    fixed a problem when the compiler runs out of memory
    during initialization
===========================================================

    fixed a problem with diagnosing mismatched arguments
    with a single function with default arguments
===========================================================

    fixed a problem where the base type of a bit-field was
    an enum or an unadorned char and the bitfield was used
    as an argument to a function; the type of the bitfield
    expression was not correct
===========================================================

    string literals are now lvalues
===========================================================

    local variables in destructors could be destructed
    after base classes (same problem occured with
    constructors if an exception occured during the
    constructor and the constructor had local variables
    with destructors)
===========================================================

    some based pointer problems were corrected
===========================================================

    compiler-generated operator =() functions did not
    function properly if the entire hierarchy had no
    data and there were base class op= functions defined
===========================================================

    accept multiple ';'s in a class definition
    e.g.,
    struct S { int a;;;; };
===========================================================

    make C++ compiler less pedantic about the check for the
    'size_t' argument's type in operator new and delete
===========================================================

    fixed a problem with brace initialization of nested
    structures with bitfields
===========================================================

    added diagnostic for function modifiers being applied
    to variables
===========================================================

    fixed diagnosis of some abstract class hierarchies
    (improved general diagnostics for abstract classes)
===========================================================

    fixed allocation of virtual function tables to be in
    the code segment for -ml-zc or -mf-zc
===========================================================

    Some based pointer bug fixes (__self based pointers).
===========================================================

    Fixed passing of parameters to __pascal member functions
    (fix applies to any reverse argument calling convention).
===========================================================

    The following function is correctly used as a copy
    constructor.

    struct S {
    S( S const &, ... );
    };
===========================================================

    Source file is expanded to its full path for inclusion
    into the object file.  This helps debugging and minimizes
    the problems with WVIDEO not finding source files.
===========================================================

    8087-specific inline version of fabs() had a slight
    problem in -fpi87 compiles.
===========================================================

    throwing or catching an exception in an extern "C"
    function would not work if it was the first time
    in the source file the exception was described
    (exception data has linkage "C" when it should have
     had linkage "C++")
    e.g.,
        struct Exception1 {};
    extern "C" void x1( int ) {
        throw Exception1();
    }
    void x2() {
        try {
        foo(1);
        } catch( Exception1 & ) {    // would not work
        }
    }
        struct Exception2 {};
    void x3() {
        throw Exception2();
    }
    extern "C" void x4() {
        try {
        x3();
        } catch( Exception2 & ) {    // works fine
        }
    }
===========================================================

          *****************
          ** C++ Library **
          *****************

    The filebuf class did not flush pending output on an
    attached file when destructing.
===========================================================

    The istream::getline() member function did not consume
    and discard the delimiter character.
===========================================================

    Floating point formatting support was unnecessarily
    included in executables by the C++ Library that did
    not perform any floatig point formatting.
===========================================================

    The output buffer within the filebuf and stdiobuf
    classes was not being properly initialized when the
    object was used first for input, then for output.
===========================================================

    The member functions:

    ostream::operator << (streambuf *)
    istream::operator >> (streambuf *)

    had incorrect prototypes.
===========================================================

    The istream::getline() function was erroneously setting
    the ios::failbit in the error state when a null line
    was read.
===========================================================

    Fixed run-time support for exception handling (EH) for
    -3s 386 programs (compiler assumed a run-time function
    would never return)
===========================================================

    Fixed fstream open and attach functions to clear any
    stale ios::eofbit in the error state upon successful
    completion.
===========================================================

    The container class list iterator insert function would
    page fault if used on an empty list.
===========================================================

    The container class list iterator insert and append
    functions would not add items to an empty list.
===========================================================

    The container class list iterator operator-- would not
    back up an element if the current item was set to the
    last item of the list.
===========================================================

          **************
          ** DOS4/GW  **
          **************

     When DOS/4GW traps an exception, such as a
     general protection exception or a page fault, the register
     dump includes one additional piece of information.  The
     "Crash address (unrelocated)" field shows the address
     where the exception occurred as it would appear in a link
     map. This makes some understanding of a crash possible without
     loading the application in a debugger.

     Diagnostic messages for some conditions where a load
     might fail have been improved.

     INT 31h/400h (Get Version) is now supported.

     INT 31h/500h (Get Free Memory Information) now returns valid
     information in most fields.

     Memory blocks allocated through INT 31h/501h (Allocate Memory
     Block) are now correctly freed when an application shuts down.

     Several bugs in INT 31h/503h (Resize Memory Block) have been
     fixed.  This function should now work whether or not VMM is
     present.

     INT 31h/604h (Get Page Size) is now supported under VMM.
     Without VMM, it returns with carry set.

     File I/O through INT 21h/3Fh and INT 21h/40h will once again
     be passed straight through to DOS if the I/O buffer is in
     low memory and less than 64K.

     Debugging under Microsoft Windows is now more robust even
     without the Microsoft VxD VPFD.386.

     A stack fault under some DPMI hosts has been fixed.

     Some types of stack fault (exception 0Ch) are now properly
     diagnosed.

     Hardware interrupt 0Dh (IRQ5) will once again be properly
     routed to a user-installed handler.

     Chaining of exceptions is now supported.

     An intermittent crash on a hardware interrupt that was
     incorrectly identified (typically interrupt 0Fh) has been
     fixed.

     DOS/4GW will trap exception 4 (Overflow), if
     there is no user handler, and print "Unexpected interrupt 04".

     Floating point emulation is now more robust under DPMI on
     machines with no coprocessors.

     Some obscure problems in Ctrl-Break handling (involving what
     happens if you get a Ctrl-Break after you uninstall your
     handler) have been fixed.  We use a slightly bigger stack
     for handling Ctrl-Break under DPMI because some hosts seem to
     require it.  Also, we now restore the default Ctrl-C and
     Ctrl-Break handlers before spawning another application.

     An intermittent crash during VMM initialization, caused by
     getting a hardware interrupt when a segment register value
     was temporarily invalid, is fixed.

     Spawning another application, under some memory managers, on a
     machine with more than 16MB of physical memory no longer gives
     "DOS/16M error 40: not enough available extended memory (XMIN)".

     Spawning another application when VMM is in use, under some
     memory managers, no longer gives "VMM initialization error [1]".

     Some minor compatibility problems with 386Max and QDPMI have
     been corrected.
===========================================================

          *************************
          ** Example Source Code **
          *************************

    Removed unnecessary reference to iomanip.h from
    hello.cpp
===========================================================

          **************************
          ** FORTRAN 77 Compiler  **
          **************************

    The compiler would incorrectly issue an unreferenced warning
    message for the PARAMETER constant I when used as a repeat
    specifier in a DATA statement. E.g.

        PARAMETER (I=1)
    DATA N/I*7/
===========================================================

    The compiler generated unpredictable results when assigning
    to a complex field of a structured array element. E.g.

    STRUCTURE /CMPLX/
        COMPLEX Z
    END STRUCTURE
    RECORD /CMPLX/ A(2)
    A(1).Z = A(2).Z
===========================================================

    In rare circumstances, the compiler would generate object
    files that could result in large executable files.  The
    large executable files were caused by data segments
    generated by the compiler whose size was unpredictable.
===========================================================

    Examining local character variables from the debugger did
    not work.  The compiler was not generating the correct
    debugging information.
===========================================================

    The following program did not issue an error message
    indicating that the symbol C was not explicitly typed.

    IMPLICIT NONE
        COMMON A, B, C
    INTEGER A, B
    END
===========================================================

    The compiler generated incorrect debugging information
    for array arguments when the /d2 switch was specified.
    This caused garbage to be displayed when an attempt was
    made to view the contents of an array argument from
    VIDEO.
===========================================================

          ******************************
          ** FORTRAN 77 Include Files **
          ******************************

    The pragma for MakeProcInstance() defined in the file
    "win3api.fi" was incorrect.  This only affected 32-bit
    Windows applications.  The file "win3api.fi" is located
    in the "src\fortran\win" directory.

===========================================================

          *************************
          ** FORTRAN 77 Library  **
          *************************

    Fixed a problem with overlapping assignment of character
    data. E.g.

    CHARACTER*10 A
    A = A(4:)
===========================================================

    Fixed the following problem under OS/2 2.x.  Writing to
    a sequential file did not cause the written record to be
    the last record in the file.
===========================================================

    Tab characters are now allowed in list-directed input.
===========================================================

    FORTRAN thread initialization is automatically performed
    for a mixed C/C++ and FORTRAN mutlithreaded application.
===========================================================

    If a disk full condition was reached while writing to
    a file, the write operation would fail correctly but
    an attempt to close the file would fail.  This problem
    has been fixed.  Note that the I/O system does buffer
    output so that if the last write succeeds, the close
    could still fail when flushing the internal buffer to
    the disk file.  In this case, a second close must be
    issued.
===========================================================

          ***********************
          ** Graphics Library  **
          ***********************

    Added support for Cirrus Logic GD-542x SuperVGA adapters.
===========================================================

    Removed use of BIOS from _outtext in graphics mode and
    _scrollwindow in text mode.
===========================================================

    Fixed a problem where _floodfill would fail is the stack
    size was greater than 256K.
===========================================================

    Fixed a problem where _remappalette did not work correctly
    after calling _settextrows.
===========================================================

          *********************
          ** C Header Files  **
          *********************

    Improved getc/putc macros in STDIO.H for better performance
    in text files.
===========================================================

    Improved <assert.h> so that a pointer expression can
    be checked when compiling with extensions enabled
    e.g., void non_null( char *p ) { assert(p); }
===========================================================

    The errno macro in <errno.h> and <stdlib.h> is not defined
    if the macro already exists.
===========================================================

    The inline alloca sequence was modified to get better code
    generation.
===========================================================

    The 'extern' keyword was added to function prototypes
    in many of the headers to allow special purpose
    redefinitions of the function names.
===========================================================

    added <mem.h> for Borland C/C++ compatibility
===========================================================

    <iomanip.h> incorrectly defined the manipulator and
    applicator class types.
    The class name macros were not properly defined.
    Some of the manipulator inserter and extractor function
    prototypes were incorrect.
===========================================================

    The "min" and "max" macros in stdlib.h are no longer
    defined if they already exist.
===========================================================

    The IOMANIPdeclare() macro has been added.
===========================================================

    Adjusted DBL_MAX constant in <float.h>.
===========================================================

    i86.h modified so that it will not generate errors if
    compiled with -za.
===========================================================

    Use 'safer' getc and putc macros in stdio.h when
    creating a multi-threaded application.
===========================================================

          ****************
          ** Librarian  **
          ****************

    NT hosted librarian wasn't updated properly, and so it missed an
    import library generation bug fix.
===========================================================

    The librarian would sometimes return a non-zero exit
    status to the system even when only warnings had been
    issued.
===========================================================

    The librarian did not properly handle object modules
    that had mixed 16 and 32-bit PUBDEF records.
===========================================================

          *************
          ** Linker  **
          *************

    "option eliminate" wasn't in the usage information.
===========================================================

    couldn't specify the class option of the segment directive for NT
===========================================================

    tweaked the 16-bit aliasing code in OS/2 V2 formats to make the
    V1.9 rational extender work better with wvideo.
===========================================================

    linker wasn't exporting symbols properly under novell.
===========================================================

    linker wasn't recognizing OS/2 lx dll's properly with the oldlibrary
    option.
===========================================================

    changed a few of the linker messages for QNX.
===========================================================

    16-bit offset additive fixups under os2 lx and le formats were
    stomping on the 2 bytes following the fixup.
===========================================================

    don't emit internal fixups for os/2 lx executables unless the user
    specifies "option internalrelocs"
===========================================================

    don't fill out the pages at the end of objects for os/2 lx executables.
===========================================================

    don't cache object files in a windows dos box, as that can cause
    unnecessary paging.
===========================================================

    the linker was not working properly when there was a pubdef redefining
    a comdat.
===========================================================

    don't emit zero size physical segments under NT, as the loader is not
    handling them properly.
===========================================================

    modified handling of object file structures to improve speed for some
    large C++ .obj files.  fixed a map file typo as well.
===========================================================

          ***********
          ** Make  **
          ***********

    macros are not defined to null anymore when they are
    used in a !ifeq directive
===========================================================

    fixed adding of more dependencies to a single colon
    target for the case where the single colon target
    does not have any dependencies
    e.g.,
        test :
        cmd
        test : dep1 dep2

===========================================================

    fixed intercepting of cd commands for Windows NT version
    of WMAKE
===========================================================

    made !undef of an undef'd macro warning only come out if
    -d option (debugging) is on
===========================================================

          ***********************
          ** Windows SDK Tools **
          ***********************

    Fixed Resource compiler bugs where
    1. If two NT resources of the same type had names where one was
       a prefix of the other an incorrect resource file was generated.
    2. An incorrect error message was generated when the preprocessor
       could not find an include file.
===========================================================

    Fixed Resource compiler bugs where
    1. VersionInfo resources were not written correctly for Windows NT.
    2. C statements in #include'ed .c and .h files were not ignored
       when the included file was specified with a capitalized extension
       ( ex STDIO.H instead of stdio.h)
===========================================================

    Fixed a Heapwalker bug where the heapwalker failed to identify the
    owner of some global heap items.
===========================================================

    Fixed a resource compiler bug where entering negative values in
    an RCDATA resource caused an error to be reported.
===========================================================

    Fixed a resource compiler bug where an error message was reported
    when adding resources to PE executables with a .bss object
    larger than the size of the exe file.
===========================================================

          *************************
          ** Windows Supervisor  **
          *************************

    Added 128 exported symbols to W386DLL.EXT. These symbols are
    called DLL1, DLL2, etc, up to DLL128. You can now call one of
    these exported names rather than calling Win386LibEntry.
    e.g.   DLL7( parm1, parm2, parm3 );  is equivalent to
           Win386LibEntry( parm1, parm2, parm3, 7 );
    You must still call DefineDLLEntry in your initialization code
    to define what parameters are to be expected by the call.

    WEP is now entry number 129 and Win386LibEntry is entry number 130.
===========================================================

    Removed unnecessary exports of CB1 to CB512.
===========================================================

    Aliases for huge pointers failed when application memory
    was greater than 1MB.

    C++ global destructors were being called when DLL initialization
    was completed, as opposed to when the DLL was exiting.
===========================================================

    The DLL supervisor no longer displays a MessageBox when an error
    occurs initializing the DLL (eg. not enough memory). It just
    returns failure and it is up to the caller of LoadLibrary to
    handle the error.
===========================================================

    The Windows supervisor has been modified so that it has a better
    chance of successfully initializing in low memory conditions.
===========================================================

          *************
          ** WVIDEO  **
          *************

    The NetWare NLM Debug servers would crash NetWare if you
    tried to debug a multi-threaded application.
===========================================================

    Debugging with /TRAP=RSI in a Windows DOS box did not
    always work.
===========================================================

    The OS/2 SERSERV only allowed COM1 and COM2. It now
    allows up to COM9.
===========================================================

    Under certain conditions of extreme low memory (typically
    only under DOS), WVIDEO could mess up its memory management.
    This could cause internal errors, hangs, and other stuff
    that people tend not to like.
===========================================================

    When using the /vga50 option with the Windows hosted
    debugger, WVIDEO would act as if there were 50 lines
    on the screen, but would not set the character font
    properly. This would cause only the first 25 lines of
    the debuggers windows to appear.
===========================================================

    When using the "Select file..." dialog from the
    startup options box of the Windows hosted debugger, WVIDEO
    would fail to insert a space between the end of the
    options specified and the start of the file name that
    was selected.
===========================================================

    The BINW\VDMSERVW.EXE file was accidently left off of
    the distribution diskettes.
===========================================================

    Some problems with watchpoints under Netware 4.0 have
    been corrected.
===========================================================

    The debugger no longer considers symbols of the same
    name from different EXE's/DLL's as ambiguous. It will
    choose the symbol from the EXE or DLL that was loaded
    first. If you want the symbol from the later DLL, you
    must use a module specifier on the symbol name.
===========================================================

    Extended DOS programs which grab the keyboard hardware
    interrupt (int 9) and do not chain in their handlers
    (Metagraphics) can now be debugged under real DOS.
    They will still fail in OS/2 or Windows DOS boxes, but
    you can use the /TR=VDM or /TR=WIN remote debugging
    links to handle them there.
===========================================================

    Added WVPMHELP.EXE.  This solves the problem where typing
    ALT-ESC while debugging a PM application hung the OS/2 input
    system. You do not have to start this program. The debugger
    will automatically start it when it detects that it is
    debugging a PM application. It creates a small PM window
    application with a "Switch" menu item which you can click
    on to switch back to the debugger screen.
===========================================================

    Changed the RSI.TRP file to respect the DOS4GPATH environment
    variable when searching for the dos extender.
===========================================================

    Disallowed debugging of a PM app from a windowed OS/2 session,
    since it would hang PM's message queue, killing OS/2.
===========================================================

          ***********
          ** WOMP  **
          ***********

    when converting object files from easy-omf to microsoft, womp would
    sometimes delay emitting the flat group record a bit too long.
===========================================================

          ***************
          ** Profiler  **
          ***************

    Fixed problem where important code loads were being ignored
    in Windows applications.
===========================================================

    There was a race condition in WSAMPRSI that could cause
    it to report a task exception if the _MARK_ function
    had been enabled in the user program.
===========================================================