Text 2088, 170 rader
Skriven 2007-11-06 12:51:07 av madodel
Ärende: [VOICENWS] SW: Open Watcom v1.7a released.
==================================================

12:51:54 
<madodel@ptdprolog.net>, uid 50002) with qmail-scanner-2.01 
(authenticated:madodel@[24.238.79.4])
++ From the VOICE OS/2-eCS News Service   http://www.os2voice.org ++

From: Peter C. Chapin <pchapinDESPAM@DESPAMsover.net>

Open Watcom v1.7a was released last week. This release fixes two 
regressions in 1.7 relative to 1.6. These regressions affected only the 16 
bit code generator. No new features or bug fixes are in 1.7a compared to 
1.7. Note that Open Watcom v1.7 was released in August. I apologize for the 
late announcement. The 1.7 release notes are listed below.

The latest version of Open Watcom can be downloaded from 
http://www.openwatcom.org/index.php/Download. Please post questions or 
problems on the Open Watcom newsgroups (information for accessing the 
groups is on the main Open Watcom page).

Peter

OW v1.7 RELEASE NOTES

Functions using the __cdecl calling convention now return floating-point 
values in FPU registers in 32-bit code. This is the correct behaviour 
compatible with other compilers.

The C and C++ compilers now support an include_alias pragma which can be 
used, among other things, to map long include filenames onto 8.3 names. In 
addition, the compilers now support a -na switch to disable the automatic 
inclusion of _ialias.h (which contains new include_alias pragmas for 
certain standard headers).

The C compiler now emits warnings on operations which mix multi-level 
pointer types such as void** and int**. Previously a warning was only 
emitted in ANSI mode. Note that while void** is not assignment compatible 
with int**, void* is. The new stricter behaviour is in line with most other 
C compilers and helps users write cleaner and more portable code.

The C compiler now warns (W400) when an expression of plain char type is 
used as array index. Because the sign of plain char changes depending on 
compiler choice and settings, using plain char as array index is inherently 
non-portable and likely to cause problems.

The C compiler now folds constant expression before checking for range 
overflows etc. This enables the compiler to diagnose constant out of range 
issues in more cases.

The C compiler now allows benign variable redefinitions where __near or 
__far modifiers aren't always explicitly specified but match when current 
data model is taken into account (eg. 'extern int __near x;' and 'extern 
int x;' in small data models). The new behaviour is compatible with the C++ 
compiler as well as with other vendors' compilers.

The default stack size for 32-bit DOS extended executables has been 
increased from 4K to 64K. Note that the linker can still set greater or 
smaller stack size.

The code generator now produces better 16-bit code for 64-bit math operations

The code generator no longer incorrectly optimizes out conditionals. The 
problem only occurred in very rare situations and probably only when 
doubles were being compared.

A long-standing problem with use of certain 64-bit constants as results of 
ternary operators has been fixed.

The C++ compilers now has a workaround for bugzilla bug #63 
(http://bugzilla.openwatcom.org/show_bug.cgi?id=63). The compiler now 
generates an error message referring to the bug entry rather than crashing.

The LIBC and CLIB thin netware libraries have been added to the 
distribution as experimental.

32-bit DOS executables now correctly pass environment to child processes 
started through the spawn family of functions. Previous incorrect behaviour 
was introduced in version 1.6.

In the NetWare libraries, __get_stdout with __get_std_stream was causing an 
infinite recursion. This has been fixed.

Fixed 8087 emulator/mathlib 80-bit real multiplication if one operator is 
zero and second is a power of two.

The _outgtext() function in graph.lib no longer fails on 32-bit targets.

The Win32 stat() function now returns correct results when it tries to 
access a file with given name and the directory containing that file also 
contained a subdirectory with the same name.

The debugger now supports a "No Source" toggle (right mouse click menu) in 
the assembly code window to switch on/off associated source code.

The debugger no longer crashes when tracing F77 programs that use 
variable-size arrays. This only applies to DWARF debugging information 
(which is used by default).

The debugger now correctly displays multi-dimensional Fortran arrays when 
DWARF debug information format is used (which is used by default).

The debugger can now display [partial] strings in Fortran code when the 
string length exceeds the debugger's internal limit. The internal limit has 
also been increased from 512 to 1024 characters.

The resource compiler now properly copies non-resident name table when 
processing LX executables.

The console version of vi for Win32 no longer quits after Ctrl+Left is 
pressed followed by any other key.

WCL now correctly takes options from the environment when there is more 
then one file to compile.

The linker now supports a MIXED1632 option to allow mixing of 16- and 
32-bit logical segments into a single physical segment in OS/2 LX/LE 
executables.

The linker now supports a NOSTUB option for Windows and OS/2 executable 
formats. This option causes no DOS stub executable to be written to the 
output image.

The installer now allows you to disable creating program groups or 
modifying the startup environment using the /np and /ns switches.

-- 

  Warpstock 2007 - Toronto, Ontario, Canada: http://www.warpstock.org
  Warpstock Europe - Valkenswaard close to Eindhoven, the Netherlands: 
http://www.warpstock.eu

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