From: ken...@vlsi1.ultra.nyu.edu (Richard Kenner)
Subject: [gnu.gcc.announce] GCC 2.7.0 release
Date: 1995/06/23
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x-original-date: Fri, 16 Jun 95 19:02:20 -0400
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organization: Yggdrasil Computing, Inc.
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Archive-name: auto/gnu.gcc.announce/GCC_2_7_0_release
GCC version 2.7.0 has now been released.
The file gcc-2.7.0.tar.gz, 7,029,714 bytes is now available on
prep.ai.mit.edu. A file of diffs from GCC 2.6.3,
gcc-2.6.3-2.7.0.diff.gz, 1,669,339 bytes, is also available on
prep.ai.mit.edu.
The first page of the NEWS file is reproduced below. Although this
version has been tested by a large number of pretesters, there are
undoubtably bugs in this version. Specifically, we have received
reports of g++ getting link errors when compiled with -g on some
systems.
Please report bugs encountered when compiling C++ code to
bug-...@prep.ai.mit.edu and all other bugs to bug-...@prep.ai.mit.edu.
We anticipate a GCC 2.7.1 release in response to your reported bugs in
a few weeks.
Noteworthy changes in GCC version 2.7.0:
GCC now works better on systems that use ".obj" and ".exe" instead of
".o" and no extension. This involved changes to the driver program,
gcc.c, to convert ".o" names to ".obj" and to GCC's Makefile to use
".obj" and ".exe" in filenames that are not targets. In order to
build GCC on such systems, you may need versions of GNU make and/or
compatible shells. At this point, this support is preliminary.
Object file extensions of ".obj" and executable file extensions of
".exe" are allowed when using appropriate version of GNU Make.
Numerous enhancements were made to the __attribute__ facility including
more attributes and more places that support it. We now support the
"packed", "nocommon", "noreturn", "volatile", "const", "unused",
"transparent_union", "constructor", "destructor", "mode", "section",
"align", "format", "weak", and "alias" attributes. Each of these
names may also be specified with added underscores, e.g., "__packed__".
__attribute__ may now be applied to parameter definitions, function
definitions, and structure, enum, and union definitions.
GCC now supports returning more structures in registers, as specified by
many calling sequences (ABIs), such as on the HP PA RISC.
A new option '-fpack-struct' was added to automatically pack all structure
members together without holes.
There is a new library (cpplib) and program (cppmain) that at some
point will replace cpp (aka cccp). To use cppmain as cpp now, pass
the option CCCP=cppmain to make. The library is already used by the
fix-header program, which should speed up the fixproto script.
New options for supported targets:
GNU on many targets.
NetBSD on MIPS, m68k, VAX, and x86.
LynxOS on x86, m68k, Sparc, and RS/6000.
VxWorks on many targets.
Windows/NT on x86 architecture. Initial support for Windows/NT on Alpha
(not fully working).
Many embedded targets, specifically UDI on a29k, aout, coff, elf,
and vsta "operating systems" on m68k, m88k, mips, sparc, and x86.
Additional support for x86 (i386, i486, and Pentium):
Work with old and new linkers for Linux-based GNU systems,
supporting both a.out and ELF.
FreeBSD on x86.
Stdcall convention.
-malign-double, -mregparm=, -malign-loops= and -malign-jumps= switches.
On ISC systems, support -Xp like -posix.
Additions for RS/6000:
Instruction scheduling information for PowerPC 403.
AIX 4.1 on PowerPC.
-mstring and -mno-string.
-msoft-float and floating-point emulation included.
Preliminary support for PowerPC System V.4 with or without the GNU as.
Preliminary support for EABI.
Preliminary support for 64-bit systems.
Both big and little endian systems.
New features for MIPS-based systems:
r4650.
mips4 and R8000.
Irix 6.0.
64-bit ABI.
Allow dollar signs in labels on SGI/Irix 5.x.
New support for HP PA RISC:
Generation of PIC (requires binutils-2.5.2.u6 or later).
HP-UX version 9 on HP PA RISC (dynamically links even with -g).
Processor variants for HP PA RISC: 700, 7100, and 7100LC.
Automatic generation of long calls when needed.
-mfast-indirect-calls for kernels and static binaries.
The called routine now copies arguments passed by invisible reference,
as required by the calling standard.
Other new miscellaneous target-specific support:
-mno-multm on a29k.
-mold-align for i960.
Configuration for "semi-hosted" ARM.
-momit-leaf-frame-pointer for M88k.
SH3 variant of Hitachi Super-H and support both big and little endian.
Changes to Objective-C:
Bare-bones implementation of NXConstantString has been added,
which is invoked by the @"string" directive.
Class * has been changed to Class to conform to the NextSTEP and
OpenStep runtime.
Enhancements to make dynamic loading easier.
The module version number has been updated to Version 7, thus existing
code will need to be recompiled to use the current run-time library.
GCC now supports the ISO Normative Addendum 1 to the C Standard.
As a result:
The header <iso646.h> defines macros for C programs written
in national variants of ISO 646.
The following digraph tokens are supported:
<: :> <% %> %: %:%:
These behave like the following, respectively:
[ ] { } # ##
Digraph tokens are supported unless you specify the `-traditional'
option; you do not need to specify `-ansi' or `-trigraphs'. Except
for contrived and unlikely examples involving preprocessor
stringizing, digraph interpretation doesn't change the meaning of
programs; this is unlike trigraph interpretation, which changes the
meanings of relatively common strings.
The macro __STDC_VERSION__ has the value 199409L.
As usual, for full conformance to the standard, you also need a
C library that conforms.
The following lists changes that have been made to g++. If some
features mentioned below sound unfamiliar, you will probably want to
look at the recently-released public review copy of the C++ Working
Paper. For PostScript and PDF (Adobe Acrobat) versions, see the
archive at ftp://research.att.com/dist/stdc++/WP. For HTML and ASCII
versions, see ftp://ftp.cygnus.com/pub/g++. On the web, see
http://www.cygnus.com/~mrs/wp-draft.
The scope of variables declared in the for-init-statement has been changed
to conform to http://www.cygnus.com/~mrs/wp-draft/stmt.html#stmt.for; as a
result, packages such as groff 1.09 will not compile unless you specify the
-fno-for-scope flag. PLEASE DO NOT REPORT THIS AS A BUG; this is a change
mandated by the C++ standardization committee.
Binary incompatibilities:
The builtin 'bool' type is now the size of a machine word on RISC targets,
for code efficiency; it remains one byte long on CISC targets.
Code that does not use #pragma interface/implementation will most
likely shrink dramatically, as g++ now only emits the vtable for a
class in the translation unit where its first non-inline, non-abstract
virtual function is defined.
Classes that do not define the copy constructor will sometimes be
passed and returned in registers. This may illuminate latent bugs in
your code.
Support for automatic template instantiation has *NOT* been added, due
to a disagreement over design philosophies.
Support for exception handling has been improved; more targets are now
supported, and throws will use the RTTI mechanism to match against the
catch parameter type. Optimization is NOT SUPPORTED with
-fhandle-exceptions; no need to report this as a bug.
Support for Run-Time Type Identification has been added with -frtti.
This support is still in alpha; one major restriction is that any file
compiled with -frtti must include <typeinfo.h>.
Preliminary support for namespaces has been added. This support is far
from complete, and probably not useful.
Synthesis of compiler-generated constructors, destructors and
assignment operators is now deferred until the functions are used.
The parsing of expressions such as `a ? b : c = 1' has changed from
`(a ? b : c) = 1' to `a : b ? (c = 1)'.
The code generated for testing conditions, especially those using ||
and &&, is now more efficient.
The operator keywords and, and_eq, bitand, bitor, compl, not, not_eq,
or, or_eq, xor and xor_eq are now supported. Use -ansi or
-foperator-names to enable them.
The 'explicit' keyword is now supported. 'explicit' is used to mark
constructors and type conversion operators that should not be used
implicitly.
g++ now accepts the typename keyword, though it currently has no
semantics; it can be a no-op in the current template implementation.
You may want to start using it in your code, however, since the
pending rewrite of the template implementation to compile STL properly
(perhaps for 2.8.0, perhaps not) will require you to use it as
indicated by the current draft.
Handling of user-defined type conversion has been overhauled so that
type conversion operators are now found and used properly in
expressions and function calls.
-fno-strict-prototype now only applies to function declarations with
"C" linkage.
g++ now warns about 'if (x=0)' with -Wparentheses or -Wall.
#pragma weak and #pragma pack are supported on System V R4 targets, as
are various other target-specific #pragmas supported by gcc.
new and delete of const types is now allowed (with no additional
semantics).
Explicit instantiation of template methods is now supported. Also,
'inline template class foo<int>;' can be used to emit only the vtable
for a template class.
With -fcheck-new, g++ will check the return value of all calls to
operator new, and not attempt to modify a returned null pointer.
The template instantiation code now handles more conversions when
passing to a parameter that does not depend on template arguments.
This means that code like 'string s; cout << s;' now works.
Invalid jumps in a switch statement past declarations that require
initializations are now caught.
Functions declared 'extern inline' now have the same linkage semantics
as inline member functions. On supported targets, where previously
these functions (and vtables, and template instantiations) would have
been defined statically, they will now be defined as weak symbols so
that only one out-of-line definition is used.
collect2 now demangles linker output, and c++filt has become part of
the gcc distribution.
[ Most GNU software is packed using the GNU `gzip' compression program.
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EUROPE: irisa.irisa.fr:/pub/gnu, ftp.univ-lyon1.fr:pub/gnu,
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ftp.cs.columbia.edu:/archives/gnu/prep, col.hp.com:/mirrors/gnu,
gatekeeper.dec.com:/pub/GNU, ftp.uu.net:/systems/gnu
]
From: ken...@vlsi1.ultra.nyu.edu (Richard Kenner)
Subject: GCC 2.7.2 release
Date: 1995/11/30
Message-ID: <9511301323.AA00954@vlsi1.ultra.nyu.edu>#1/1
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gcc-2.7.1-2.7.2.diff.gz, 16517 bytes, and gcc-2.7.2.tar.gz, 7089723 bytes,
are now available on prep.ai.mit.edu and on the mirror sites listed
below.
This package contains compilers for the C, C++ and Objective-C
programming languages.
This release fixes some bugs discovered in GCC 2.7.1, only one of
which is serious.
We do not anticipate a 2.7.3 release; the next GCC release will be called
2.8.0.
Please report C++ bugs to:
bug-...@prep.ai.mit.edu
Please report C and Objective-C bugs to:
bug-...@prep.ai.mit.edu
[ Most GNU software is packed using the GNU `gzip' compression program.
Source code is available on most sites distributing GNU software.
For information on how to order GNU software on tape, floppy or cd-rom, or
printed GNU manuals, check the file etc/ORDERS in the GNU Emacs
distribution, ftp the file /pub/gnu/GNUinfo/ORDERS on prep, or
e-mail a request to: g...@prep.ai.mit.edu
By ordering your GNU software from the FSF, you help us continue to
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The above software will soon be at these ftp sites as well.
Please try them before prep.ai.mit.edu as prep is very busy!
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col.hp.com:/mirrors/gnu, gatekeeper.dec.com:/pub/GNU,
ftp.uu.net:/systems/gnu
]
From: ken...@vlsi1.ultra.nyu.edu (Richard Kenner)
Subject: GCC 2.7.2.1 now available
Date: 1996/08/14
Message-ID: <gnusenet9608141144.AA12466@vlsi1.ultra.nyu.edu>#1/1
X-Deja-AN: 174449642
distribution: world
followup-to: gnu.utils.bug
newsgroups: gnu.announce,gnu.utils.bug,comp.os.linux.misc
gcc-2.7.2.1.tar.gz, 7,132,291 bytes and gcc-2.7.2-2.7.2.1.diff.gz, 18,029
bytes, are now available on prep.ai.mit.edu and on the mirror sites below.
This version of GCC fixes some major bugs in GCC 2.7.2 that prevent it from
compiling some common packages on major targets. Most notably, it disables
part of a loop optimization that can generate incorrect code under obscure
circumstances that happen to occur in Linux and fixes problems compiling
Ghostscript on some machines (such as Alpha).
Most bugs reported in GCC 2.7.2, which are less severe, have not been fixed
in 2.7.2.1, but will be fixed in the next major release of GCC, 2.8.0.
You should not switch to this version if you are not having any problems
with GCC 2.7.2. Though this new version was tested by a large number of
GCC pre-testers and the changes between it and GCC 2.7.2 are small and
believed safe, it is nevertheless the case that GCC 2.7.2 has been much
more extensively tested than 2.7.2.1.
As usual, report bugs in the C++ portion of GCC to bug-...@prep.ai.mit.edu
and the rest of the compiler to bug-...@prep.ai.mit.edu.
This package contains compilers for the C, C++ and Objective-C
programming languages.
[ Most GNU software is packed using the GNU `gzip' compression program.
Source code is available on most sites distributing GNU software.
For information on how to order GNU software on tape or cd-rom, and
printed GNU manuals, check the file etc/ORDERS in the GNU Emacs
distribution, ftp the file /pub/gnu/GNUinfo/ORDERS on prep, or
e-mail a request to: g...@prep.ai.mit.edu
By ordering your GNU software from the FSF, you help us continue to
develop more free software. Media revenues are our primary source of
support. Donations to FSF are deductible on US tax returns.
The above software will soon be at these ftp sites as well.
Please try them before prep.ai.mit.edu as prep is very busy!
thanx -...@prep.ai.mit.edu
ASIA: ftp.cs.titech.ac.jp, tron.um.u-tokyo.ac.jp/pub/GNU/prep
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uiarchive.cso.uiuc.edu/pub/gnu, ftp.cs.columbia.edu/archives/gnu/prep,
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]
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