--- gcc/NEWS	2018/04/24 18:17:53	1.1.1.3
+++ gcc/NEWS	2018/04/24 18:31:45	1.1.1.5
@@ -1,3 +1,270 @@
+Noteworthy changes in GCC version 2.7.2.1:
+
+This release fixes some serious bugs discovered since the 2.7.2 release.
+
+Noteworthy changes in GCC version 2.7.2:
+
+A few bugs have been fixed (most notably the generation of an
+invalid assembler opcode on some RS/6000 systems).
+
+Noteworthy changes in GCC version 2.7.1:
+
+This release fixes numerous bugs (mostly minor) in GCC 2.7.0, but
+also contains a few new features, mostly related to specific targets.
+
+Major changes have been made in code to support Windows NT.
+
+The following new targets are supported:
+
+	2.9 BSD on PDP-11
+	Linux on m68k
+	HP/UX version 10 on HP PA RISC (treated like version 9)
+	DEC Alpha running Windows NT
+
+When parsing C, GCC now recognizes C++ style `//' comments unless you
+specify `-ansi' or `-traditional'.
+
+The PowerPC System V targets (powerpc-*-sysv, powerpc-*-eabi) now use the
+calling sequence specified in the System V Application Binary Interface
+Processor Supplement (PowerPC Processor ABI Supplement) rather than the calling
+sequence used in GCC version 2.7.0.  That calling sequence was based on the AIX
+calling sequence without function descriptors.  To compile code for that older
+calling sequence, either configure the compiler for powerpc-*-eabiaix or use
+the -mcall-aix switch when compiling and linking.
+
+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.
+
 Noteworthy changes in GCC version 2.6.3:
 
 A few more bugs have been fixed.
@@ -159,9 +426,9 @@ Noteworthy changes in GCC version 2.5.8:
 
 This release only fixes a few serious bugs.  These include fixes for a
 bug that prevented most programs from working on the RS/6000, a bug
-that caused invalid assembler code for prgrams with a `switch'
+that caused invalid assembler code for programs with a `switch'
 statement on the NS32K, a G++ problem that caused undefined names in
-some configurations, and several less erious problems, some of which
+some configurations, and several less serious problems, some of which
 can affect most configuration.
 
 Noteworthy change in GCC version 2.5.7: