Log message:
boost: updated to 1.68.0

1.68.0:
New Libraries
YAP:
An expression template library for C++14 and later, from Zach Laine.

Updated Libraries
Beast:
This version fixes a missing executor work guard in all composed operations used \ 
in the implementation. Users who are experiencing crashes related to \ 
asynchronous completion handlers are encouraged to upgrade.
For a complete list of changes, please view the official Release Notes.
Context:
78: Linker error with context-impl=ucontext: multiple definition of \ 
boost::context::detail::current_rec
Coroutine2:
14: crash while stack unwinding
18: some guidance on why to use coroutine2
20: failes to compile test in due to the error C2039
22: undefined behaviour documentation
Fiber:
170: buffered_channel::try_push has incorrect documentation
172: WIN64: 'invalid conversion from 'HANDLE' to \ 
'std::thread::native_handle_type' errors for builds using mingw-w64
175: throw exception "Operation not permitted"
NUMA support moved to extra library (fiber-numa); enabled via property numa (numa=on)
Fusion:
Added a workaround for ambiguous call of fusion::deque constructor on GCC 4.4/c++0x
Fixed a bug with C-style array
Fixed a fusion::for_each signature to take functor by value
This may break existing code with non-copyable (non-movable) functor, but the \ 
implementation wasn't correct for a long time; the documantation was correct \ 
from the first. So, please make sure your usage.
Fixed unintentional MPL placeholder substituion bug on fusion::transform.
Moved description, how to conform Fusion sequence as MPL sequence, to mpl section.
Added notes regarding IO facility for adapted type.
Geometry:
Improvements
469 Horizontal grid shift (nadgrids) in SRS transformations (undocumented for \ 
now due to potential interface changes).
478 Box-Segment distance for spherical and geographic coordinate systems.
487 Missing combinations of geometries in distance for spherical and geographic cs
489 Additional direct geodesic problem formulas for internal use
Solved issues
470 Assertion failure with short spherical and geographic segments.
471 Invalid envelope of spherical polygon
498 Unexpected results with expand() and make_inverse() for spherical and \ 
geographic CS
Bugfixes
488 Handle non-true-references in closing_iterator and ever_circling_range_iterator
495 VxWorks 7 cross-compilation issue.
GIL:
The I/O extensions have been entirely rewritten.
The library now requires a C++11-compliant compiler.
Documentation has been reformatted and updated.
Graph:
Conditionally replace deprecated/removed C++98 std::bind1st by std::bind, \ 
std::auto_ptr by std::unique_ptr, and std::random_shuffle by std::shuffle.
Fix compiler error with release builds on VS2015
Fix the Stanford GraphBase examples
Fix friend declarations for iterator_core_access
Add missing <boost/iterator.hpp> include
Avoid an unused variable warning
Fix some typos in documentation
Fix some issues in tests and examples
Lexical Cast:
Fixes for clang-tidy warnings 12092
Log:
Improved support for VxWorks.
Save and restore ebx register on x86 PIE targets in the dump stream manipulator \ 
implementation.
Math:
Support for arbitrary precision complex valued quadrature and hence contour \ 
integration
Improve performance of polynomial addition
Math:
Continue to improve numerical integration routines, and in particular add \ 
support for contour integrals.
Improve accuracy of erfc function's rational approximations.
Multi-index Containers:
Containers of moveable but non-copyable elements can now be serialized (ticket \ 
13478). Thanks to Sébastien Paris for the report.
multi_index_container's default constructor is no longer explicit (ticket 13518).
Multiprecision:
Support for multiprecision complex numbers
Multiprecision:
Support added for complex multiprecision numbers.
Changed conversion to unsigned integer types to be truncating to match standard \ 
defined behaviour.
Correct bug in MPFR string formatting.
Fix undefined behaviour in cpp_dec_float conversion from long long.
Add support for Eigen interoperability.
float128.hpp: Fix Intel on Windows build.
Fix type used in temporaries when expanding expression templates containing \ 
mixed expressions.
Fix infinite loop in gmp_float to fixed-point string conversion.
Update the expression templates to issue static_asserts with better error \ 
messages when you try and do something unsupported.
Fix bug in cpp_int where incrementing to zero doesn't set the sign correctly.
Remove erroneous use of std::move, and rely on NVRO instead.
Fix up support for changes to MPIR-3.0.
Fix various conversion errors in cpp_bin_float when the exponent type is a long \ 
long, or else we're converting to an integer that is wider than we are.
Fix compatibility issue with GCC-8 caused by the introduction of std::byte.
Optional:
Added member function has_value() for compatibility with std::optional (issue 52).
Added member function map() for transforming optional<T> into \ 
optional<U> using a function of type T -> U.
Added member function flat_map() for transforming optional<T> into \ 
optional<U> using a function of type T -> optonal<U>.
Predef:
Add support for __ARM_ARCH macro.
Add detection for PTX architecture.
Add nvcc compiler detection.
Add support for detecting CUDA.
Remove reference to obsolete BOOST_ARCH_AMD64.
Program Options:
Support for multiple long names for an option, thanks to Eyal Rozenberg
Python:
Bug fixes to correct autolink support (Windows)
Rational:
Fixed undefined behavior in normalize()
System:
Add constexpr to error_code and error_condition members under C++14 and above
Signals:
Removal Notice: Boost.Signals will be removed in the next release. Boost.Signals \ 
was deprecated in version 1.54.0. Transition to Boost.Signals2 now to avoid \ 
disruption.
Stacktrace:
Fixed compilation on Solaris and other platforms that do qualify address as \ 
const in dladdr function (github 54).
Dropped dependency on Boost.LexicalCast.
Test:
Boost.test v3.8 see the Changes log for more details.
Breaking changes
The master_test_suite_t object is no more copyable
New feature:
Dataset test case can now use command line parameters
TypeIndex:
Dropped dependency on Boost.MPL.
Uuid:
Breaking change: sha1 detail namespace header redirection for backwards \ 
compatibility was removed
Added support for std::hash
Added support for move semantics on random generators
Properly handle EINTR when acquiring entropy
Use getrandom(2) instead of getentropy(3) on linux

Log message:
Version 1.65.0
New Libraries: PolyCollection, Stacktrace. Updated Libraries: Asio, Context, \ 
Config, Core, Coroutine2, DLL, Fiber, Fusion, Geometry, Hash, Log, Phoenix, \ 
Predef, Program Options, Python, Smart Pointers, Test, TypeIndex, Unordered, \ 
Utility, Variant.

Log message:
Changes 1.63.0:

Atomic:
* Added the static constant atomic<T>::is_always_lock_free for conformance \ 
with C++17. The constant indicates that the given specialization always provides \ 
lock-free implementation of atomic operations.
* Improved support of Oracle Studio on x86 targets.

Container:
* Fixed bugs

Context:
* 11687 Xcode (Apple clang) and thread_local
* 12114 context does not preserve fpu context on ios arm64 devices (fixed for \ 
other architecturs too)
* 12411 fpu registers not preserved with O2 optimizations in Visual Studio \ 
(fixed for other architecturs too)
* 12551 building boost on arm64 causes error: unknown directive
* reduced signatur for ontop-functions
* unit-test for private fcontext-API
* performance-test for ucontext and fcontext fixed

Fiber:
* unbounded_channel and bounded_channel marked as deprecated
* new classes buffered_channel and unbuffered_channel
* performance improved

Fusion:
* Fixed fusion::vector buggy constructors (Thanks to Lee Clagett).
* BOOST_FUSION_ADAPT* and BOOST_FUSION_DEFINE* now allow empty structures. (6592)
* BOOST_FUSION_DEFINE* allows move constructor and assignment. (10099)
* Adaptor for std::array (Thanks to Mateusz Łoskot). (8241)
* Fixed returning temporary variable warnings on MSVC.

Geometry:
* Intersection: take care that output is valid (work in progres, not yet \ 
finished - but more is valid)
* 12289 Avoid warning/compilation error for std::cout
* 12412 Invalid result of covered_by() with geographic Points and Boxes
* 12413 rtree::remove() not working properly with geographic Points

Hash:
* Fixed some warnings.

Interprocess:
* Fixed bugs

Intrusive:
* Fixed bugs

Lexical Cast:
* Fixed issue found by -fsanitize=undefined 21

Log:
* Removed the previously deprecated type_info_wrapper.
* Added a way to access the current file name from the text file sink backend. \ 
The file name can be obtained with the get_current_file_name method.
* Bug fixes

Metaparse:
* Improved the implementation of BOOST_METAPARSE_STRING

Move:
* Improved experimental adaptive sort algorithm performance
* Activate BOOST_MOVE_FORCEINLINE

Optional:
* Added two new in-place constructors. They work similarly to emplace() \ 
functions: they initialize the contained value by perfect-forwarding the \ 
obtained arguments. One constructor always initializes the contained value, the \ 
other based on a boolean condition.
* Syntax o = {} now correctly un-initializes an optional, just like in std::optional.
* Fixed optional<optional<T>&> initialization. (12203)
* Optional constructors are sfinae-friendly. This fixes interaction with \ 
std::tuple. (12563)

Phoenix:
* Most of modules now support C++11 variadic templates.
* Fixed type deduction failure with result type.
* Suppress unused warnings.
* Fixed too few arguments error on binary math functions.
* Added workarounds for older compiler.

Python:
* Added (basic) support for C++11 (std::shared_ptr, std::unique_ptr)
* Incorporated an extension API to wrap NumPy
* Removed obsolete bits and pieces

Test:
* Boost.test v3.4 see the Change log section for more details.
* New feature: per_element and lexicographic modifiers of BOOST_TEST can also be \ 
applied to string comparison
* Breaking change: colons that appear in test case names are replaced with \ 
underscores
* Bug fixes

TypeIndex:
* Added runtime_cast to the library as an emulation of dynamic_cast. Thanks to \ 
Chris Glover for the implementation. See runtime_cast reference for more info.
* Internals of the CTTI were made more platform independant, due to change of \ 
the std::size_t type to unsigned int.

Units:
* Fix inspection warnings
* updated physico-chemical constants to CODATA 2014 values
* define biot correctly as 10 Ampere

Unordered:
* Fix an exception safety issue in assignment.
* Use std::allocator_traits where available, and support modern style rebind (12459).
* Add some allocator aware constructors.
* Use the hint iterator in emplace_hint.
* Fixed some warnings.

Log message:
Changes 1.60.0:
New Libraries
VMD:
Variadic Macro Data library, from Edward Diener.

Updated Libraries
Atomic:
* Enforced proper alignment of atomic<> storage. This should fix possible \ 
issues on platforms that support atomic operations on data units larger than the \ 
native word size. This may also change binary layout of user's data structures \ 
that have atomic<> members.
* Fixed compilation for PowerPC with IBM XL C++ compiler. Corrected memory \ 
barriers in PowerPC assembler.
* Fixed compilation with MSVC-8 for ARM.
* Fixed compilation with gcc 4.4 for x86-64, when 128-bit atomic operations were \ 
used. (10994)
* Optimized some gcc assembler blocks for x86/x86-64 to reduce the number of \ 
used registers. This may require binutils 2.10 or later.

Chrono - 2.0.5:
Fixes:
* 10778 VC14 CTP4 Atomic don't compile with boost::chrono durations which are \ 
not TriviallyCopyable
* 10840 Missing std:: qualifier for puts call in test_7868.cpp
* 10851 Missing std:: qualifier for puts call in time_point_output.cpp
* 10893 Minor doc typo in Boost.Chrono
* 10992 Chrono IO state savers inconsistent with Boost.IO state savers
* 10995 duration_put::put_value truncates fractional part
* 11006 Impossible to instantiate time_fmt_io_saver due to several errors.
* 11012 chrono_io v2 fail to compile with boost::chrono::duration< \ 
boost::rational<int> >

Container:
* Implemented Polymorphic Memory Resources.
* Add more BOOST_ASSERT checks to test preconditions in some operations (like \ 
pop_back, pop_front, back, front, etc.)
* Added C++11 back/front operations to basic_string.
Fixed bugs:
* Trac 11627: "small_vector<T,n>::swap() appears to be broken".
* Trac 11628: "small_vector<int,n> iterates over elements in \ 
destructor".
* Trac 11697: "Wrong initialization order in tuple copy-constructor".
* Trac 11698: "Missing return statement in static_storage_allocator".
* GitHub 29: Doc fixes for flap_map complexity requirements.
* GitHub 31: DL_SIZE_IMPL also dereference addr.

Context:
* 11603 typo in PPC32/MACH-O asm
* support for CYGWIN

Core:
* In symbol demangling tools, added support for gabi++ ABI implementation used \ 
in Android NDK.
* Added a new enable_if_has_type tool for performing SFINAE checks for presence \ 
of a nested type.

more...

Log message:
Changes 1.59.0:
New Libraries
Convert:
An extendible and configurable type-conversion framework, from Vladimir Batov.
Coroutine2:
(C++14) Coroutine library, from Oliver Kowalke.

Updated Libraries...

Log message:
Changes 1.56.0:
Modularization
Boost version control has migrated to a system using git submodules. This \ 
shouldn't make too much of a difference to users, although the directory \ 
structure is now a bit different.

Parts of some libraries have been moved into different modules, and several new \ 
modules have been extracted from existing code. All header paths should remain \ 
the same. The new modules are:

Assert:
Customizable assert macros. Maintained by Peter Dimov.
Core:
Core utilities used by other libraries, with minimal dependencies. Maintained by \ 
Peter Dimov, Glen Fernandes and Andrey Semashev.
Lexical_Cast:
General literal text conversions, such as an int represented a string, or \ 
vice-versa, from Kevlin Henney.
Throw_Exception:
A common infrastructure for throwing exceptions from Boost libraries, from Emil \ 
Dotchevski.
Winapi:
Windows API declarations without <windows.h>, for internal Boost use.
New Libraries
Align:
Memory alignment functions, allocators, and adaptors, from Glen Fernandes.
Type_Index:
Runtime/Compile time copyable type info, from Antony Polukhin.

Log message:
Install top-level index.html, index.htm redirects to it. Bump revision.

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.