Merge pull request boostorg#145 from hvdijk/x32

Fixes for x32 ABI.

Merge pull request boostorg#145 from hvdijk/x32

Fixes for x32 ABI.

Merge pull request boostorg#133 from Andreas-Krebbel/ibmz_fix

IBM Z: Fix fcontext routines

Merge pull request boostorg#133 from Andreas-Krebbel/ibmz_fix

IBM Z: Fix fcontext routines

Merge pull request boostorg#122 from janisozaur/patch-1

Fix compilation with MSVC for ARM

Merge pull request boostorg#122 from janisozaur/patch-1

Fix compilation with MSVC for ARM

documentation updated

Merge pull request boostorg#106 from shawnanastasio/ppc64_elfv2_fix

Fix ABI violation on ppc64 ELFv2, fixes boostorg#72

abi::__forced_unwind is only part of gnu's libstc++

Merge pull request boostorg#98 from tux3/fix_ios_i386_jump

Fix jump_i386_sysv_macho writing garbage to the x87 control word