* Eliminate warnings detected by Cppcheck in cord de[_win].
* Fix 'comparison of non-null parameter is always false' warning (Clang).
* Fix 'CORD_iter5 unused result' code defect in cordxtra.
+* Fix 'GC_generic_malloc_inner_ignore_off_page not used' compiler warning.
* Fix 'implicit declaration of vsnprintf' GCC warning (if strict ANSI mode).
* Fix 'signed-to-bigger-unsigned value assignment' in GC_init_size_map.
* Fix 'signed-to-bigger-unsigned value assignment' warning for hb_map.
* Fix 'visibility attribute not supported' GCC warning (IBM AIX).
* Fix CMake warning about CMP0054 by unquoting instances of HOST.
* Fix Cygwin64 build.
+* Fix GC_REALLOC to call GC_FREE if new size is zero and pointer is non-NULL.
* Fix Makefile.direct for Cygwin.
* Fix __alloc_size__ availability detection (Clang).
* Fix abort message in GC_move_long_link.
* Revert "Move asm machine-dependent files to 'src' folder" (partly).
* Support Android API level 21.
* Update compiler options in gc.mak (Win32).
+* Use mmap instead of sbrk (Hurd).
* Workaround 'comparison is always false' GCC warning in GC_FAST_MALLOC_GRANS.
* Workaround 'identical expr on both sides of bitwise op' warning.
* Workaround Linux NTPL lock elision bug.
* Fix unresolved vsnprintf in misc.c and snprintf in cordtest (DJGPP, VC).
* Fix various spelling errors.
* Fix vsprintf_args initialization/cleanup in CORD_vsprintf for EMX.
+* Regenerate configure files using official libtool release (v2.4.2).
* Remove documentation about obsolete GC_REDIRECT_TO_LOCAL.
* Skip GC_DS_PER_OBJECT objects with negative descriptor in GC_mark_from.
* windows-untested: Fix paths to msvc_dbg.c/h.