+2015-07-16 Keith Marshall <keithmarshall@users.sourceforge.net>
+
+ Incorporate build system updates from w32api package.
+
+ * Makefile.in (NTDDI_VERSION): Set default to NTDDI_WINNT4.
+ (mkinstalldirs, INSTALL_DATA): Reimplement to support $(call ...)
+ (install-strip, uninstall): New make command goals; implement them.
+ (mingwrt-dist-staged): Use 'install-strip' in this rule; hence...
+ (devdist, dlldist): ...these have no need to strip explicitly.
+ (INSTALL_SUB_HEADERS): New macro; implement it, and use it...
+ (install-mingwrt-headers): ...here.
+
+2015-07-14 Keith Marshall <keithmarshall@users.sourceforge.net>
+
+ Adapt platform feature checks to NTDDI_VERSION conventions.
+
+ * include/_mingw.h: Assert copyright; include w32api.h
+ (UNICODE, _UNICODE): Factor out consistency checks; relocate them
+ to w32api/include/w32api.h, whence they remain in effect.
+ (_EXTERN_C, _BEGIN_C_DECLS, _END_C_DECLS): Likewise.
+
+2015-07-14 Keith Marshall <keithmarshall@users.sourceforge.net>
+
+ Correct mismatched #if/#endif from preceding commit.
+
+ * include/_mingw.h (#pragma GCC system_header)
+ [__GNUC__ >= 3 && ! defined __PCC__]: Merge these conditions, thus
+ correcting for inadvertent removal of matching #endif introduced by
+ preceding 2015-06-19 commit.
+
+2015-06-19 Keith Marshall <keithmarshall@users.sourceforge.net>
+
+ Define symbolic names for alternative Microsoft runtime DLLs.
+
+ * include/msvcrtver.h: New file; it assigns a value for...
+ (__MSVCRT_VERSION__): ...this, making its default equivalent to...
+ (__MSVCR60_DLL): ...this new manifest constant, with each of...
+ (__MSVCR61_DLL, __MSVCR70_DLL, __MSVCR71_DLL, __MSVCR80_DLL)
+ (__MSVCR90_DLL, __MSVCR100_DLL, __MSVCR110_DLL, __MSVCR120_DLL):
+ ...these also defined, as user assignable alternatives.
+
+ * include/_mingw.h (__MSVCRT_VERSION__): Use include/msvcrtver.h
+ to establish its default value.
+
+2015-06-18 Keith Marshall <keithmarshall@users.sourceforge.net>
+
+ Track dependencies on modified system header files.
+
+ * Makefile.in (DEPFLAGS): Use -MD, rather than -MMD.
+
2015-06-18 Keith Marshall <keithmarshall@users.sourceforge.net>
Correct an anomaly in stage 1 only build procedure.