New utility library

libraries/lib-utility/CMakeLists.txt

@@ -0,0 +1,25 @@
+#[[
+A small library defining various constants and utilities
+
+No dependencies on wxWidgets.  Very few if any symbols with linkage.
+
+One very important utility is finally() as defined in The C++ Programming
+Language, fourth edition, for describing ad-hoc RAII actions.
+
+Historically, MemoryX.h began as a wrapper of C++11 <memory>, which by itself
+did not yet provide std::make_unique.  That explains the name.
+
+Audacity now uses C++14, and yet, need arose for other anticipations of
+future standards, such as with optional.  It also provides other pervasively
+used utilities that don't correspond to things in the standard.
+
+]]#
+
+set( SOURCES
+   MemoryX.cpp
+   MemoryX.h
+   ModuleConstants.h
+)
+audacity_library( lib-utility "${SOURCES}" ""
+   "" ""
+)