All the individual executables are marked EXCLUDE_FROM_ALL, but the
added Tools custom target is marked ALL. The only visible effect of this
is that ConvertColorCursors does not get built by default, since all the
other tools are dependencies for the Resources or Tools targets, which
are both built by default. Otherwise, the benefit is simply to keep the
dependency tree clean. Only three targets are built by default:
Aerofoil, its resources and the conversion tools. Everything else is
built to satisfy dependencies.
Downgrades c++11-narrowing to a warning when compiling with Clang. A
better solution would be to fix the error, but this at least brings
Clang in line with the more permissive GCC, which treats this as a
warning by default.
Also add stddef.h include to GpRenderedGlyphMetrics.h to make size_t
visible. Does MSVC provide size_t by default, or via stdint.h? This
prevents compilation and I can't see how this would have compiled on
Windows otherwise.
The BUILD_INTERFACE generator expression isn't actually useful as we
don't use export(). CMAKE_CURRENT_SOURCE_DIR is also unnecessary as
CMake treats relative paths as relative to the current source directory
(or the current binary directory for outputs).
