Classify .manifest sources separately, add dependencies on them, and
pass them to the MS manifest tool to merge with linker-generated
manifest files.
Inspired-by: Gilles Khouzam <gillesk@microsoft.com>
The Makefile generators run tools with the current working directory set
to the subdirectory of the build tree for the each target. The Ninja
generator runs tools with the current working directory set to the top
of the build tree. Tell cmCommonTargetGenerator where the working
directory will be so it can compute proper relative paths.
Factor a GetLinkedTargetDirectories method out of
cmMakefileTargetGenerator::WriteTargetDependRules to compute the list of
directories associated with targets to which the current target links.
Teach the Makefile and Ninja generators to substitute for an <INCLUDES>
placeholder instead of putting -I in <FLAGS>. Update our values for
CMAKE_<LANG>_COMPILE_OBJECT,
CMAKE_<LANG>_CREATE_ASSEMBLY_SOURCE, and
CMAKE_<LANG>_CREATE_PREPROCESSED_SOURCE
to place <INCLUDES> just before <FLAGS>.