Use stage directory instead of intermediate build directory to provide
all the required symlinks generated by boost build
Signed-off-by: Andrei Lebedev <lebdron@gmail.com>
* making sure there is a leading <compileflags> even if CMAKE_CXX_FLAGS do not start with a whitespace
* making sure there is a leading <compileflags> even if CMAKE_CXX_FLAGS do not start with a whitespace
* full support for CXXFLAGS, CFLAGS and LDFLAGS throughout the boost-modular-build-helper
* [boost-modular-build-helper] Bump version and use CMAKE_* macros since the VCPKG_* macros are not passed in
* [boost-type-erasure] Depend on boost-thread even in UWP
