Hi, I am currently working on CMake and vcpkg [1].
One problem that I noticed is that APR 1.7.x (and APR-Util 1.6.x) install include files to INSTALL_PREFIX/include. While on other platforms include files installed to INSTALL_PREFIX/include/apr-1 (and apr-2 for apr-trunk). This problem is fixed in apr-trunk: CMake based builds install include files to INSTALL_PREFIX/include/apr-2. Installation to root include is not recommended by vcpkg. This can also introduce problems when apr-1 and apr-2 are installed side-by-side. I want to fix this in APR 1.7.x, but this could break users who rely that APR is installed to INSTALL_PREFIX/include. I see several options: 1. Just change to INSTALL_PREFIX/include/apr-1 2. Add a compile-time CMake option like APR_INSTALL_INCLUDE_TO_ROOT and enable it by default for apr 1.7.x, but disable for vcpkg builds. For me it seems that (2) is a safer way, but maybe it's overkill? [1] https://vcpkg.io/en/ -- Ivan Zhakov
