[drogon] build failure

[rustatian]

Host Environment

• OS: ArchLinux
• Compiler: gcc (GCC) 10.1.0

To Reproduce
Steps to reproduce the behavior:
./vcpkg install drogon

Failure logs

Computing installation plan...
The following packages will be built and installed:
    drogon[core]:x64-linux
Detecting compiler hash for triplet x64-linux...
Starting package 1/1: drogon:x64-linux
Building package drogon[core]:x64-linux...
Could not locate cached archive: /home/valery/.cache/vcpkg/archives/81/81616a4c99a9d142fa1a9c55acfe4bfe0e8fc4e1.zip
-- Using cached /home/valery/Cache/vcpkg/downloads/an-tao-drogon-v1.0.0-beta18.tar.gz
-- Cleaning sources at /home/valery/Cache/vcpkg/buildtrees/drogon/src/0.0-beta18-aa4dfb0262.clean. Use --editable to skip cleaning for the packages you specify.
-- Extracting source /home/valery/Cache/vcpkg/downloads/an-tao-drogon-v1.0.0-beta18.tar.gz
-- Applying patch vcpkg.patch
-- Applying patch drogon_ctl_install.patch
-- Using source at /home/valery/Cache/vcpkg/buildtrees/drogon/src/0.0-beta18-aa4dfb0262.clean
-- Configuring x64-linux-dbg
-- Configuring x64-linux-rel
CMake Error at scripts/cmake/vcpkg_execute_required_process.cmake:72 (message):
    Command failed: /home/valery/Cache/vcpkg/downloads/tools/cmake-3.17.2-linux/cmake-3.17.2-Linux-x86_64/bin/cmake /home/valery/Cache/vcpkg/buildtrees/drogon/src/0.0-beta18-aa4dfb0262.clean -DBUILD_EXAMPLES=OFF -DCMAKE_MAKE_PROGRAM=/home/valery/Cache/vcpkg/downloads/tools/ninja-1.10.0-linux/ninja -DCMAKE_SYSTEM_NAME=Linux -DBUILD_SHARED_LIBS=OFF -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=/home/valery/Cache/vcpkg/scripts/toolchains/linux.cmake -DVCPKG_TARGET_TRIPLET=x64-linux -DVCPKG_SET_CHARSET_FLAG=ON -DVCPKG_PLATFORM_TOOLSET=external -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY=ON -DCMAKE_INSTALL_SYSTEM_RUNTIME_LIBS_SKIP=TRUE -DCMAKE_VERBOSE_MAKEFILE=ON -DVCPKG_APPLOCAL_DEPS=OFF -DCMAKE_TOOLCHAIN_FILE=/home/valery/Cache/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_ERROR_ON_ABSOLUTE_INSTALL_DESTINATION=ON -DVCPKG_CXX_FLAGS= -DVCPKG_CXX_FLAGS_RELEASE= -DVCPKG_CXX_FLAGS_DEBUG= -DVCPKG_C_FLAGS= -DVCPKG_C_FLAGS_RELEASE= -DVCPKG_C_FLAGS_DEBUG= -DVCPKG_CRT_LINKAGE=dynamic -DVCPKG_LINKER_FLAGS= -DVCPKG_TARGET_ARCHITECTURE=x64 -DCMAKE_INSTALL_LIBDIR:STRING=lib -DCMAKE_INSTALL_BINDIR:STRING=bin -D_VCPKG_ROOT_DIR=/home/valery/Cache/vcpkg -D_VCPKG_INSTALLED_DIR=/home/valery/Cache/vcpkg/installed -DVCPKG_MANIFEST_INSTALL=OFF -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/home/valery/Cache/vcpkg/packages/drogon_x64-linux
    Working Directory: /home/valery/Cache/vcpkg/buildtrees/drogon/x64-linux-rel
    Error code: 1
    See logs for more information:
      /home/valery/Cache/vcpkg/buildtrees/drogon/config-x64-linux-rel-out.log
      /home/valery/Cache/vcpkg/buildtrees/drogon/config-x64-linux-rel-err.log

Call Stack (most recent call first):
  scripts/cmake/vcpkg_configure_cmake.cmake:319 (vcpkg_execute_required_process)
  ports/drogon/portfile.cmake:12 (vcpkg_configure_cmake)
  scripts/ports.cmake:79 (include)


Error: Building package drogon:x64-linux failed with: BUILD_FAILED
Please ensure you're using the latest portfiles with `.\vcpkg update`, then
submit an issue at https://github.com/Microsoft/vcpkg/issues including:
  Package: drogon:x64-linux
  Vcpkg version: 2020.06.15-unknownhash

In the config-x64-linux-rel-err.log

CMake Error at cmake_modules/Findpg.cmake:16 (set_target_properties):
  Property INTERFACE_LINK_LIBRARIES may not contain link-type keyword
  "optimized".  The INTERFACE_LINK_LIBRARIES property may contain
  configuration-sensitive generator-expressions which may be used to specify
  per-configuration rules.
Call Stack (most recent call first):
  /home/valery/Cache/vcpkg/scripts/buildsystems/vcpkg.cmake:455 (_find_package)
  CMakeLists.txt:164 (find_package

[yay]

Same issue on macOS Catalina 10.15.6, Xcode 11.6.

[yay]

I created a related issue here: drogonframework/drogon#536