Replace LibXML2 with Yocto Built LibXML2 - cmake

Question

I have been working on this all day, but I think I finally have my base case figured out. I am using a GitHub repo DBCPPP in my application. This repo relies on LibXml2, to ensure it is available LibXml2 is included as a submodule and build with dbcppp through a series of CMakeLists.txt. I am trying to resolve an issue with my build in which the Linux kernel and the DBCPPP recipe are both attempting to install /usr/lib/libxml2.so.2.9.10. I have an open question about it here.
My potential solution is to prevent DBCPPP from creating the libxml2.so.2.9.10 file, and instead build using the libxml2.so.2.9.10 file created by Yocto.
So far my CMakeLists.txt contains:
cmake_minimum_required(VERSION 3.12)
project("libdbcppp" VERSION 0.1.0)
set(LIBXML2_INCLUDE_DIR /mnt/WorkDrive/Documents/EVCC_Application/build-fb/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/libxml2/2.9.10-r0/libxml2-2.9.10/include)
set(LIBXML2_LIBRARIES /mnt/WorkDrive/Documents/EVCC_Application/build-fb/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/libxml2/2.9.10-r0/image/usr/lib)
#include(FindPkgConfig)
#include(FindLibXml2 REQUIRED)
find_package(LibXml2 REQUIRED)
option(build_tests "Build tests" ON)
option(build_examples "Build examples" ON)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_STATIC_LIBRARY_PREFIX "")
set(CMAKE_SHARED_LIBRARY_PREFIX "")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
add_definitions("/bigobj")
endif()
include_directories("include")
include_directories("third-party/libxmlmm/libxmlmm")
include_directories("/mnt/WorkDrive/Documents/EVCC_Application/build-fb/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/boost")
include_directories("/mnt/WorkDrive/Documents/EVCC_Application/build-fb/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/libxml2/2.9.10-r0/libxml2-2.9.10/include")
include_directories("third-party/cxxopts/include")
file(GLOB libxmlmm_header
"third-party/libxmlmm/libxmlmm/*.h"
)
file(GLOB libxmlmm_src
"third-party/libxmlmm/libxmlmm/*.cpp"
)
add_library(libxmlmm SHARED "")
target_link_libraries(libxmlmm LibXml2::LibXml2)
target_sources("libxmlmm"
PRIVATE ${libxmlmm_header}
PRIVATE ${libxmlmm_src}
)
install(TARGETS "libxmlmm" EXPORT ${PROJECT_NAME}Targets DESTINATION ${CMAKE_INSTALL_LIBDIR})
install(
DIRECTORY "libxmlmm"
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libxmlmm
FILES_MATCHING PATTERN "*.h")
set(CMAKE_STATIC_LIBRARY_PREFIX "")
set(CMAKE_SHARED_LIBRARY_PREFIX "")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
CONFIGURE_FILE(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
IMMEDIATE #ONLY
)
ADD_CUSTOM_TARGET(uninstall
"${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
)
Edit: I am updating my question with my latest CMakeLists.txt. I am integrating this with a Yocto project. This appears to work within Ubuntu but when I added it to the Yocto build I get the error.
error: /mnt/WorkDrive/Documents/MAIN_Application/build-fb/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/libxml2/2.9.10-r0/image/usr/lib: read: Is a directory
| collect2: error: ld returned 1 exit status
| ninja: build stopped: subcommand failed.
| WARNING: exit code 1 from a shell command.