cmake - ad hoc locating of external library and includes. EG libyaml-cpp.a

CMakeLists.txt

#
# FIND libyaml-cpp.a
#
find_library(LIBYAML libyaml-cpp.a)
find_path(LIBYAML_INC yaml-cpp/yaml.h)
if(NOT LIBYAML)
    # FATAL_ERROR will fail the CMakeLists.txt processing
    message(FATAL_ERROR "Unable to find libyaml")
endif()
if(NOT LIBYAML_INC)
    message(FATAL_ERROR "unable to find libyaml includes")
endif()
message(STATUS "Found LIBYAML:\n\t" ${LIBYAML})
message(STATUS "found libyaml includes:\n\t" ${LIBYAML_INC})

# We can now refer to the library path as ${LIBYAML_INC} 
# eg
include_directories(${LIBYAML_INC})

# We can refer to the library as ${LIBYAML} in the target_link_libraries call 
# eg
add_executable(resman ${CPPS} ${HPPS}}
target_link_libraries(resman ${LIBYAML})