Read db connection parameters from a yml file.

cmake/Modules/FindYamlCpp.cmake

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+# Locate yaml-cpp
+#
+# This module defines
+# YAMLCPP_FOUND, if false, do not try to link to yaml-cpp
+# YAMLCPP_LIBRARY, where to find yaml-cpp
+# YAMLCPP_INCLUDE_DIR, where to find yaml.h
+#
+# By default, the dynamic libraries of yaml-cpp will be found. To find the static ones instead,
+# you must set the YAMLCPP_STATIC_LIBRARY variable to TRUE before calling find_package(YamlCpp ...).
+#
+# If yaml-cpp is not installed in a standard path, you can use the YAMLCPP_DIR CMake variable
+# to tell CMake where yaml-cpp is.
+
+# attempt to find static library first if this is set
+if(YAMLCPP_STATIC_LIBRARY)
+set(YAMLCPP_STATIC libyaml-cpp.a)
+endif()
+
+# find the yaml-cpp include directory
+find_path(YAMLCPP_INCLUDE_DIR yaml-cpp/yaml.h
+PATH_SUFFIXES include
+PATHS
+~/Library/Frameworks/yaml-cpp/include/
+/Library/Frameworks/yaml-cpp/include/
+/usr/local/include/
+/usr/include/
+/sw/yaml-cpp/ # Fink
+/opt/local/yaml-cpp/ # DarwinPorts
+/opt/csw/yaml-cpp/ # Blastwave
+/opt/yaml-cpp/
+${YAMLCPP_DIR}/include/)
+
+# find the yaml-cpp library
+find_library(YAMLCPP_LIBRARY
+NAMES ${YAMLCPP_STATIC} yaml-cpp
+PATH_SUFFIXES lib64 lib
+PATHS ~/Library/Frameworks
+/Library/Frameworks
+/usr/local
+/usr
+/sw
+/opt/local
+/opt/csw
+/opt
+${YAMLCPP_DIR}/lib)
+
+# handle the QUIETLY and REQUIRED arguments and set YAMLCPP_FOUND to TRUE if all listed variables are TRUE
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(YAMLCPP DEFAULT_MSG YAMLCPP_INCLUDE_DIR YAMLCPP_LIBRARY)
+mark_as_advanced(YAMLCPP_INCLUDE_DIR YAMLCPP_LIBRARY)