Merge pull request #1032 from AlexisTM/feature/prevent_usage_of_boost

Prevents the looking for boost if built without it for dependents

Author: redboltz

msgpack-config.cmake.in

@@ -2,7 +2,9 @@
 
 include(CMakeFindDependencyMacro)
 
-find_dependency(Boost REQUIRED)
+IF (@MSGPACK_USE_BOOST@)
+    find_dependency(Boost REQUIRED)
+ENDIF ()
 
 include("${CMAKE_CURRENT_LIST_DIR}/msgpackc-cxx-targets.cmake")