--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -430,6 +430,14 @@ include_directories("${CMAKE_CURRENT_BINARY_DIR}/translations")
 
 add_subdirectory(external)
 
+# Final setup for miniupnpc
+if(UPNP_STATIC OR IOS)
+  add_definitions("-DUPNP_STATIC")
+else()
+  add_definitions("-DUPNP_DYNAMIC")
+  include_directories(${UPNP_INCLUDE})
+endif()
+
 # Final setup for libunbound
 include_directories(${UNBOUND_INCLUDE})
 link_directories(${UNBOUND_LIBRARY_DIRS})
diff --git a/src/p2p/net_node.inl b/src/p2p/net_node.inl
index 9b21705e..76340a22 100644
--- a/src/p2p/net_node.inl
+++ b/src/p2p/net_node.inl
@@ -49,9 +49,16 @@
 #include "storages/levin_abstract_invoke2.h"
 #include "cryptonote_core/cryptonote_core.h"
 
-#include <miniupnp/miniupnpc/miniupnpc.h>
-#include <miniupnp/miniupnpc/upnpcommands.h>
-#include <miniupnp/miniupnpc/upnperrors.h>
+// We have to look for miniupnpc headers in different places, dependent on if its compiled or external
+#ifdef UPNP_STATIC
+  #include <miniupnp/miniupnpc/miniupnpc.h>
+  #include <miniupnp/miniupnpc/upnpcommands.h>
+  #include <miniupnp/miniupnpc/upnperrors.h>
+#else
+  #include "miniupnpc.h"
+  #include "upnpcommands.h"
+  #include "upnperrors.h"
+#endif
 
 #undef MONERO_DEFAULT_LOG_CATEGORY
 #define MONERO_DEFAULT_LOG_CATEGORY "net.p2p"
-- 
2.17.0

--- a/external/CMakeLists.txt	2018-10-10 13:13:55.759414180 +0200
+++ b/external/CMakeLists.txt	2018-10-10 13:19:33.363411827 +0200
@@ -34,22 +34,46 @@
 # We always compile if we are building statically to reduce static dependency issues...
 # ...except for FreeBSD, because FreeBSD is a special case that doesn't play well with
 # others.
+if(NOT IOS)
+    find_package(Miniupnpc QUIET)
+endif()
 
-find_package(Miniupnpc REQUIRED)
-
-message(STATUS "Using in-tree miniupnpc")
-add_subdirectory(miniupnp/miniupnpc)
-set_property(TARGET libminiupnpc-static PROPERTY FOLDER "external")
-if(MSVC)
-  set_property(TARGET libminiupnpc-static APPEND_STRING PROPERTY COMPILE_FLAGS " -wd4244 -wd4267")
-elseif(NOT MSVC)
-  set_property(TARGET libminiupnpc-static APPEND_STRING PROPERTY COMPILE_FLAGS " -Wno-undef -Wno-unused-result -Wno-unused-value")
+# If we have the correct shared version and we're not building static, use it
+if(STATIC OR IOS)
+ set(USE_SHARED_MINIUPNPC false)
+elseif(MINIUPNP_FOUND AND MINIUPNPC_VERSION_1_7_OR_HIGHER)
+ set(USE_SHARED_MINIUPNPC true)
 endif()
+
+
+if(USE_SHARED_MINIUPNPC)
+  message(STATUS "Using shared miniupnpc found at ${MINIUPNP_INCLUDE_DIR}")
+
+  set(UPNP_STATIC false PARENT_SCOPE)
+  set(UPNP_INCLUDE ${MINIUPNP_INCLUDE_DIR} PARENT_SCOPE)
+  set(UPNP_LIBRARIES ${MINIUPNP_LIBRARY} PARENT_SCOPE)
+else()
+  if(STATIC)
+    message(STATUS "Using miniupnpc from local source tree for static build")
+  else()
+    message(STATUS "Using miniupnpc from local source tree (/external/miniupnp/miniupnpc)")
+  endif()
+  add_subdirectory(miniupnp/miniupnpc)
+
+  set_property(TARGET libminiupnpc-static PROPERTY FOLDER "external")
+  if(MSVC)
+    set_property(TARGET libminiupnpc-static APPEND_STRING PROPERTY COMPILE_FLAGS " -wd4244 -wd4267")
+  elseif(NOT MSVC)
+    set_property(TARGET libminiupnpc-static APPEND_STRING PROPERTY COMPILE_FLAGS " -Wno-undef -Wno-unused-result -Wno-unused-value")
+  endif()
+
 if(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
 	set_property(TARGET libminiupnpc-static APPEND_STRING PROPERTY COMPILE_FLAGS " -D_NETBSD_SOURCE")
 endif()
 
-set(UPNP_LIBRARIES "libminiupnpc-static" PARENT_SCOPE)
+  set(UPNP_STATIC true PARENT_SCOPE)
+  set(UPNP_LIBRARIES "libminiupnpc-static" PARENT_SCOPE)
+endif()
 
 find_package(Unbound)