Upstream status: https://github.com/OpenBoardView/OpenBoardView/pull/281

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 452dfa9..e30c3cf 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -206,13 +206,15 @@ endif()
 add_definitions(-DSTBI_FAILURE_USERMSG)
 
 ## mpc - Micro Parser Combinators ##
-execute_process(
-	COMMAND git submodule update --init src/mpc
-	WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
-)
-
-add_library(mpc STATIC "mpc/mpc.c")
-
+pkg_check_modules(MPC QUIET mpc)
+if(NOT MPC_FOUND)
+	execute_process(
+		COMMAND git submodule update --init src/mpc
+		WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+    	)
+        add_library(mpc STATIC "mpc/mpc.c")
+        include_directories(${CMAKE_CURRENT_SOURCE_DIR}/mpc)
+endif()
 
 ## OpenBoardView ##
 add_subdirectory(openboardview)
diff --git a/src/openboardview/FileFormats/GenCADFile.h b/src/openboardview/FileFormats/GenCADFile.h
index 1ccf8df..c57f7ff 100644
--- a/src/openboardview/FileFormats/GenCADFile.h
+++ b/src/openboardview/FileFormats/GenCADFile.h
@@ -5,7 +5,7 @@
 
 #include "build-generated/GenCADFileGrammar.h"
 
-#include "mpc/mpc.h"
+#include "mpc.h"
 
 #include <map>
 #include <string>