Adding a configurable string to set the Universal include library to …

…be used

CMakeLists.txt

@@ -53,6 +53,7 @@ option(STARTER_USE_FOLDERS "Enable solution folders in Visual Studio, disable fo
 if (STARTER_USE_FOLDERS) 
   set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 endif()
+set(STARTER_UNIVERSAL_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/ext/stillwater-sc/universal/include" CACHE PATH "Directory path to the include directoryof the desired Universal library")
 
 ####
 # macro to read all cpp files in a directory

src/apps/example/CMakeLists.txt

@@ -3,7 +3,7 @@ set(app_name example)
 project(${app_name} CXX)
 
 # Universal is a C++ header-only library, so we do not need to build anything
-include_directories(${STARTER_ROOT_DIR}/ext/stillwater-sc/universal/include)
+include_directories(${STARTER_UNIVERSAL_INCLUDE_DIR})
 
 # source files that make up the command
 set(SOURCE_FILES

test/example/CMakeLists.txt

@@ -1,7 +1,7 @@
 file (GLOB SRCS "./*.cpp")
 
 # Universal is a C++ header-only library, so we do not need to build anything
-include_directories(${STARTER_ROOT_DIR}/ext/stillwater-sc/universal/include)
+include_directories(${STARTER_UNIVERSAL_INCLUDE_DIR})
 
 # create a ctest target for every individual cpp file in this directory
 compile_all("true" "testprefix" "Tests/example" "${SRCS}")