Update to add Cuda to build system

src/CMakeLists.txt

@@ -1,17 +1,16 @@
-project(${CMAKE_PROJECT_NAME}_lib)
+project(${CMAKE_PROJECT_NAME}_lib CUDA CXX)
 
 set(HEADER_FILES
+    ./test.h
 )
 set(SOURCE_FILES
+    ./test.cpp
 )
 
-if (EXISTS ${SOURCE_FILES})
-    # The library contains header and source files.
-    add_library(${CMAKE_PROJECT_NAME}_lib STATIC
-        ${SOURCE_FILES}
-        ${HEADER_FILES}
-    )
-else()
-    # The library only contains header files.
-    add_library(${CMAKE_PROJECT_NAME}_lib INTERFACE)
-endif()
+# The library contains header and source files.
+add_library(${CMAKE_PROJECT_NAME}_lib
+    ${SOURCE_FILES}
+    ${HEADER_FILES}
+)
+
+target_include_directories(${CMAKE_PROJECT_NAME}_lib PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

src/test.cpp

@@ -0,0 +1,4 @@
+#include "test.h"
+#include <iostream>
+
+void test_hello() { std::cout << "Hello!"; }

src/test.h

@@ -0,0 +1,2 @@
+#include <iostream>
+void test_hello();