Update CMake and split development and library

CMakeLists.txt

@@ -1,31 +1,42 @@
 cmake_minimum_required(VERSION 3.0.0)
-project(LwLibPROJECT VERSION 0.1.0)
 
-include(CTest)
-enable_testing()
+# Setup project
+project(LwLibPROJECT)
 
-add_executable(${PROJECT_NAME}
-    lwow/src/lwow/lwow.c
-    lwow/src/system/lwow_ll_win32.c
-    lwow/src/system/lwow_sys_win32.c
-    lwow/src/devices/lwow_device_ds18x20.c
-    snippets/scan_devices.c
-    dev/VisualStudio/main.c
+# -------------------------------------------------
+# This CMakeLists.txt is used only if it is a top-level file.
+# Purpose of it is to be able to compile project in standalone way only
+#
+# When library sources are to be included in another project
+# user shall use /lwow/CMakeLists.txt instead
+if (NOT PROJECT_IS_TOP_LEVEL)
+    message(FATAL_ERROR "This CMakeLists.txt can only be used as top-level. Use /lwow/CMakeLists.txt for library include purpose")
+endif()
+
+# Set as executable
+add_executable(${PROJECT_NAME})
+
+# Add key executable block
+target_sources(${PROJECT_NAME} PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}/dev/VisualStudio/main.c
     )
 
-target_include_directories(${PROJECT_NAME} PRIVATE
-    dev/VisualStudio
-    lwow/src/include
-    snippets/include
+# Add key include paths
+target_include_directories(${PROJECT_NAME} PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+    ${CMAKE_CURRENT_LIST_DIR}/dev/VisualStudio
     )
 
-target_compile_definitions(${PROJECT_NAME} PRIVATE
+# Compilation definition information
+target_compile_definitions(${PROJECT_NAME} PUBLIC
     WIN32
     _DEBUG
     CONSOLE
-    TEST_CONSOLE_123
+    LWOW_DEV
     )
 
-set(CPACK_PROJECT_NAME ${PROJECT_NAME})
-set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
-include(CPack)
+# Add subdir with lwow and link to the project
+add_subdirectory("lwow")
+target_link_libraries(${PROJECT_NAME} lwow)
+add_subdirectory("snippets")
+target_link_libraries(${PROJECT_NAME} lwow_snippets)

lwow/CMakeLists.txt

@@ -0,0 +1,33 @@
+cmake_minimum_required(VERSION 3.13)
+
+# Debug message
+message("LWOW: Entering lib source CMakeLists.txt")
+
+# Set library name
+set(LWOW_LIB_NAME "lwow")
+
+# Check definitions of some key things
+if(NOT DEFINED LWOW_SYS_ARCH)
+    message("LWOW: LWOW_SYS_ARCH not defined. Using default one: \"win32\"")
+    set(LWOW_SYS_ARCH "win32")
+endif()
+if(NOT DEFINED LWOW_LL_ARCH)
+    message("LWOW: LWOW_LL_ARCH not defined. Using default one: \"win32\"")
+    set(LWOW_LL_ARCH "win32")
+endif()
+
+# Register library to the system
+add_library(${LWOW_LIB_NAME} INTERFACE)
+
+# Setup generic source files
+target_sources(${LWOW_LIB_NAME} PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}/src/lwow/lwow.c
+    ${CMAKE_CURRENT_LIST_DIR}/src/system/lwow_sys_${LWOW_SYS_ARCH}.c
+    ${CMAKE_CURRENT_LIST_DIR}/src/system/lwow_ll_${LWOW_LL_ARCH}.c
+    ${CMAKE_CURRENT_LIST_DIR}/src/devices/lwow_device_ds18x20.c
+    )
+
+# Setup include directories
+target_include_directories(${LWOW_LIB_NAME} INTERFACE
+    ${CMAKE_CURRENT_LIST_DIR}/src/include
+    )

snippets/CMakeLists.txt

@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.13)
+
+# Debug message
+message("LWOW SNIPPETS: Entering lib source CMakeLists.txt")
+
+# Set library name
+set(LWOW_SNIPPETS_LIB_NAME "lwow_snippets")
+
+# Register library to the system
+add_library(${LWOW_SNIPPETS_LIB_NAME} INTERFACE)
+
+# Setup generic source files
+target_sources(${LWOW_SNIPPETS_LIB_NAME} PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}/scan_devices.c
+    )
+
+# Setup include directories
+target_include_directories(${LWOW_SNIPPETS_LIB_NAME} INTERFACE
+    ${CMAKE_CURRENT_LIST_DIR}/include
+    )