Update CMakeLists.txt

CMakeLists.txt

@@ -32,12 +32,20 @@ include_directories(${CMAKE_CURRENT_LIST_DIR}/include)
 
 aux_source_directory(${CMAKE_CURRENT_LIST_DIR}/src POCKETPY_SRC)
 
-option(BUILD_EXE "Build executable" ON)
+option(PK_BUILD_EXE "Build executable" OFF)
+option(PK_BUILD_SHARED_LIB "Build shared library" OFF)
+option(PK_BUILD_STATIC_LIB "Build static library" OFF)
 
-if(BUILD_EXE)
+if(NOT PK_BUILD_EXE AND NOT PK_BUILD_SHARED_LIB AND NOT PK_BUILD_STATIC_LIB)
+    set(PK_BUILD_EXE ON)
+
+if(PK_BUILD_EXE)
     message(STATUS "Building executable")
     add_executable(${PROJECT_NAME} ${POCKETPY_SRC} src2/main.cpp)
-else()
-    message(STATUS "Building library")
+elseif(PK_BUILD_SHARED_LIB)
+    message(STATUS "Building shared library")
     add_library(${PROJECT_NAME} SHARED ${POCKETPY_SRC} src2/lib.cpp)
+elseif(PK_BUILD_STATIC_LIB)
+    message(STATUS "Building static library")
+    add_library(${PROJECT_NAME} STATIC ${POCKETPY_SRC} src2/lib.cpp)
 endif()