Add option to build as static library

CMakeLists.txt

@@ -28,6 +28,7 @@ option(USE_INCLUDED_SSL "Use included libressl" ON)
 option(BUILD_FOR_CODECOVERAGE "Build for code coverage analysis" OFF)
 option(STRIP_BINARIES "Strip binaries (on non-apple)" ON)
 option(USE_PLATFORM_UUID "Use UUID geneator that is provided by the OS (always ON for Windows)" OFF)
+option(BUILD_AS_STATIC_LIB "Build as static lib (default=OFF)" OFF)
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
   # using GCC
@@ -108,10 +109,18 @@ endif()
 
 #########################################################
 # Shared library
-add_library(${PROJECT_NAME} SHARED ${SRCS_COMMON} ${HDRS_COMMON}
-  ${ACT_GENERATED_SOURCE}
-  ${VERSION_FILES_OUTPUTLOCATION}
+if (BUILD_AS_STATIC_LIB)
+    add_library(${PROJECT_NAME} STATIC ${SRCS_COMMON} ${HDRS_COMMON}
+    ${ACT_GENERATED_SOURCE}
+    ${VERSION_FILES_OUTPUTLOCATION}
 )
+else()
+    add_library(${PROJECT_NAME} SHARED ${SRCS_COMMON} ${HDRS_COMMON}
+    ${ACT_GENERATED_SOURCE}
+    ${VERSION_FILES_OUTPUTLOCATION}
+)
+endif()
+
 SOURCE_GROUP("Source Files\\Autogenerated" FILES ${ACT_GENERATED_SOURCE})