if (WIN32)
   add_library(sliprock sliprock_windows.c)
else()
   add_library(sliprock sliprock.c)
endif()

if (WIN32)
   add_library(sliprock_static STATIC sliprock_windows.c)
   add_library(sliprock SHARED sliprock_windows.c)
else()
   add_library(sliprock_static STATIC sliprock.c)
   add_library(sliprock SHARED sliprock.c)
endif()

Build both static and shared libraries
Build both static and shared libraries
