diff --git a/build/cmake/CMakeLists.txt b/build/cmake/CMakeLists.txt
index 2649bd0..9ff5c9f 100644
--- a/build/cmake/CMakeLists.txt
+++ b/build/cmake/CMakeLists.txt
@@ -26,6 +26,7 @@ if (APPLE)
 endif ()
 option (GLEW_X11 "X11 mode" ON)
 option (GLEW_EGL "EGL mode" OFF)
+option (BUILD_SHARED_LIBS "install/link shared instead of static libs" ON)
 
 set (GLEW_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../..)
 
@@ -162,11 +163,9 @@ else()
 endif()
 
 set(targets_to_install "")
-if(NOT DEFINED BUILD_SHARED_LIBS OR BUILD_SHARED_LIBS)
+if(BUILD_SHARED_LIBS)
   list(APPEND targets_to_install glew)
-endif()
-
-if(NOT DEFINED BUILD_SHARED_LIBS OR NOT BUILD_SHARED_LIBS)
+else ()
   list(APPEND targets_to_install glew_s)
 endif()
 
@@ -184,7 +183,7 @@ if (BUILD_UTILS)
     list (APPEND GLEWINFO_SRC_FILES ${GLEW_DIR}/build/glewinfo.rc)
   endif ()
   add_executable (glewinfo ${GLEWINFO_SRC_FILES})
-  if(NOT DEFINED BUILD_SHARED_LIBS OR BUILD_SHARED_LIBS)
+  if(BUILD_SHARED_LIBS)
      target_link_libraries (glewinfo glew)
   else()
      target_link_libraries (glewinfo glew_s)
@@ -198,7 +197,7 @@ if (BUILD_UTILS)
     list (APPEND VISUALINFO_SRC_FILES ${GLEW_DIR}/build/visualinfo.rc)
   endif ()
   add_executable (visualinfo ${VISUALINFO_SRC_FILES})
-  if(NOT DEFINED BUILD_SHARED_LIBS OR BUILD_SHARED_LIBS)
+  if(BUILD_SHARED_LIBS)
      target_link_libraries (visualinfo glew)
   else()
      target_link_libraries (visualinfo glew_s)