diff --git a/cmake/FindGLPK.cmake b/cmake/FindGLPK.cmake
--- a/cmake/FindGLPK.cmake
+++ b/cmake/FindGLPK.cmake
@@ -1,13 +1,18 @@
+SET(GLPK_ROOT_DIR "" CACHE PATH "GLPK root directory")
+
 SET(GLPK_REGKEY "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Glpk;InstallPath]")
 GET_FILENAME_COMPONENT(GLPK_ROOT_PATH ${GLPK_REGKEY} ABSOLUTE)
 
 FIND_PATH(GLPK_INCLUDE_DIR
   glpk.h
-  PATHS ${GLPK_REGKEY}/include)
-
+  PATHS ${GLPK_REGKEY}/include
+  HINTS ${GLPK_ROOT_DIR}/include
+)
 FIND_LIBRARY(GLPK_LIBRARY
-  NAMES glpk
-  PATHS ${GLPK_REGKEY}/lib)
+  glpk
+  PATHS ${GLPK_REGKEY}/lib
+  HINTS ${GLPK_ROOT_DIR}/lib
+)
 
 INCLUDE(FindPackageHandleStandardArgs)
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(GLPK DEFAULT_MSG GLPK_LIBRARY GLPK_INCLUDE_DIR)