[CMake] fix link with glpk

src/CMakeLists.txt

@@ -21,7 +21,7 @@ endif(USE_GLPK)
 ADD_LIBRARY(${LIBRARY_NAME} SHARED ${${LIBRARY_NAME}_SOURCES})
 
 if (USE_GLPK)
-  TARGET_LINK_LIBRARIES(${LIBRARY_NAME} ${GLPK_LIB})
+  TARGET_LINK_LIBRARIES(${LIBRARY_NAME} ${glpk_LIBRARY})
 endif(USE_GLPK)
 PKG_CONFIG_USE_DEPENDENCY(${LIBRARY_NAME} hpp-centroidal-dynamics)