+# The following will compute the amount of parent dir to go
+# from include to lib. it works nicely with
+# OPENJPEG_INSTALL_LIB_DIR=lib
+# OPENJPEG_INSTALL_LIB_DIR=lib/
+# OPENJPEG_INSTALL_LIB_DIR=/lib
+# OPENJPEG_INSTALL_LIB_DIR=lib/gnu-linux-x64
+STRING(REPLACE "/" ";" relative_to_lib ${OPENJPEG_INSTALL_LIB_DIR})
+set(relative_parent "..")
+foreach( elem ${relative_to_lib})
+ set( relative_parent "${relative_parent}/.." )
+endforeach()
+
+IF(NOT OPENJPEG_INSTALL_SHARE_DIR)
+ SET(OPENJPEG_INSTALL_SHARE_DIR "share")
+ENDIF(NOT OPENJPEG_INSTALL_SHARE_DIR)
+