$OpenBSD: patch-CMakeLists_txt,v 1.1.1.1 2013/10/29 00:01:50 sthen Exp $
--- CMakeLists.txt.orig	Tue Apr  2 18:03:46 2013
+++ CMakeLists.txt	Tue Apr  2 18:04:07 2013
@@ -95,7 +95,10 @@ endif()
 # Install directories
 
 string(TOLOWER ${PROJECT_NAME} projectname)
-set(OPENJPEG_INSTALL_SUBDIR "${projectname}-${OPENJPEG_VERSION_MAJOR}.${OPENJPEG_VERSION_MINOR}")
+
+if(NOT OPENJPEG_INSTALL_SUBDIR)
+  set(OPENJPEG_INSTALL_SUBDIR "${projectname}-${OPENJPEG_VERSION_MAJOR}.${OPENJPEG_VERSION_MINOR}")
+endif()
 
 if(NOT OPENJPEG_INSTALL_BIN_DIR)
   set(OPENJPEG_INSTALL_BIN_DIR "bin")
