--- trunk/base/generic/solver/SConscript	2007/05/20 16:58:44	1435
+++ trunk/base/generic/solver/SConscript	2007/05/21 09:39:28	1436
@@ -38,7 +38,7 @@
 import glob
 
 if libascend_env.get('CAN_INSTALL'):
-	installdir = libascend_env['INSTALL_ROOT']+libascend_env['INSTALL_INCLUDE']+'/solver'
+	installdir = Dir(libascend_env.subst("$INSTALL_ROOT$INSTALL_INCLUDE/solver"))
 
 	headers = glob.glob("*.h")
 	libascend_env.InstallHeader(installdir,headers)