diff --git a/development/scons/SConstruct b/development/scons/SConstruct
index 640510cf21..82201b312b 100644
--- a/development/scons/SConstruct
+++ b/development/scons/SConstruct
@@ -547,8 +547,14 @@ else:
 
 if env.has_key('qt_lib_path') and env['qt_lib_path']:
     qt_lib_path = env.subst('$qt_lib_path')
-else:
+elif os.path.isdir(os.path.join(env.subst('$QTDIR'), 'lib')):
     qt_lib_path = env.subst('$QTDIR/lib')
+# this is the path for cygwin.
+elif os.path.idsir(os.path.join('/usr/lib/', frontend, 'lib')):
+    qt_lib_path = env.subst('/usr/lib/$frontend/lib')
+else:
+    print "Qt library directory is not found. Please specify it using qt_lib_path"
+    Exit(1)
 env.AppendUnique(LIBPATH = [qt_lib_path])
 # qt4 seems to be using pkg_config
 env.PrependENVPath('PKG_CONFIG_PATH', qt_lib_path)