diff --git a/config/mh-aix b/config/mh-aix
deleted file mode 100644
index 32d5e321d1..0000000000
--- a/config/mh-aix
+++ /dev/null
@@ -1,5 +0,0 @@
-# X11 
-#X11_HOME_DIRECTORY=/usr/lpp/X11
-X11_HOME_DIRECTORY=/usr/unsupported
-X11_INCLUDE_FLAGS = -I$(X11_HOME_DIRECTORY)/include
-X11_LIB_FLAGS = -L$(X11_HOME_DIRECTORY)/lib
diff --git a/config/mh-sun b/config/mh-sun
deleted file mode 100644
index 4bdd377d26..0000000000
--- a/config/mh-sun
+++ /dev/null
@@ -1,4 +0,0 @@
-# X11 
-OPENWINHOME = /usr/openwin
-X11_INCLUDE_FLAGS = -I$(OPENWINHOME)/include
-X11_LIB_FLAGS = -L$(OPENWINHOME)/lib