diff --git a/makefile b/makefile
index dc48830b..819cafb1 100644
--- a/makefile
+++ b/makefile
@@ -354,10 +354,6 @@ ifeq (${WIN32},)  #*nix Environments (&& cygwin)
         INCPATH += $(foreach dir,$(wildcard /usr/local/Cellar/*/*),$(dir)/include)
         LIBPATH += $(foreach dir,$(wildcard /usr/local/Cellar/*/*),$(dir)/lib)
       endif
-      ifeq (libXt,$(shell if ${TEST} -d /usr/X11/lib; then echo libXt; fi))
-        LIBPATH += /usr/X11/lib
-        OS_LDFLAGS += -L/usr/X11/lib
-      endif
     else
       ifeq (Linux,$(OSTYPE))
         ifeq (Android,$(shell uname -o))
@@ -457,12 +453,6 @@ ifeq (${WIN32},)  #*nix Environments (&& cygwin)
               OS_LDFLAGS += -L/usr/pkg/lib -R/usr/pkg/lib
               OS_CCDEFS += -I/usr/pkg/include
             endif
-            ifeq (X11R7,$(shell if ${TEST} -d /usr/X11R7/lib; then echo X11R7; fi))
-              LIBPATH += /usr/X11R7/lib
-              INCPATH += /usr/X11R7/include
-              OS_LDFLAGS += -L/usr/X11R7/lib -R/usr/X11R7/lib
-              OS_CCDEFS += -I/usr/X11R7/include
-            endif
             ifeq (/usr/local/lib,$(findstring /usr/local/lib,${LIBPATH}))
               INCPATH += /usr/local/include
               OS_CCDEFS += -I/usr/local/include