Remove X11 detection during configure

X11 is not used anywhere.

Lib/perl5/Makefile.in

@@ -47,7 +47,7 @@ SWIGOPT       = -perl5
 SWIGCC        = $(CC) 
 
 # SWIG Library files.  Uncomment this to staticly rebuild Perl
-#SWIGLIB       = -static -lperlmain.i
+#SWIGLIBS      = -static -lperlmain.i
 
 # Rules for creating .o files from source.
 
@@ -69,33 +69,21 @@ BUILD         = @LDSHARED@
 #DLL_LIBS      = -L/usr/local/lib/gcc-lib/sparc-sun-solaris2.5.1/2.7.2 \
              -L/usr/local/lib -lg++ -lstdc++ -lgcc
 
-# X11 installation (possibly needed if using Perl-Tk)
-
-XLIB          = @XLIBSW@
-XINCLUDE      = @XINCLUDES@
-
 # Perl installation
 
 PERL_INCLUDE  = -I@PERL5EXT@
 PERL_LIB      = -L@PERL5EXT@ -lperl 
 PERL_FLAGS    = -Dbool=char -Dexplicit=
 
-# Tcl installation.  If using Tk you might need this
-
-TCL_INCLUDE   = @TCLINCLUDE@
-TCL_LIB       = @TCLLIB@
-
 # Build libraries (needed for static builds)
 
 LIBM          = @LIBM@
 LIBC          = @LIBC@
 SYSLIBS       = $(LIBM) $(LIBC) @LIBS@
 
-# Build options (uncomment only one these)
+# Build options
 
-#TK_LIB        = $(TCL_LIB) -ltcl -ltk $(XLIB)
 BUILD_LIBS    = $(LIBS) # Dynamic loading
-#BUILD_LIBS    = $(PERL_LIB) $(TK_LIB) $(LIBS) $(SYSLIBS)  # Static linking
 
 # Compilation rules for non-SWIG components
 
@@ -123,7 +111,7 @@ $(WRAPOBJ) : $(WRAPFILE)
 	$(SWIGCC) -c $(CCSHARED) $(CFLAGS) $(INCLUDES) $(PERL_INCLUDE) $(PERL_FLAGS) $(WRAPFILE)
 
 $(WRAPFILE) : $(INTERFACE)
-	$(SWIG) $(SWIGOPT) -o $(WRAPFILE) $(SWIGLIB) $(INTERFACE)
+	$(SWIG) $(SWIGOPT) -o $(WRAPFILE) $(SWIGLIBS) $(INTERFACE)
 
 $(TARGET): $(WRAPOBJ) $(ALLOBJS)
 	$(BUILD) $(WRAPOBJ) $(ALLOBJS) $(BUILD_LIBS) -o $(TARGET)