--- Makefile.in.orig	Sat Jul 16 17:43:17 2005
+++ Makefile.in	Tue Jan  3 17:45:00 2012
@@ -11,18 +11,18 @@ LIBVERSION=@LIBVERSION@
 # -Wredundant-decls
 #
 CXX      = @CXX@
-CXXFLAGS = @CXXFLAGS@ @X_CFLAGS@ @DEFS@ \
+CXXFLAGS += @CXXFLAGS@ @X_CFLAGS@ @DEFS@ \
            -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \
            -Wmissing-declarations -Wnested-externs
 
-CXXINCLUDES = -I. -I../nxcomp
+CXXINCLUDES += -I. -I../nxcomp
 
 CC         = @CC@
-CCFLAGS    = $(CXXFLAGS)
-CCINCLUDES = -I. -I../nxcomp
-CCDEFINES  =
+CCFLAGS    += $(CXXFLAGS)
+CCINCLUDES += -I. -I../nxcomp
+CCDEFINES  +=
 
-LDFLAGS = @LDFLAGS@
+LDFLAGS += @LDFLAGS@
 LIBS    = @LIBS@
 
 #