--- src/Makefile.in.old	Wed Jul 19 16:44:37 2000
+++ src/Makefile.in	Wed Jul 19 16:45:06 2000
@@ -58,8 +58,8 @@
 PRE_UNINSTALL = :
 POST_UNINSTALL = :
 AWK = @AWK@
-CXX = @CXX@
-CXXFLAGS = @CXXFLAGS@
+CXX ?= @CXX@
+CXXFLAGS += @CXXFLAGS@
 LN_S = @LN_S@
 MAKEINFO = @MAKEINFO@
 PACKAGE = @PACKAGE@
