diff --git a/compatMakefile b/compatMakefile
index c4234767..03f9180b 100644
--- a/compatMakefile
+++ b/compatMakefile
@@ -22,6 +22,8 @@
 srcdir = @srcdir@
 VPATH = $(srcdir)
 
+, 1993CC = @CC@
+
 CFLAGS = -g
 LDFLAGS = -g
 
@@ -200,5 +202,8 @@ configure: configure.in
 config.h.in: configure.in
 	autohead
 
+# This tells versions [3.59,3.63) of GNU make not to export all variables.
+.NOEXPORT:
+
 # Automatically generated dependencies will be put at the end of the file.