--- a/Makefile.in
+++ b/Makefile.in
@@ -484,15 +484,15 @@
   | sed 's|^\./|$(prefix)/|' | grep -v '$(infodir)/dir$$'
 distcleancheck_listfiles = find . -type f -print
 ABS_TAPSET_DIR = @ABS_TAPSET_DIR@
-ACLOCAL = @ACLOCAL@
+ACLOCAL = true
 ALLOCA = @ALLOCA@
 AMTAR = @AMTAR@
 AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
 AR = @AR@
 AS = @AS@
-AUTOCONF = @AUTOCONF@
-AUTOHEADER = @AUTOHEADER@
-AUTOMAKE = @AUTOMAKE@
+AUTOCONF = true
+AUTOHEADER = true
+AUTOMAKE = true
 AWK = @AWK@
 CARBON_LIBS = @CARBON_LIBS@
 CATALOGS = @CATALOGS@