Need to define AR since it is used, and not all Makes define it by default.
diff --git a/Makefile.in b/Makefile.in
index 304c0d9..27d3c95 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -81,6 +81,7 @@
 srcdir=		@srcdir@
 VPATH=		@srcdir@
 CC=		@CC@
+AR=		@AR@
 RANLIB=		@RANLIB@
 DEFS=		@DEFS@