add HAVE_LIBM

diff --git a/config.h.in b/config.h.in
index 3915bde..eccfb10 100644 (file)
--- a/config.h.in
+++ b/config.h.in
@@ -421,6 +421,9 @@
 /* Define if you have the <unistd.h> header file.  */
 #undef HAVE_UNISTD_H
 
+/* Define if you have the m library (-lm).  */
+#undef HAVE_LIBM
+
 /* Define if you have the ndbm library (-lndbm).  */
 #undef HAVE_LIBNDBM