diff --git a/configure.ac b/configure.ac
index ec8a47c3..c9a0a06b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -90,6 +90,7 @@ if test "x${SUNCC}" = "xyes"; then
 fi
 
 # Checks for libraries.
+AC_CHECK_LIB([m],[pow])
 
 # Checks for header files.
 AC_HEADER_STDC