--- configure.ac.orig	2009-10-18 22:55:16.106419665 +0200
+++ configure.ac	2009-10-18 22:55:54.820415996 +0200
@@ -753,12 +753,7 @@
 save_LDFLAGS="$LDFLAGS"
 LDFLAGS="$LDFLAGS -lm"
 
-AC_CHECK_FUNCS([pow] [sqrt] [finite] [floor])
-
-AC_CHECK_FUNC([exp10],,[
-				AC_DEFINE([log_10_],[2.3025850929940456840179914546844],[Provide a macro to do exp10])
-				AC_DEFINE([exp10(x)],[exp( (log_10_) * (x) )],[Provide a macro to do exp10])
-				])
+AC_CHECK_FUNCS([pow] [sqrt] [finite] [floor] [exp10])
 
 ### If isinf exists or not (used to not be the case under Solaris)
 ### See bug #4164