--- agg-2.5/configure.in~	2006-10-09 04:06:36.000000000 +0000
+++ agg-2.5/configure.in	2015-04-04 23:25:20.835809908 +0000
@@ -8,7 +8,6 @@
 AC_PROG_CC
 AC_PROG_CXX
 AC_ISC_POSIX
-AM_C_PROTOTYPES
 if test "x$U" != "x"; then
   AC_MSG_ERROR(Compiler not ANSI compliant)
 fi