diff -uNr tacacs+-F4.0.4.19.ORIG/configure.in tacacs+-F4.0.4.19/configure.in
--- tacacs+-F4.0.4.19.ORIG/configure.in	2013-02-28 21:26:31.724310410 +0000
+++ tacacs+-F4.0.4.19/configure.in	2013-02-28 21:26:41.936309960 +0000
@@ -126,7 +126,6 @@
 
 # compiler specifics
 AC_PROG_CC
-AM_C_PROTOTYPES
 AC_PROG_CPP
 AC_C_CONST
 AC_C_INLINE