diff -ur ngrep-1.45/configure.in ngrep-1.45+iPhone/configure.in
--- ngrep-1.45/configure.in	2006-11-15 03:43:56.000000000 +0000
+++ ngrep-1.45+iPhone/configure.in	2007-12-31 01:29:18.000000000 +0000
@@ -146,7 +146,7 @@
 
 fi
 
-( cd $REGEX_DIR && ./configure )
+( cd $REGEX_DIR && eval ./configure $ac_configure_args )
 
 AC_SUBST(REGEX_DIR)
 AC_SUBST(REGEX_OBJS)