diff --git a/src/modules/spider/configure.in b/src/modules/spider/configure.in
index 67002d6dd0e2b8a12e0650ab528ad87f8676807a..1c434c5e36a1bacda268dc46390709807b11b0cb 100644
--- a/src/modules/spider/configure.in
+++ b/src/modules/spider/configure.in
@@ -19,7 +19,7 @@ AC_HAVE_HEADERS(syslog.h sys/syslog.h arpa/inet.h sys/socketvar.h \
 AC_HAVE_FUNCS(syslog perror getppid getpgrp strdup\
 	gethostname geteuid fchroot seteuid setresuid \
         uname gethostbyname getpwnam getspnam initgroups \
-	mutex_unlock mmap sendmsg)
+	mutex_unlock mmap sendmsg getpwent setpwent endpwent)
 
 if test x$ac_cv_lib_thread_mutex_unlock = xno ;  then
  AC_HAVE_HEADERS( pthread.h )