--- ratpoison-1.4.4/configure.in.old	2009-06-07 16:40:39.550244427 +0100
+++ ratpoison-1.4.4/configure.in	2009-06-07 16:40:58.652402453 +0100
@@ -146,7 +146,7 @@
 dnl Checks for typedefs, structures, and compiler characteristics.
 
 dnl Checks for library functions.
-AC_CHECK_FUNCS(getopt getopt_long setsid setpgid setpgrp putenv vsnprintf usleep)
+AC_CHECK_FUNCS(getopt getopt_long setsid setpgid setpgrp putenv vsnprintf usleep getline)
 
 AC_TYPE_SIGNAL