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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index 9fe1a92f..05a354d1 100644
--- a/configure.in
+++ b/configure.in
@@ -55,7 +55,7 @@ AC_CHECK_LIB(dl, dlopen, , )
AC_CHECK_LIB(pam, pam_authenticate, , )
dnl Checks for header files.
-AC_CHECK_HEADERS(pty.h endian.h paths.h lastlog.h shadow.h netgroup.h maillock.h)
+AC_CHECK_HEADERS(pty.h endian.h paths.h lastlog.h shadow.h netgroup.h maillock.h sys/select.h)
dnl Checks for library functions.
AC_CHECK_FUNCS(openpty strlcpy mkdtemp arc4random setproctitle setlogin)