Fix check for openpty

The previous implementation of the openpty check was always returning
'no' as openpty is typically defined in util.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

diff --git a/configure.ac b/configure.ac
index dd5070172e69fe3245c65e0573397fd712ce815d..d1f5ad950f9c27baeaf5d5d6006b5f0aef968237 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -227,6 +227,7 @@ AC_CHECK_HEADERS([sys/signalfd.h pty.h sys/capability.h sys/personality.h utmpx.
 AC_CHECK_FUNCS([setns pivot_root sethostname unshare])
 
 # Check for some functions
+AC_CHECK_LIB(util, openpty)
 AC_CHECK_FUNCS([openpty hasmntopt setmntent endmntent])
 AC_CHECK_FUNCS([getline],
        AM_CONDITIONAL(HAVE_GETLINE, true)