configure: check for ppoll()

We're using ppoll() for events - check if we have it before trying
to compile.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>

diff --git a/configure.ac b/configure.ac
index 85424cb3717fa6ee768bee602c19e024908cf765..a3d4e593787e75de296af25d14122d4be1d8f036 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -25,6 +25,7 @@ AC_HEADER_STDC
 AC_CHECK_FUNC([ioctl], [], [AC_MSG_ERROR([ioctl() unavailable])])
 AC_CHECK_FUNC([asprintf], [], [AC_MSG_ERROR([asprintf() unavailable])])
 AC_CHECK_FUNC([readdir], [], [AC_MSG_ERROR([readdir() unavailable])])
+AC_CHECK_FUNC([poll], [], [AC_MSG_ERROR([poll() unavailable])])
 
 AC_FUNC_MALLOC