From: Lennart Poettering <lenn...@poettering.net>
udev_enumerate_add_match_tag() and udev_monitor_filter_add_match_tag()
are mostly optimizations, hence simply skip these calls if they are not
available in the installed version of libudev.
This should fix the build on older versions of udev.
[airlied: fixes tinderbox failures on RHEL6]
Signed-off-by: Lennart Poettering <lenn...@poettering.net>
Reviewed-by: Dave Airlie <airl...@redhat.com>
Tested-by: Dave Airlie <airl...@redhat.com>
---
config/udev.c | 4 ++++
configure.ac | 9 +++++++++
include/dix-config.h.in | 6 ++++++
3 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/config/udev.c b/config/udev.c
index 1ba0d50..e2b3726 100644
--- a/config/udev.c
+++ b/config/udev.c
@@ -285,8 +285,10 @@ config_udev_init(void)
udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "input",
NULL);
udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty",
NULL); /* For Wacom serial devices */
+#ifdef HAVE_UDEV_MONITOR_FILTER_ADD_MATCH_TAG
if (SeatId && strcmp(SeatId, "seat0"))
udev_monitor_filter_add_match_tag(udev_monitor, SeatId);
+#endif
if (udev_monitor_enable_receiving(udev_monitor)) {
ErrorF("config/udev: failed to bind the udev monitor\n");
@@ -300,8 +302,10 @@ config_udev_init(void)
udev_enumerate_add_match_subsystem(enumerate, "input");
udev_enumerate_add_match_subsystem(enumerate, "tty");
+#ifdef HAVE_UDEV_ENUMERATE_ADD_MATCH_TAG
if (SeatId && strcmp(SeatId, "seat0"))
udev_enumerate_add_match_tag(enumerate, SeatId);
+#endif
udev_enumerate_scan_devices(enumerate);
devices = udev_enumerate_get_list_entry(enumerate);
diff --git a/configure.ac b/configure.ac
index b0d2643..30716fb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -822,6 +822,15 @@ if test "x$CONFIG_UDEV" = xyes; then
AC_MSG_ERROR([udev configuration API requested, but libudev is
not installed])
fi
AC_DEFINE(CONFIG_UDEV, 1, [Use libudev for input hotplug])
+
+ SAVE_LIBS=$LIBS
+ SAVE_CFLAGS=$CFLAGS
+ CFLAGS=$UDEV_CFLAGS
+ LIBS=$UDEV_LIBS
+ AC_CHECK_FUNCS([udev_monitor_filter_add_match_tag])
+ AC_CHECK_FUNCS([udev_enumerate_add_match_tag])
+ LIBS=$SAVE_LIBS
+ CFLAGS=$SAVE_CFLAGS
fi
dnl HAVE_DBUS is true if we actually have the D-Bus library, whereas
diff --git a/include/dix-config.h.in b/include/dix-config.h.in
index 5facb11..2dcaf6b 100644
--- a/include/dix-config.h.in
+++ b/include/dix-config.h.in
@@ -402,6 +402,12 @@
/* Use libudev for input hotplug */
#undef CONFIG_UDEV
+/* Use udev_monitor_filter_add_match_tag() */
+#undef HAVE_UDEV_MONITOR_FILTER_ADD_MATCH_TAG
+
+/* Use udev_enumerate_add_match_tag() */
+#undef HAVE_UDEV_ENUMERATE_ADD_MATCH_TAG
+
/* Use D-Bus for input hotplug */
#undef CONFIG_NEED_DBUS
--
1.7.6.4
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