[PATCH 3/3] meson: Disable CONFIG_NOTIFY1 on FreeBSD

[Ilya Leoshkevich <iii@linux.ibm.com>]

make vm-build-freebsd fails with:

    ld: error: undefined symbol: inotify_init1
    >>> referenced by filemonitor-inotify.c:183 (../src/util/filemonitor-inotify.c:183)
    >>>               util_filemonitor-inotify.c.o:(qemu_file_monitor_new) in archive libqemuutil.a

On FreeBSD inotify functions are defined in libinotify.so, so it might
be tempting to add it to the dependencies. Doing so, however, reveals
that this library handles rename events differently from Linux:

    $ FILEMONITOR_DEBUG=1 build/tests/unit/test-util-filemonitor
    Rename /tmp/test-util-filemonitor-K13LI2/fish/one.txt -> /tmp/test-util-filemonitor-K13LI2/two.txt
    Event id=200000000 event=2 file=one.txt
    Queue event id 200000000 event 2 file one.txt
    Queue event id 100000000 event 2 file two.txt
    Queue event id 100000002 event 2 file two.txt
    Queue event id 100000000 event 0 file two.txt
    Queue event id 100000002 event 0 file two.txt
    Event id=100000000 event=0 file=two.txt
    Expected event 0 but got 2

FreeBSD itself disables this functionality in the respective port [1].
So do it upstream too.

[1] https://cgit.freebsd.org/ports/tree/emulators/qemu-devel/files/patch-util_meson.build?id=984366c18f1bc54e38751afc29be08c596b83696

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 meson.build | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meson.build b/meson.build
index d0329966f1b..3d67d78b522 100644
--- a/meson.build
+++ b/meson.build
@@ -2403,6 +2403,7 @@ config_host_data.set('CONFIG_GETRANDOM',
 config_host_data.set('CONFIG_INOTIFY',
                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
 config_host_data.set('CONFIG_INOTIFY1',
+                     host_os != 'freebsd' and
                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
-- 
2.43.0