--- a/src/meson.build
+++ b/src/meson.build
@@ -81,8 +81,7 @@
 endif
 
 if meson.is_cross_build() or not get_option('scanner')
-	scanner_dep = dependency('wayland-scanner', native: true, version: meson.project_version())
-	wayland_scanner_for_build = find_program(scanner_dep.get_variable(pkgconfig: 'wayland_scanner'))
+	wayland_scanner_for_build = find_program('wayland-scanner', native: true)
 else
 	wayland_scanner_for_build = wayland_scanner
 endif
--- a/src/wayland-server.c
+++ b/src/wayland-server.c
@@ -39,7 +39,23 @@
 #include <dlfcn.h>
 #include <sys/time.h>
 #include <fcntl.h>
-#include <sys/eventfd.h>
+#ifndef EFD_CLOEXEC
+#define EFD_CLOEXEC O_CLOEXEC
+#endif
+#ifndef EFD_NONBLOCK
+#define EFD_NONBLOCK O_NONBLOCK
+#endif
+#ifndef EFD_SEMAPHORE
+#define EFD_SEMAPHORE 0x1
+#endif
+static int eventfd(unsigned int initval, int flags) {
+    int oflag = O_RDWR;
+    if (flags & EFD_CLOEXEC) oflag |= O_CLOEXEC;
+    if (flags & EFD_NONBLOCK) oflag |= O_NONBLOCK;
+    char path[64];
+    snprintf(path, sizeof(path), "/scheme/event/eventfd/%u/%d", initval, (flags & EFD_SEMAPHORE) ? 1 : 0);
+    return open(path, oflag);
+}
 #include <sys/file.h>
 #include <sys/stat.h>