tools: setenv the quirks dir when running from the build directory

Fixes #84

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

tools/shared.c

@@ -311,6 +311,13 @@ tools_open_device(const char *path, bool verbose, bool *grab)
 	return li;
 }
 
+static void
+tools_setenv_quirks_dir(void)
+{
+	if (tools_execdir_is_builddir(NULL, 0))
+		setenv("LIBINPUT_QUIRKS_DIR", LIBINPUT_QUIRKS_SRCDIR, 0);
+}
+
 struct libinput *
 tools_open_backend(enum tools_backend which,
 		   const char *seat_or_device,
@@ -319,6 +326,8 @@ tools_open_backend(enum tools_backend which,
 {
 	struct libinput *li;
 
+	tools_setenv_quirks_dir();
+
 	switch (which) {
 	case BACKEND_UDEV:
 		li = tools_open_udev(seat_or_device, verbose, grab);