1 files changed, 31 insertions, 19 deletions

diff --git a/swaylock/meson.build b/swaylock/meson.build
index 675b8c69..6c87d173 100644
--- a/swaylock/meson.build
+++ b/swaylock/meson.build
@@ -1,25 +1,37 @@
 sysconfdir = get_option('sysconfdir')
 
-executable(
-        'swaylock', [
-                'main.c',
-                'password.c',
-                'render.c',
-                'seat.c'
-        ],
+dependencies = [
+    cairo,
+    client_protos,
+    gdk_pixbuf,
+    math,
+    pango,
+    pangocairo,
+    xkbcommon,
+    wayland_client,
+    wlroots,
+]
+
+sources = [
+    'main.c',
+    'password.c',
+    'render.c',
+    'seat.c'
+]
+
+if libpam.found()
+    sources += ['pam.c']
+    dependencies += [libpam]
+else
+    warning('The swaylock binary must be setuid when compiled without libpam')
+    warning('You must do this manually post-install: chmod a+s /path/to/swaylock')
+    sources += ['shadow.c']
+endif
+
+executable('swaylock',
+    sources,
         include_directories: [sway_inc],
-        dependencies: [
-                cairo,
-                client_protos,
-                gdk_pixbuf,
-                libpam,
-                math,
-                pango,
-                pangocairo,
-                xkbcommon,
-                wayland_client,
-                wlroots,
-        ],
+        dependencies: dependencies,
         link_with: [lib_sway_common, lib_sway_client],
         install: true
 )