diff --git a/src/defines.pri b/src/defines.pri
index 498982c76..6f2553b4f 100644
--- a/src/defines.pri
+++ b/src/defines.pri
@@ -13,14 +13,11 @@ unix: VERSION = $$QZ_VERSION
 DEFINES *= QUPZILLA_VERSION=\\\"""$$QZ_VERSION"\\\""
 
 d_no_system_datapath = $$(NO_SYSTEM_DATAPATH)
-d_use_webgl = $$(USE_WEBGL)
-d_kde = $$(KDE) # Backwards compatibility
 d_kde_integration = $$(KDE_INTEGRATION)
 d_gnome_integration = $$(GNOME_INTEGRATION)
 d_nox11 = $$(NO_X11)
 d_portable = $$(PORTABLE_BUILD)
 d_nonblock_dialogs = $$(NONBLOCK_JS_DIALOGS)
-d_use_qtwebkit_2_2 = $$(USE_QTWEBKIT_2_2)
 d_use_lib_path = $$(USE_LIBPATH)
 d_disable_dbus = $$(DISABLE_DBUS)
 d_disable_updates_check = $$(DISABLE_UPDATES_CHECK)
@@ -28,14 +25,11 @@ d_debug_build = $$(DEBUG_BUILD)
 d_prefix = $$(QUPZILLA_PREFIX)
 
 equals(d_no_system_datapath, "true") { DEFINES *= NO_SYSTEM_DATAPATH }
-equals(d_use_webgl, "true") { DEFINES *= USE_WEBGL }
-equals(d_kde, "true") { DEFINES *= KDE_INTEGRATION }
 equals(d_kde_integration, "true") { DEFINES *= KDE_INTEGRATION }
 equals(d_gnome_integration, "true") { DEFINES *= GNOME_INTEGRATION }
 equals(d_nox11, "true") { DEFINES *= NO_X11 }
 equals(d_portable, "true") { DEFINES *= PORTABLE_BUILD }
 equals(d_nonblock_dialogs, "true") { DEFINES *= NONBLOCK_JS_DIALOGS }
-equals(d_use_qtwebkit_2_2, "true") { DEFINES *= USE_QTWEBKIT_2_2 }
 equals(d_disable_dbus, "true") { DEFINES *= DISABLE_DBUS }
 equals(d_disable_updates_check, "true") { DEFINES *= DISABLE_UPDATES_CHECK }
 equals(d_debug_build, "true") { CONFIG += debug }