diff --git a/depends/packages/libxcb.mk b/depends/packages/libxcb.mk
--- a/depends/packages/libxcb.mk
+++ b/depends/packages/libxcb.mk
@@ -7,6 +7,18 @@
 
 define $(package)_set_vars
 $(package)_config_opts=--disable-static
+# Because we pass -qt-xcb to Qt, it will compile in a set of xcb helper libraries and extensions,
+# so we skip building all of the extensions here.
+# More info is available from: https://doc.qt.io/qt-5.9/linux-requirements.html
+$(package)_config_opts += --disable-composite --disable-damage --disable-dpms
+$(package)_config_opts += --disable-dri2 --disable-dri3 --disable-glx
+$(package)_config_opts += --disable-present --disable-randr --disable-record
+$(package)_config_opts += --disable-render --disable-resource --disable-screensaver
+$(package)_config_opts += --disable-shape --disable-shm --disable-sync
+$(package)_config_opts += --disable-xevie --disable-xfixes --disable-xfree86-dri
+$(package)_config_opts += --disable-xinerama --disable-xinput --disable-xkb
+$(package)_config_opts += --disable-xprint --disable-selinux --disable-xtest
+$(package)_config_opts += --disable-xv --disable-xvmc
 endef
 
 define $(package)_preprocess_cmds