diff --git a/extra/libffi/build b/extra/libffi/build
deleted file mode 100755
index 8c650b61..00000000
--- a/extra/libffi/build
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/sh -e
-
-./configure \
-    --prefix=/usr
-
-make
-make DESTDIR="$1" install
-
-# Remove all info files.
-rm -rf "$1/usr/share/info"
diff --git a/extra/libffi/checksums b/extra/libffi/checksums
deleted file mode 100644
index f6bb1830..00000000
--- a/extra/libffi/checksums
+++ /dev/null
@@ -1 +0,0 @@
-d06ebb8e1d9a22d19e38d63fdb83954253f39bedc5d46232a05645685722ca37  libffi-3.2.1.tar.gz
diff --git a/extra/libffi/licenses b/extra/libffi/licenses
deleted file mode 100644
index a66fab4f..00000000
--- a/extra/libffi/licenses
+++ /dev/null
@@ -1,21 +0,0 @@
-libffi - Copyright (c) 1996-2014  Anthony Green, Red Hat, Inc and others.
-See source files for details.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-``Software''), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/extra/libffi/manifest b/extra/libffi/manifest
deleted file mode 100644
index beca21b8..00000000
--- a/extra/libffi/manifest
+++ /dev/null
@@ -1,30 +0,0 @@
-/var/db/kiss/libffi/version
-/var/db/kiss/libffi/sources
-/var/db/kiss/libffi/manifest
-/var/db/kiss/libffi/licenses
-/var/db/kiss/libffi/checksums
-/var/db/kiss/libffi/build
-/var/db/kiss/libffi/
-/var/db/kiss/
-/var/db/
-/var/
-/usr/share/man/man3/ffi_prep_cif_var.3
-/usr/share/man/man3/ffi_prep_cif.3
-/usr/share/man/man3/ffi_call.3
-/usr/share/man/man3/ffi.3
-/usr/share/man/man3/
-/usr/share/man/
-/usr/share/
-/usr/lib/pkgconfig/libffi.pc
-/usr/lib/pkgconfig/
-/usr/lib/libffi.so.6.0.4
-/usr/lib/libffi.so.6
-/usr/lib/libffi.so
-/usr/lib/libffi.la
-/usr/lib/libffi.a
-/usr/lib/libffi-3.2.1/include/ffitarget.h
-/usr/lib/libffi-3.2.1/include/ffi.h
-/usr/lib/libffi-3.2.1/include/
-/usr/lib/libffi-3.2.1/
-/usr/lib/
-/usr/
diff --git a/extra/libffi/sources b/extra/libffi/sources
deleted file mode 100644
index 12b6fbd7..00000000
--- a/extra/libffi/sources
+++ /dev/null
@@ -1 +0,0 @@
-ftp://sourceware.org/pub/libffi/libffi-3.2.1.tar.gz
diff --git a/extra/libffi/version b/extra/libffi/version
deleted file mode 100644
index b7c90c2c..00000000
--- a/extra/libffi/version
+++ /dev/null
@@ -1 +0,0 @@
-3.2.1 1
diff --git a/extra/python/build b/extra/python/build
index 042e5c6a..a05c0ccd 100755
--- a/extra/python/build
+++ b/extra/python/build
@@ -1,12 +1,8 @@
 #!/bin/sh -e
 
-# Force system libs
-rm -r Modules/_ctypes/darwin* \
-      Modules/_ctypes/libffi*
-
 ./configure \
     --prefix=/usr \
-    --with-system-ffi
+    --without-ensurepip
 
 make
 make DESTDIR="$1" install
diff --git a/extra/python/depends b/extra/python/depends
index 11d4a957..75929cf7 100644
--- a/extra/python/depends
+++ b/extra/python/depends
@@ -1,2 +1 @@
-libffi
 libressl