diff --git a/pkgs/clang.yaml b/pkgs/clang.yaml
index 2ece259a8..a0f773d88 100644
--- a/pkgs/clang.yaml
+++ b/pkgs/clang.yaml
@@ -3,10 +3,9 @@ extends: [cmake_package]
 dependencies:
   build: [llvm]
 
-
 sources:
-- url: http://llvm.org/releases/3.4/clang-3.4.src.tar.gz
-  key: tar.gz:ekuxqdntxbnh6lvz5ipx63qa3ibety6r
+- key: tar.xz:m5z7h6opqflddtd6o6pmcng52iunzdu2
+  url: http://llvm.org/releases/3.5.1/cfe-3.5.1.src.tar.xz
 
 defaults:
   # lib/libclang.so.3.4 contains hard-coded path
diff --git a/pkgs/enum34.yaml b/pkgs/enum34.yaml
new file mode 100644
index 000000000..2eb1c1701
--- /dev/null
+++ b/pkgs/enum34.yaml
@@ -0,0 +1,14 @@
+extends: [distutils_package]
+
+dependencies:
+  build: []
+  run: []
+
+sources:
+# The proper sources should be:
+#- key: tar.gz:2paz6jvgundctqmmo5pvtx6f3vmvozgh
+#  url: https://pypi.python.org/packages/source/e/enum34/enum34-1.0.4.tar.gz
+# But they don't work due to https://github.com/hashdist/hashdist/issues/310,
+# so we use this equivalent git repository:
+- key: git:dc35e72a5b4c6da1f0caaab1aaa13553e481e173
+  url: https://github.com/certik/enum34
diff --git a/pkgs/funcsigs.yaml b/pkgs/funcsigs.yaml
new file mode 100644
index 000000000..eea1a6f9b
--- /dev/null
+++ b/pkgs/funcsigs.yaml
@@ -0,0 +1,9 @@
+extends: [setuptools_package]
+
+dependencies:
+  build: []
+  run: []
+
+sources:
+- key: tar.gz:3a6onxylb2tgdbya7yo3gu2smoi2ri5n
+  url: https://pypi.python.org/packages/source/f/funcsigs/funcsigs-0.4.tar.gz
diff --git a/pkgs/llvm.yaml b/pkgs/llvm.yaml
index 9b2f2e6b9..ffd23d47a 100644
--- a/pkgs/llvm.yaml
+++ b/pkgs/llvm.yaml
@@ -1,12 +1,12 @@
 extends: [cmake_package]
 
 sources:
-- url: http://llvm.org/releases/3.4/llvm-3.4.src.tar.gz
-  key: tar.gz:ewswclljfreeqg43hf7cwvpuq4hei6lg
+- key: tar.xz:x4zhluwxreablsgy6xtpj6ec7dhtx5iz
+  url: http://llvm.org/releases/3.5.1/llvm-3.5.1.src.tar.xz
 
 defaults:
   relocatable: false
 
-build_stages:
-- name: configure
-  extra: ['-D BUILD_SHARED_LIBS:BOOL=ON']
+when_build_dependency:
+- prepend_path: PATH
+  value: '${ARTIFACT}/bin'
diff --git a/pkgs/llvmlite.yaml b/pkgs/llvmlite.yaml
new file mode 100644
index 000000000..361ab2c2c
--- /dev/null
+++ b/pkgs/llvmlite.yaml
@@ -0,0 +1,8 @@
+extends: [distutils_package]
+dependencies:
+  build: [llvm]
+  run: [enum34]
+
+sources:
+  - key: git:317245a28a26056cb2eef48831329ed8eb76491e
+    url: https://github.com/numba/llvmlite
diff --git a/pkgs/numba.yaml b/pkgs/numba.yaml
new file mode 100644
index 000000000..9d970cb70
--- /dev/null
+++ b/pkgs/numba.yaml
@@ -0,0 +1,8 @@
+extends: [distutils_package]
+dependencies:
+  build: [llvmlite, numpy]
+  run: [numpy, argparse, funcsigs]
+
+sources:
+  - key: git:8267aed50bf0505de0689ae3cc45faa01353e4cc
+    url: https://github.com/numba/numba