Fix conda packages (#642)

* Make the tvm conda package build with in-place source and use cmake from conda.

* Add a package for topi.

python/conda/build.sh

@@ -26,7 +26,7 @@ mkdir -p build
 cd build
 # Enable static-libstdc++ to make it easier to link this library with
 # other C++ compilers
-CXXFLAGS=-static-libstdc++ cmake3 -DCMAKE_PREFIX_PATH=${PREFIX} -DCMAKE_INSTALL_PREFIX=${PREFIX} -DUSE_CUDA=1 -DUSE_LLVM=1 -DINSTALL_DEV=1 $CUDA_ARGS ..
+CXXFLAGS=-static-libstdc++ cmake -DCMAKE_PREFIX_PATH=${PREFIX} -DCMAKE_INSTALL_PREFIX=${PREFIX} -DUSE_CUDA=1 -DUSE_LLVM=1 -DINSTALL_DEV=1 $CUDA_ARGS ..
 make -j20 VERBOSE=1
 make install/fast
 cd ..

python/conda/meta.yaml

@@ -16,6 +16,7 @@ build:
 requirements:
   build:
     - llvmdev ==4.0.0
+    - cmake
     - python >=3
     - numpy
     - setuptools

topi/python/conda/meta.yaml

+{% set version = "0.1.dev" %}
+
+package:
+  name: topi
+  version: {{ version }}
+
+source:
+  path: ..
+
+build:
+  number: 0
+  script: $PYTHON setup.py install
+
+requirements:
+  build:
+    - cmake
+    - python >=3
+    - numpy
+    - setuptools
+    - nose
+    - decorator
+  run:
+    - python >=3
+    - numpy
+    - decorator
+
+about:
+  home: https://github.com/dmlc/tvm
+  license: Apache2
+  summary: "TOPI: TVM Operator Inventory"