Fixes

Change-Id: Ib719b164e76ba6d3bd99d6b4c980f9eacab30d2c

Author: wesm

appveyor.yml

@@ -48,7 +48,7 @@ environment:
   global:
     USE_CLCACHE: true
     ARROW_BUILD_GANDIVA: "OFF"
-    ARROW_LLVM_VERSION: "7.0.x"
+    ARROW_LLVM_VERSION: "7.0.*"
     PYTHON: "3.6"
     ARCH: "64"
 

cpp/src/gandiva/precompiled/time_test.cc

@@ -82,6 +82,8 @@ TEST(TestTime, TestCastTimestamp) {
 
 TEST(TestTime, TestCastTimestampErrors) {
   ExecutionContext context;
+  int64_t context_ptr = reinterpret_cast<int64_t>(&context);
+
   // error cases
   EXPECT_EQ(castTIMESTAMP_utf8(context_ptr, "20000923", 8), 0);
   EXPECT_EQ(context.get_error(), "Not a valid day for timestamp value 20000923");