Commits

Wes McKinney authored 2c3bd9311b3
ARROW-588: [C++] Fix some 32 bit compiler warnings I also found that $CMAKE_CXX_FLAGS were not being passed to the gflags external project. Author: Wes McKinney <wes.mckinney@twosigma.com> Closes #354 from wesm/32-bit-compiler-warnings and squashes the following commits: 8829a58 [Wes McKinney] Fix cast to wrong type 5a17654 [Wes McKinney] clang format 43687c5 [Wes McKinney] Fix some more compiler warnings 843479c [Wes McKinney] Fixes 9dbd619 [Wes McKinney] 32 bit fixes