[ARROW-219] [C++] Passed CMAKE_CXX_FLAGS are being dropped, fix compiler warnings

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.1.0
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/15565
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 16/Jun/16 19:02
• Updated: 11/Jan/23 07:07
• Resolved: 17/Jun/16 05:07

Description

I was investigating the compiler warnings that have popped up in the C++ build and found that the -DCMAKE_CXX_FLAGS="-Werror" was not being respected. I will fix and also address compiler warnings