From 378b6bb8cdb69a9835eaa616a1cee09343d5516e Mon Sep 17 00:00:00 2001
From: Andrew Bell <andrew.bell.ia@gmail.com>
Date: Wed, 16 May 2018 13:43:24 -0400
Subject: [PATCH] Don't remove paren option.

---
 cmake/unix_compiler_options.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cmake/unix_compiler_options.cmake b/cmake/unix_compiler_options.cmake
index 76c2e0e21b..94d3bf4e71 100644
--- a/cmake/unix_compiler_options.cmake
+++ b/cmake/unix_compiler_options.cmake
@@ -27,6 +27,7 @@ function(pdal_target_compile_settings target)
         -Wpointer-arith
         -Wcast-align
         -Wcast-qual
+        -Wno-error=parentheses
         -Wno-error=cast-qual
         -Wredundant-decls