$NetBSD$

boost as of pkgsrc-2020Q1 fails with -Wold-style-cast.
boost as of pkgsrc-2023Q1 fails with -Wshadow.

--- CMakeLists.txt.orig	2022-02-28 03:46:32.000000000 +0000
+++ CMakeLists.txt
@@ -35,7 +35,7 @@ endif()
 if(MSVC)
     add_compile_options(/bigobj /W3 /WX)
 else()
-    add_compile_options(-Wall -Wextra -pedantic -Wshadow -Wold-style-cast)
+    add_compile_options(-Wall -Wextra -pedantic)
     option(WITH_WERROR "Compile with '-Werror' C++ compiler flag" ON)
     if(WITH_WERROR)
         add_compile_options(-Werror)