[Bf-blender-cvs] [805ba9fc81d] master: CMake: add GCC 9.2 -Wabsolute-value warning

[Campbell Barton]

Commit: 805ba9fc81d5b30596da52862b02e5ec8cabbad5
Author: Campbell Barton
Date:   Mon Oct 7 12:20:49 2019 +1100
Branches: master
https://developer.blender.org/rB805ba9fc81d5b30596da52862b02e5ec8cabbad5

CMake: add GCC 9.2 -Wabsolute-value warning

===================================================================

M	CMakeLists.txt

===================================================================

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cddb93dd7ab..b065756017c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1395,13 +1395,16 @@ if(CMAKE_COMPILER_IS_GNUCC)
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_LOGICAL_OP -Wlogical-op)
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNDEF -Wundef)
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_INIT_SELF -Winit-self)  # needs -Wuninitialized
-  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_NO_NULL -Wnonnull)  # C only
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_MISSING_INCLUDE_DIRS -Wmissing-include-dirs)
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_NO_DIV_BY_ZERO -Wno-div-by-zero)
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_TYPE_LIMITS -Wtype-limits)
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_FORMAT_SIGN -Wformat-signedness)
   ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_RESTRICT -Wrestrict)
 
+  # C-only.
+  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_NO_NULL -Wnonnull)
+  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_ABSOLUTE_VALUE -Wabsolute-value)
+
   # gcc 4.2 gives annoying warnings on every file with this
   if(NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "4.3")
     ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNINITIALIZED -Wuninitialized)