From: Timo Heister <timo.heister@gmail.com>
Date: Mon, 6 Jul 2015 08:27:28 +0000 (-0400)
Subject: disable clang warnings
X-Git-Tag: v8.3.0-rc1~49^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2e7938c704714d70ecd1008b0b58de53ca8af01;p=dealii.git

disable clang warnings

compiling the bundled boost with clang without cxx11 causes hundreds of
warnings.
---

diff --git a/cmake/setup_compiler_flags_gnu.cmake b/cmake/setup_compiler_flags_gnu.cmake
index 119ba6d3bf..d375017db7 100644
--- a/cmake/setup_compiler_flags_gnu.cmake
+++ b/cmake/setup_compiler_flags_gnu.cmake
@@ -92,6 +92,11 @@ IF(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS "-Wno-unused-parameter")
   ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS "-Wno-unused-variable")
 
+  # without c++11 enabled, clang produces a ton of warnings in boost:
+  ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS "-Wno-c99-extensions")
+  ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS "-Wno-variadic-macros")
+  ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS "-Wno-c++11-extensions")
+
   IF(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.6")
     #
     # Clang versions prior to 3.6 emit a lot of false positives wrt