meson: set C++ standard to C++11

RadeonSI requires C++11, clover requires C++11, LLVM requires it, so
llvmpipe may require it, and that covers most of the C++ code in mesa.

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

diff --git a/meson.build b/meson.build
index b1bd736..5de64ac 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -19,7 +19,7 @@
 # SOFTWARE.
 
 project('mesa', ['c', 'cpp'], version : '17.3.0-devel', license : 'MIT',
-        default_options : ['c_std=c99'])
+        default_options : ['c_std=c99', 'cpp_std=c++11'])
 
 with_dri3 = true  # XXX: need a switch for this
 with_vulkan_icd_dir = get_option('vulkan-icd-dir')