build: squash various warnings with Clang

Otherwise we have really chatty builds that make it difficult to catch
new issues when compiling.

diff --git a/meson.build b/meson.build
index 2d33e6fe34c405fef22b26284500829eefb70d95..85656d20c33b61aec8226a0d1519566ab474a12d 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -235,6 +235,8 @@ if cc.get_id() == 'msvc'
 elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
   test_cflags = [
     '-fno-strict-aliasing',
+    '-Wno-c++11-extensions',
+    '-Wno-missing-include-dirs',
     '-Wno-typedef-redefinition',
     '-Wcast-align',
     '-Wduplicated-branches',