Another flag in ExtraCompilerWarnings, to get GCC to stop whining abo…

…ut boost::optional.
rpavlik · Apr 25, 2016 · 1dd3d89 · 1dd3d89
1 parent 90d1a89
commit 1dd3d89
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/EnableExtraCompilerWarnings.cmake b/EnableExtraCompilerWarnings.cmake
@@ -50,6 +50,15 @@ macro(_enable_extra_compiler_warnings_flags)
 			set(_flags "${_flags} -Wextra")
 		endif()
 
+		if(SUPPORTS_WALL_FLAG)
+			# At least GCC includes -Wmaybe-uninitialized in -Wall, which
+			# unneccesarily whines about boost::optional (by it's nature
+			# it's a "maybe" warning - prone to noisy false-positives)
+			check_cxx_compiler_flag(-Wno-maybe-uninitialized SUPPORTS_WNO_MAYBE_UNINITIALIZED_FLAG)
+			if(SUPPORTS_WNO_MAYBE_UNINITIALIZED_FLAG)
+				set(_flags "${_flags} -Wno-maybe-uninitialized")
+			endif()
+		endif()
 	endif()
 endmacro()