commit 67180a07f8d56f2092da889fbf26073d72d6b47d
author Nicolas Capens <capn@google.com> Mon Jun 17 15:27:03 2019 -0400
committer Nicolas Capens <nicolascapens@google.com> Tue Jun 18 16:46:25 2019 +0000
tree 0ae88720e25d7b5d4fa8031c329844d8ad18d08f
parent 9283b2559c0580dbb8fb6effffd11dc3f28b5f42

Fix building with Clang 4.0

Clang 4.0.1 is less than two years old and still in widespread use.
It doesn't support some of the more recent diagnostic warnings.

Bug: b/130335507
Change-Id: I68c6270c2e90c50b1de1657e16e914c89b336952
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/30191
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c954e62..86fc3fa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -344,6 +344,10 @@
             "-Werror=string-conversion"
             "-Werror=extra-semi"
             "-Werror=ignored-qualifiers"
+            # Silence errors caused by unknown warnings when building with older
+            # versions of Clang. This demands checking that warnings added above
+            # are spelled correctly and work as intended!
+            "-Wno-unknown-warning-option"
         )
     endif()