Remove -Wall from default build options
All bazel crosstools automatically pass -Wall to compiles. The order of
operations is:
- bazel crosstool flags
- `--host_copt` flags and other variations like `--host_cxxopt`
- the `copts` defined on the rule
Because of this when protobuf produces warnings, there's no way to
disable them from the consumer side if they are re-enabled later by
another `-Wall` flag.
diff --git a/BUILD b/BUILD
index 1961cc4..2fb2605 100644
--- a/BUILD
+++ b/BUILD
@@ -49,7 +49,6 @@
"//conditions:default": [
"-DHAVE_PTHREAD",
"-DHAVE_ZLIB",
- "-Wall",
"-Woverloaded-virtual",
"-Wno-sign-compare",
"-Wno-unused-function",