build: Add -Wdeprecated-copy to the C++ build flags

Define is_gcc and enable the warning flag if it is true. Signed-off-by: Gert Wollny <gert.wollny@collabora.com> Bug: angleproject:4486 Change-Id: Ie3271cad5cd7de7b45a48d520eeadfe85e742254 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2690954 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

build: Add -Wdeprecated-copy to the C++ build flags
79f24110 · Gert Wollny · Commit Bot · 5b82fa2e · 79f24110
Commit 79f24110 authored Feb 12, 2021 by Gert Wollny Committed by Commit Bot Mar 01, 2021
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--- a/BUILD.gn
+++ b/BUILD.gn
@@ -157,6 +157,8 @@ config("constructor_and_destructor_warnings") {
 config("extra_warnings") {
  cflags = []

+  is_gcc = !is_clang && !is_win
+
  # Avoid failing builds for warnings enabled by Skia build.
  if (defined(is_skia_standalone)) {
    cflags += [ "-w" ]
@@ -210,6 +212,10 @@ config("extra_warnings") {
    }
  }

+  if (is_gcc) {
+    cflags_cc = [ "-Wdeprecated-copy" ]
+  }
+
  if (angle_is_winuwp) {
    cflags += [ "/wd4447" ]  # 'main' signature found without threading model.
  }