Enable _LIBCPP_DEBUG in Clang for non-Xcode-based debug builds.
Unlike _GLIBCXX_DEBUG, this is meant to not break the ABI.
The libc++ bundled with Xcode does not contain debug symbols so we need
to disable these checks on Mac/iOS.
Change-Id: Ie4f18e247db9c405b2ce45f388c41dcac8104815
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297874
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
diff --git a/gn/BUILD.gn b/gn/BUILD.gn
index 894d312..2df0c26 100644
--- a/gn/BUILD.gn
+++ b/gn/BUILD.gn
@@ -60,6 +60,14 @@
}
}
+ if (is_debug) {
+ if (is_ios || is_mac) {
+ # The libc++ that ships with Xcode does not contain _LIBCPP_DEBUG symbols.
+ } else {
+ defines += [ "_LIBCPP_DEBUG=1" ] # Asserts and iterator debugging.
+ }
+ }
+
# Disable warnings about unknown attributes.
# (These unknown attribute warnings are on by default, so we don't make
# disabling them part of :warnings, as some targets remove :warnings.)
