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From: Mike Hommey <mh@glandium.org>
Date: Sun, 14 Aug 2022 15:05:23 +0900
Subject: Allow to override rust LTO flag
---
config/makefiles/rust.mk | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/config/makefiles/rust.mk b/config/makefiles/rust.mk
index 52c4e40..da99acf 100644
--- a/config/makefiles/rust.mk
+++ b/config/makefiles/rust.mk
@@ -92,8 +92,9 @@ ifndef rustflags_sancov
# Never enable when coverage is enabled to work around https://github.com/rust-lang/rust/issues/90045.
ifndef MOZ_CODE_COVERAGE
ifeq (,$(findstring gkrust_gtest,$(RUST_LIBRARY_FILE)))
-cargo_rustc_flags += -Clto$(if $(filter full,$(MOZ_LTO_RUST_CROSS)),=fat)
+cargo_rustc_flags += $(or $(DEBIAN_RUST_LTO),-Clto$(if $(filter full,$(MOZ_LTO_RUST_CROSS)),=fat))
endif
+ifneq (-Clto=off,$(DEBIAN_RUST_LTO))
# We need -Cembed-bitcode=yes for all crates when using -Clto.
RUSTFLAGS += -Cembed-bitcode=yes
endif
@@ -101,6 +102,7 @@ endif
endif
endif
endif
+endif
ifdef CARGO_INCREMENTAL
export CARGO_INCREMENTAL
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