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-rw-r--r--source/xap/mozilla-firefox/0027-LTO-Only-enable-LTO-for-Rust-when-complete-build-use.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/source/xap/mozilla-firefox/0027-LTO-Only-enable-LTO-for-Rust-when-complete-build-use.patch b/source/xap/mozilla-firefox/0027-LTO-Only-enable-LTO-for-Rust-when-complete-build-use.patch
new file mode 100644
index 00000000..387a65ad
--- /dev/null
+++ b/source/xap/mozilla-firefox/0027-LTO-Only-enable-LTO-for-Rust-when-complete-build-use.patch
@@ -0,0 +1,34 @@
+From 8ae6defd8340a13d88977d9973abd79495a99fcd Mon Sep 17 00:00:00 2001
+From: Thomas Deutschmann <whissi@gentoo.org>
+Date: Sat, 29 Aug 2020 22:30:59 +0200
+Subject: [PATCH 27/30] LTO: Only enable LTO for Rust when complete build uses
+ LTO
+
+Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>
+---
+ config/makefiles/rust.mk | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/config/makefiles/rust.mk b/config/makefiles/rust.mk
+index 92f3070a85..0d72914c43 100644
+--- a/config/makefiles/rust.mk
++++ b/config/makefiles/rust.mk
+@@ -64,6 +64,7 @@ endif
+ # These flags are passed via `cargo rustc` and only apply to the final rustc
+ # invocation (i.e., only the top-level crate, not its dependencies).
+ cargo_rustc_flags = $(CARGO_RUSTCFLAGS)
++ifdef MOZ_LTO
+ ifndef DEVELOPER_OPTIONS
+ ifndef MOZ_DEBUG_RUST
+ # Enable link-time optimization for release builds, but not when linking
+@@ -77,6 +78,7 @@ RUSTFLAGS += -Cembed-bitcode=yes
+ endif
+ endif
+ endif
++endif
+
+ ifdef CARGO_INCREMENTAL
+ export CARGO_INCREMENTAL
+--
+2.31.0
+