From 03f2e4dc12812e883b11cf0109166a6eed8059dd Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Thu, 13 Feb 2025 10:02:00 -0500
Subject: configure: Add separate --enable-lto knob

---
 build/flags.mk | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'build')

diff --git a/build/flags.mk b/build/flags.mk
index 9f552a8..462f74b 100644
--- a/build/flags.mk
+++ b/build/flags.mk
@@ -30,6 +30,9 @@ _GCOV := ${TRUTHY,${GCOV}}
 _LINT := ${TRUTHY,${LINT}}
 _RELEASE := ${TRUTHY,${RELEASE}}
 
+LTO ?= ${RELEASE}
+_LTO := ${TRUTHY,${LTO}}
+
 ASAN_CFLAGS,y := -fsanitize=address
 LSAN_CFLAGS,y := -fsanitize=leak
 MSAN_CFLAGS,y := -fsanitize=memory -fsanitize-memory-track-origins
@@ -62,11 +65,14 @@ _CPPFLAGS += ${LINT_CPPFLAGS,${_LINT}}
 _CFLAGS += ${LINT_CFLAGS,${_LINT}}
 
 RELEASE_CPPFLAGS,y := -DNDEBUG
-RELEASE_CFLAGS,y := -O3 -flto=auto
+RELEASE_CFLAGS,y := -O3
 
 _CPPFLAGS += ${RELEASE_CPPFLAGS,${_RELEASE}}
 _CFLAGS += ${RELEASE_CFLAGS,${_RELEASE}}
 
+LTO_CFLAGS,y := -flto=auto
+_CFLAGS += ${LTO_CFLAGS,${_LTO}}
+
 # Configurable flags
 CFLAGS ?= -g -Wall
 
-- 
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