From afc02357cda0226f1ad0b9b1b3460a43166eeb85 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Fri, 15 Mar 2024 02:26:35 +0000
Subject: dev-util/rr: don't force LTO

We leave it up to users to set.

(That said, this did help find a GCC bug: https://gcc.gnu.org/PR14232).

Signed-off-by: Sam James <sam@gentoo.org>
---
 dev-util/rr/files/rr-5.7.0-no-force-lto.patch | 23 +++++++++++++++++++++++
 dev-util/rr/rr-5.7.0.ebuild                   |  4 ++++
 2 files changed, 27 insertions(+)
 create mode 100644 dev-util/rr/files/rr-5.7.0-no-force-lto.patch

diff --git a/dev-util/rr/files/rr-5.7.0-no-force-lto.patch b/dev-util/rr/files/rr-5.7.0-no-force-lto.patch
new file mode 100644
index 000000000000..f9665f435f4c
--- /dev/null
+++ b/dev-util/rr/files/rr-5.7.0-no-force-lto.patch
@@ -0,0 +1,23 @@
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -118,7 +118,6 @@ if(LOWERCASE_CMAKE_BUILD_TYPE STREQUAL "debug")
+   set(RR_FLAGS "${RR_FLAGS_DEBUG} -g3 ")
+ elseif(LOWERCASE_CMAKE_BUILD_TYPE STREQUAL "release")
+   # CMake itself will add optimization flags
+-  set(RR_FLAGS "${RR_FLAGS_RELEASE} -g3 -flto")
+ endif()
+ 
+ set(LINKER_FLAGS "")
+@@ -675,12 +674,6 @@ endif()
+ 
+ # Add -flto option to linking step if release
+ if(LOWERCASE_CMAKE_BUILD_TYPE STREQUAL "release")
+-  CHECK_C_COMPILER_FLAG("-flto=auto" SUPPORTS_LTO_AUTO)
+-  if(SUPPORTS_LTO_AUTO)
+-    set(RR_MAIN_LINKER_FLAGS "${RR_MAIN_LINKER_FLAGS} -flto=auto")
+-  else()
+-    set(RR_MAIN_LINKER_FLAGS "${RR_MAIN_LINKER_FLAGS} -flto")
+-  endif()
+ endif()
+ 
+ if(LIBRT)
diff --git a/dev-util/rr/rr-5.7.0.ebuild b/dev-util/rr/rr-5.7.0.ebuild
index d8ae5a3fd5c7..ab0fca41cd19 100644
--- a/dev-util/rr/rr-5.7.0.ebuild
+++ b/dev-util/rr/rr-5.7.0.ebuild
@@ -43,6 +43,10 @@ QA_FLAGS_IGNORED="
 
 RESTRICT="test" # toolchain and kernel version dependent
 
+PATCHES=(
+	"${FILESDIR}"/${PN}-5.7.0-no-force-lto.patch
+)
+
 pkg_setup() {
 	if use kernel_linux; then
 		CONFIG_CHECK="SECCOMP"
-- 
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