From 66c0c2117852224153a48d920d41b1d5226a5905 Mon Sep 17 00:00:00 2001
From: Antoine Viallon <antoine@lesviallon.fr>
Date: Thu, 23 May 2024 11:01:49 +0200
Subject: [PATCH] [Lib/Optimizations] use special CMake flag for LTO

Should have better and more reliable behavior
---
 lib/optimizations.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/optimizations.nix b/lib/optimizations.nix
index 8b0ef4e..38e6237 100644
--- a/lib/optimizations.nix
+++ b/lib/optimizations.nix
@@ -408,6 +408,9 @@ rec {
         cmakeFlagsArray+=(
           "-DCMAKE_CXX_FLAGS=$CXXFLAGS"
           "-DCMAKE_C_FLAGS=$CFLAGS"
+          ${optionalString lto ''
+          "-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=true"
+          ''}
         )
         
       ''