From 5a885b541f7aad3dfcc76f522d4deec274cc91e4 Mon Sep 17 00:00:00 2001
From: Lephenixnoir <sebastien.michelland@protonmail.com>
Date: Sun, 26 May 2024 18:18:39 +0200
Subject: [PATCH] enable LTO

---
 CMakeLists.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5ce1981..1bf82e9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,13 +40,19 @@ add_library(${NAME} STATIC
 )
 
 target_compile_options(${NAME} PUBLIC
-  -Wall -Wextra -std=c11 -Os)
+  -Wall -Wextra -std=c11 -Os -flto)
 target_include_directories(${NAME} PUBLIC
   "${CMAKE_CURRENT_SOURCE_DIR}/include"
   "${CMAKE_CURRENT_BINARY_DIR}/include")
 target_link_libraries(${NAME}
   Gint::Gint -lm)
 
+# Generate the archive with gcc-ar instead of ar as it will load the LTO plugin
+# which is required to generate a usable archive.
+set(CMAKE_C_ARCHIVE_CREATE "${CMAKE_C_COMPILER_AR} qcs <TARGET> <OBJECTS>")
+# Also the ranlib rule (useless because ar is passed the s flag anyway)
+set(CMAKE_C_ARCHIVE_FINISH "${CMAKE_C_COMPILER_RANLIB} <TARGET>")
+
 install(TARGETS ${NAME}
   DESTINATION "${FXSDK_LIB}")
 install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/"