Keep RTTI for Minetest IPO/LTO

Minetest using RTTI, so we cannot apply the flag here if we want to start using IPO/LTO. If we keep `-fno-rtti` here, compiler loses part of informations and cannot do efficient optimizations. The benefit of using RTTI on Irrlicht disappears with IPO/LTO on whole binary. Signed-off-by: David Heidelberg <[email protected]>
minetest · Jan 6, 2024 · 73e62f8 · 73e62f8
1 parent fb4ee6a
commit 73e62f8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/source/Irrlicht/CMakeLists.txt b/source/Irrlicht/CMakeLists.txt
@@ -29,7 +29,7 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "^(GNU|Clang|AppleClang)$")
 	set(CMAKE_CXX_FLAGS_RELEASE "-O3")
 	set(CMAKE_CXX_FLAGS_DEBUG "-g")
 
-	add_compile_options(-Wall -pipe -fno-exceptions -fno-rtti)
+	add_compile_options(-Wall -pipe -fno-exceptions)
 
 	# Enable SSE for floating point math on 32-bit x86 by default
 	# reasoning see minetest issue #11810 and https://gcc.gnu.org/wiki/FloatingPointMath