From 1b0a24a9bd39cfd5c7cb5912eb826213a82c6cde Mon Sep 17 00:00:00 2001
From: Nadia Holmquist Pedersen <nadia@nhp.sh>
Date: Sat, 14 Nov 2020 13:29:47 +0100
Subject: [PATCH] Fix LTO builds with Clang (#815)

---
 CMakeLists.txt | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e672ed68..cce9d6d5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,17 +65,19 @@ if (CMAKE_BUILD_TYPE STREQUAL Release)
 	add_link_options(-s)
 endif()
 
-add_link_options(-no-pie)
-
 if (ENABLE_LTO)
 	add_compile_options(-flto)
 	add_link_options(-flto)
 
-	set(CMAKE_AR "gcc-ar")
-	set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> qcs <TARGET> <LINK_FLAGS> <OBJECTS>")
-	set(CMAKE_C_ARCHIVE_FINISH   true)
-	set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> qcs <TARGET> <LINK_FLAGS> <OBJECTS>")
-	set(CMAKE_CXX_ARCHIVE_FINISH   true)
+	if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+		set(CMAKE_AR "gcc-ar")
+		set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> qcs <TARGET> <LINK_FLAGS> <OBJECTS>")
+		set(CMAKE_C_ARCHIVE_FINISH   true)
+		set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> qcs <TARGET> <LINK_FLAGS> <OBJECTS>")
+		set(CMAKE_CXX_ARCHIVE_FINISH   true)
+	elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+		set(CMAKE_AR "llvm-ar")
+	endif()
 endif()
 
 option(BUILD_QT_SDL "Build Qt/SDL frontend" ON)