From f93db0d46a3c7a4e2d09104ef8207992f8e7c347 Mon Sep 17 00:00:00 2001
From: selsta <selsta@sent.at>
Date: Tue, 27 Apr 2021 05:50:16 +0200
Subject: [PATCH] clang: fix -pie flag

---
 CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e858b3aaf..06dcd7201 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -737,7 +737,12 @@ else()
     # PIE executables randomly crash at startup with ASAN
     # Windows binaries die on startup with PIE when compiled with GCC <9.x
     # Windows dynamically-linked binaries die on startup with PIE regardless of GCC version
-    add_linker_flag_if_supported(-pie LD_SECURITY_FLAGS)
+    if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
+      # Clang does not support -pie flag
+      add_linker_flag_if_supported("-Wl,-pie" LD_SECURITY_FLAGS)
+    else()
+      add_linker_flag_if_supported("-pie" LD_SECURITY_FLAGS)
+    endif()
   endif()
   add_linker_flag_if_supported(-Wl,-z,relro LD_SECURITY_FLAGS)
   add_linker_flag_if_supported(-Wl,-z,now LD_SECURITY_FLAGS)