Merge pull request #7689

f93db0d clang: fix -pie flag (selsta)

CMakeLists.txt

@@ -749,7 +749,12 @@ 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)