Build the xnnpack backend and libraries with -fPIC

This fixes a linking problem on some x86_64 systems when building extension/pybindings.
pytorch · Apr 2, 2024 · 67f9392 · 67f9392
1 parent daa217f
commit 67f9392
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/backends/xnnpack/CMakeLists.txt b/backends/xnnpack/CMakeLists.txt
@@ -32,6 +32,11 @@ if(NOT PYTHON_EXECUTABLE)
   resolve_python_executable()
 endif()
 
+# Build with -fPIC for targets in this directory and in all subdirectories that
+# it includes. This is required to link libXNNPACK.a into shared libraries on
+# some x86_64 systems.
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
 set(_common_include_directories ${EXECUTORCH_ROOT}/..)
 set(_common_compile_options -Wno-deprecated-declarations)