fix link error in PE/COFF

Author: poor-circle

libcxx/include/__configuration/abi.h

@@ -97,6 +97,11 @@
 // so disable it.
 #    define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS
 #  endif
+// The PE/COFF format reports a linking error when encountering multiple symbol definitions where at least one is a
+// strong symbol. So we can't inlining a function without ABI breakchange.
+#  if defined(_LIBCPP_OBJECT_FORMAT_COFF)
+#    define _LIBCPP_DISABLE_INLINE_OPTIMIZE_BECAUSE_MULTIPLY_SYMBOLS_ERROR
+#  endif
 // Feature macros for disabling pre ABI v1 features. All of these options
 // are deprecated.
 #  if defined(__FreeBSD__)

libcxx/include/__memory/align.h

@@ -36,11 +36,18 @@ __align_impl(size_t __align, size_t __sz, void*& __ptr, size_t& __space) {
 }
 
 #ifndef _LIBCPP_EXPORT_ALIGN_SYMBOL
+#  ifdef _LIBCPP_DISABLE_INLINE_OPTIMIZE_BECAUSE_MULTIPLY_SYMBOLS_ERROR
+
+_LIBCPP_EXPORTED_FROM_ABI void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space);
+
+#  else
 
 inline _LIBCPP_HIDE_FROM_ABI void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space) {
   return __align_impl(__align, __sz, __ptr, __space);
 }
 
+#  endif //  _LIBCPP_DISABLE_INLINE_OPTIMIZE_BECAUSE_MULTIPLY_SYMBOLS_ERROR
+
 #endif // _LIBCPP_EXPORT_ALIGN_SYMBOL
 
 _LIBCPP_END_NAMESPACE_STD

libcxx/src/memory.cpp

@@ -140,6 +140,7 @@ __sp_mut& __get_sp_mut(const void* p) {
 _LIBCPP_EXPORTED_FROM_ABI void* align(size_t alignment, size_t size, void*& ptr, size_t& space) {
   return __align_impl(alignment, size, ptr, space);
 }
+
 #endif // _LIBCPP_EXPORT_ALIGN_SYMBOL
 
 _LIBCPP_END_NAMESPACE_STD