Split COMPONENT_EMBED_FILES over multiple lines?

Is it possible to split the build_flags = -DCOMPONENT_EMBED_FILES=file1.bin:file2.bin type entry over multiple lines? I have tried but just get a compile error and was wondering if there was a continuation character I can use?

Eg.
build_flags = -DCOMPONENT_EMBED_FILES=
file1.bin:
file2.bin

If you want to include many files this single line get difficult to manage.

Don’t use the macro. Use Espressif 32 — PlatformIO latest documentation.

That’s perfect. Thanks.