The build error is something along the lines of:

[  154s] /home/abuild/rpmbuild/BUILD/vlc-3.0.18/modules/codec/mpg123.c:282: undefined reference to `mpg123_decode_frame_64'


Looking at the code, this does look like an mpg123 own-introduced error.

e.g vlc does, in line 282 (as referenced in the error)

        i_err = mpg123_decode_frame( p_sys->p_handle, NULL, NULL, &i_bytes );
(note, no _64 suffix)

mpg123.h defines mpeg123_decode_frame like this:

#define mpg123_decode_frame MPG123_LARGENAME(mpg123_decode_frame)


#define MPG123_LARGENAME(func) MPG123_MACROCAT(func, MPG123_LARGESUFFIX)
which leads to:
#define MPG123_LARGESUFFIX MPG123_MACROCAT(_, _FILE_OFFSET_BITS)

here, the _64 suffix is added..

mpg123 update just declared:

- Update to version 1.32.2
+  * libmpg123: Re-introduce _64 symbols on native 64 bit offset
+    platforms. This was a regression since 1.31 series. Sorry,
+    too much cleanup, not enough testing.

=> confirming that my analysis above was correct; VLC builds with this version of mpg123