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Changes between Version 8 and Version 9 of Ticket #62548, comment 4

v8	v9
2	2	> remove muniversal and get single-step universal building working, but that may be a much bigger undertaking.
3	3
4		It was straightforward, once I understood what was going on, to fix a multiarch build for 10.15+ -- 5 minutes, as above. It becomes a 5-line build, and it builds fine with multiple arch flags if the libraries are the same depth.
	4	It was straightforward, once I understood what was going on, to fix a multiarch build for 10.15+ -- 5 minutes, as above. It becomes a 5-line build, and it builds fine with multiple arch flags if the libraries are the same bit depth.
5	5
6	6	However, you need to build it twice and lipo together for 32bit + 64bit libraries. Using the muniversal PG just on older systems <10.14 does. The proper flag to force the library bit depth is {{{--with-library-bits=64}}} or {{{--with-library-bits=32}}}.