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Changes between Initial Version and Version 1 of Ticket #65161, comment 1

initial	v1
23	23	I don't see anything in the nano build that sets `_POSIX_C_SOURCE`, however I do see `-D_APPLE_C_SOURCE -D_XOPEN_SOURCE=600` being used, and in /usr/include/sys/cdefs.h I see that if `_XOPEN_SOURCE` is defined and great than or equal to 500, then `_POSIX_C_SOURCE` will be defined.
24	24
25		So the problem seems to be that when nano's configure script checked to see what members were in the ~~the~~ `stat` structure, it didn't use `-D_XOPEN_SOURCE=600` so it saw that `st_atimespec` et al were available, but then when it tried to compile the actual program it did use `-D_XOPEN_SOURCE=600` which made `st_atimespec` et al unavailable. nano needs to use the same flags at configure time as it does at build time.
	25	So the problem seems to be that when nano's configure script checked to see what members were in the `stat` structure, it didn't use `-D_XOPEN_SOURCE=600` so it saw that `st_atimespec` et al were available, but then when it tried to compile the actual program it did use `-D_XOPEN_SOURCE=600` which made `st_atimespec` et al unavailable. nano needs to use the same flags at configure time as it does at build time.
26	26
27	27	From config.log, it looks like `-D_XOPEN_SOURCE=600` is coming from ncurses: