Here's a new batch of these: Remove configure probe for sys/uio.h. Remove configure probes for sys/un.h and struct sockaddr_un. Remove configure probe for sys/select.h. Remove configure probes for sys/ipc.h, sys/sem.h, sys/shm.h. Remove configure probe for sys/resource.h and refactor. Remove configure probe for shl_load library.
The most interesting things to say about these ones are: * The concept of a no-Unix-socket build is removed. We should be able to do that now, right? Peter E seemed to say approximately that in the commit message for 797129e5. Or is there a thought that a new operating system might show up that doesn't have 'em and we'd wish we'd kept this stuff well marked out? * Instead of eg HAVE_SYS_RESOURCE_H I supplied <sys/resource.h> and moved the relevant declarations there from the big random-win2-stuff header, and likewise for <sys/un.h> (I still plan to get rid of no-threads-builds soon, but I got stuck figuring out how to make sure I don't break the recent magic ldap library detection... more soon.)
0001-Remove-configure-probe-for-sys-uio.h.patch
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0002-Remove-configure-probes-for-sys-un.h-and-struct-sock.patch
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0003-Remove-configure-probe-for-sys-select.h.patch
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0004-Remove-configure-probes-for-sys-ipc.h-sys-sem.h-sys-.patch
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0005-Remove-configure-probe-for-sys-resource.h-and-refact.patch
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0006-Remove-configure-probe-for-shl_load-library.patch
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