Commitf3bd00c

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Add support for Motorola 88K to s_lock.h.

Apparently there are still people out there who care about this oldarchitecture. They probably care about dusty versions of Postgrestoo, so back-patch to all supported branches.David Carlier (from a patch being carried by OpenBSD packagers)Discussion:https://postgr.es/m/CA+XhMqzwFSGVU7MEnfhCecc8YdP98tigXzzpd0AAdwaGwaVXEA@mail.gmail.com

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Original file line number	Diff line number	Diff line change
`@@ -543,6 +543,30 @@ tas(volatile slock_t *lock)`
`543`	`543`	`#endif/* (__mc68000__ \|\| __m68k__) && __linux__ */`
`544`	`544`
`545`	`545`
	`546`	`+/* Motorola 88k */`
	`547`	`+#if defined(__m88k__)`
	`548`	`+#defineHAS_TEST_AND_SET`
	`549`	`+`
	`550`	`+typedefunsignedintslock_t;`
	`551`	`+`
	`552`	`+#defineTAS(lock) tas(lock)`
	`553`	`+`
	`554`	`+static __inline__int`
	`555`	`+tas(volatileslock_t*lock)`
	`556`	`+{`
	`557`	`+registerslock_t_res=1;`
	`558`	`+`
	`559`	`+__asm__ __volatile__(`
	`560`	`+"xmem%0, %2, %%r0\n"`
	`561`	`+:"+r"(_res),"+m"(*lock)`
	`562`	`+:"r"(lock)`
	`563`	`+:"memory");`
	`564`	`+return (int)_res;`
	`565`	`+}`
	`566`	`+`
	`567`	`+#endif/* __m88k__ */`
	`568`	`+`
	`569`	`+`
`546`	`570`	`/*`
`547`	`571`	`* VAXen -- even multiprocessor ones`
`548`	`572`	`* (thanks to Tom Ivar Helbekkmo)`

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