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[bug #57751] Improve POSIX support for SCCS

From: Paul D. Smith
Subject: [bug #57751] Improve POSIX support for SCCS
Date: Sun, 8 Nov 2020 08:57:18 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36

Follow-up Comment #15, bug #57751 (project make):

RE: what POSIX says about internal macros and where they are valid: I agree
with Jörg that no POSIX-based make supports $@ in prerequisite lists. 
However I agree with Bruce that the standard is at best ambiguous about this
and I've filed:


to request clarification.

RE: handling $$@ : it's not true that GNU make doesn't support this: GNU make
_DOES_ support this syntax but you have to enable it; see:


There has been thought about making it enabled by default but it hasn't
happened yet.


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