X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?p=subdirmk.git;a=blobdiff_plain;f=README;h=4493a0da2f146b5bf9121f09aa780ee9b3ee5cfa;hp=2f1a1ce4ae4f1ba66813fac327f36db73a9a6112;hb=b0bdaa30dd60890b5494fab1f3e7f5d70a8ceb8e;hpb=f2f72a3200b1d81fa84232c03834addbe1bc3547

diff --git a/README b/README
index 2f1a1ce..4493a0d 100644
--- a/README
+++ b/README
@@ -174,10 +174,11 @@ So pathname syntax is a subset of:
 	by the final warning state after processing all the toplevel
 	input files (including Final.sd.mk).
 
-&:local+global [&]VARIABLE ...
-	Suppresses the warning about seeing both VARIABLE and
-	&VARIABLE.  Any & specified in the RHS is redundant: this
-	always affects both versions identically.
+&:local+global [!][&]VARIABLE ...
+	Suppresses any warnings relating to forthcoming mentions
+	to VARIABLE or &VARIABLE, as applicable.  Scope ends at
+	the end of the current directory's Suffix.sd.mk.
+	Prefixing with ! removes [&]VARIABLE from the suppresion list.
 
 &:changequote NEWQUOTE
 	changes the escape sequence from & to literally NEWQUOTE
@@ -218,7 +219,7 @@ STUFF $ THINGS	..	STUFF $$ THINGS
 &:endm		..	endef
 	NAME is processed for &
 
-&${..$..} =>	${eval ${call ..$$..}}
+&${..$..}	=>	${eval ${call ..$$..}}
 	(matches { } pairs to find the end)
 	content is $-doubled (unless it contains &$- to turn that off)