+BEGIN {
+ %::const = map { $_ => 1 } (
+ "XCBNone",
+ "XCBCopyFromParent",
+ "XCBCurrentTime",
+ "XCBNoSymbol",
+ "XCBError",
+ "XCBReply",
+ );
+ open(CONST, shift) or die "failed to open constants list: $!";
+ while(<CONST>)
+ {
+ chomp;
+ die "invalid constant name: \"$_\"" unless /^XCB[A-Za-z0-9_]*$/;
+ $::const{$_} = 1;
+ }
+ close(CONST);
+}
+