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unix: emit +build comments in generator scripts
Change-Id: I8ed64dcb1c1a2119ce6f15fa1be55fbe0b0c637e Reviewed-on: https://go-review.googlesource.com/10087 Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Minux Ma <minux@golang.org> Reviewed-by: Dave Cheney <dave@cheney.net>
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@@ -38,6 +38,11 @@ if($ARGV[0] =~ /^-/) {
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exit 1;
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}
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if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
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print STDERR "GOARCH or GOOS not defined in environment\n";
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exit 1;
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}
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sub parseparamlist($) {
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my ($list) = @_;
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$list =~ s/^\s*//;
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@@ -260,6 +265,8 @@ print <<EOF;
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// $cmdline
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// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
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// +build $ENV{'GOARCH'},$ENV{'GOOS'}
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package $package
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import "unsafe"
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