syscall, internal/poll: fix build on js/wasm

Fixes #26014

Change-Id: I9d92414a9181c5d189e3e266666950656bf00406
Reviewed-on: https://go-review.googlesource.com/120576
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/syscall/net_js.go b/src/syscall/net_js.go
index 0149e2bfc5..d5bf1f4f99 100644
--- a/src/syscall/net_js.go
+++ b/src/syscall/net_js.go
@@ -38,6 +38,13 @@ const (
 	SO_ERROR
 )
 
+// Misc constants expected by package net but not supported.
+const (
+	_ = iota
+	F_DUPFD_CLOEXEC
+	SYS_FCNTL = 500 // unsupported; same value as net_nacl.go
+)
+
 type Sockaddr interface {
 }