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From: Edho Arief <edho@myconan.net>
Newsgroups: gmane.comp.lang.ruby.kgio.general
Subject: There's no TCP_NOPUSH in Solaris 10
Date: Sun, 18 Mar 2012 19:45:46 +0700
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The definition of kgio_autopush_read and kgio_autopush_write (in
read_write.c) never happened in Solaris 10: it's not linux and there's
no TCP_NOPUSH anywhere in its system header. It caused error when
running unicorn (and of course the test):

ld.so.1: ruby: fatal: relocation error: file
/home/edho/app/ruby19/lib/ruby/gems/1.9.1/gems/kgio-2.7.3/lib/kgio_ext.so:
symbol kgio_autopush_read: referenced symbol not found
ld.so.1: ruby: fatal: relocation error: file
/home/edho/app/ruby19/lib/ruby/gems/1.9.1/gems/kgio-2.7.3/lib/kgio_ext.so:
symbol kgio_autopush_write: referenced symbol not found

Forcing definition of them enables unicorn to work (at least seems to
be working) but fails test (tried both Linux and BSD version):

  1) Failure:
test_wait_writable_ruby_default(TestUnixServerReadClientWrite)
[/home/edho/git/kgio/test/lib_read_write.rb:289]:
Exception raised:
<Interrupt>.

(it took long time so I stopped it)