[nginx/f13/master] add kernel requires for aio

[jjh]

commit e0414656e8abe89d2eb5d780a412b8718ba069ba
Author: Jeremy Hinegardner <jeremy at hinegardner.org>
Date:   Wed Apr 27 20:54:15 2011 -0600

    add kernel requires for aio

 nginx.spec |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/nginx.spec b/nginx.spec
index ff37716..739b5d9 100644
--- a/nginx.spec
+++ b/nginx.spec
@@ -23,6 +23,8 @@ BuildRequires:      pcre-devel,zlib-devel,openssl-devel,perl-devel,perl(ExtUtils
 BuildRequires:      libxslt-devel,GeoIP-devel,gd-devel
 Requires:           pcre,openssl,GeoIP,gd
 Requires:           perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
+# for aio
+Requires:           kernel >= 2.6.18-181
 # for /usr/sbin/useradd
 Requires(pre):      shadow-utils
 Requires(post):     chkconfig