[zeromq/el5] remove buildroot before installing (needed for el5)

[tomspur]

commit 5383752075a03b6d9c1f41f1f4d2fe9fcb202b58
Author: Thomas Spura <thomas.spura at gmail.com>
Date:   Wed Sep 21 19:25:39 2011 +0200

    remove buildroot before installing (needed for el5)

 zeromq.spec |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/zeromq.spec b/zeromq.spec
index bcc543a..dd94f6e 100644
--- a/zeromq.spec
+++ b/zeromq.spec
@@ -57,6 +57,7 @@ make %{?_smp_mflags}
 
 
 %install
+rm -rf %{buildroot}
 make install DESTDIR=%{buildroot} INSTALL="install -p"
 
 # remove *.la