diff --git a/libaio.spec b/libaio.spec
index e48c568..f79d536 100644
--- a/libaio.spec
+++ b/libaio.spec
@@ -8,6 +8,7 @@ Source: ftp://ftp.kernel.org/pub/linux/libs/aio/%{name}-%{version}.tar.gz
 BuildRoot: %{_tmppath}/%{name}-root
 Patch1: libaio-install-to-slash.patch
 Patch2: libaio-sparc.patch
+Conflicts: filesystem < 3
 
 %description
 The Linux-native asynchronous I/O facility ("async I/O", or "aio") has a
@@ -17,9 +18,6 @@ The POSIX async I/O facility requires this library in order to provide
 kernel-accelerated async I/O capabilities, as do applications which
 require the Linux-native async I/O API.
 
-%define libdir /%{_lib}
-%define usrlibdir %{_prefix}/%{_lib}
-
 %package devel
 Summary: Development files for Linux-native asynchronous I/O access
 Group: Development/System
@@ -49,9 +47,9 @@ make
 [ "$RPM_BUILD_ROOT" != "/" ] && rm -rf $RPM_BUILD_ROOT
 cd compat-%{name}-%{version}
 install -D -m 755 src/libaio.so.1.0.0 \
-  $RPM_BUILD_ROOT/%{libdir}/libaio.so.1.0.0
+  $RPM_BUILD_ROOT/%{_libdir}/libaio.so.1.0.0
 cd ..
-make destdir=$RPM_BUILD_ROOT prefix=/ libdir=%{libdir} usrlibdir=%{usrlibdir} \
+make destdir=$RPM_BUILD_ROOT prefix=/ libdir=%{_libdir} usrlibdir=%{_libdir} \
 	includedir=%{_includedir} install
 
 %clean
@@ -63,13 +61,13 @@ make destdir=$RPM_BUILD_ROOT prefix=/ libdir=%{libdir} usrlibdir=%{usrlibdir} \
 
 %files
 %defattr(-,root,root)
-%attr(0755,root,root) %{libdir}/libaio.so.*
+%attr(0755,root,root) %{_libdir}/libaio.so.*
 %doc COPYING TODO
 
 %files devel
 %defattr(-,root,root)
 %attr(0644,root,root) %{_includedir}/*
-%attr(0755,root,root) %{usrlibdir}/libaio.so*
+%attr(0755,root,root) %{_libdir}/libaio.so
 %exclude %{_libdir}/libaio.a
 
 %changelog