diff --git a/brltty.spec b/brltty.spec
index 1a78e4f..7d8fc9f 100644
--- a/brltty.spec
+++ b/brltty.spec
@@ -7,9 +7,6 @@
 %{!?tcl_version: %define tcl_version %(echo 'puts $tcl_version' | tclsh)}
 %{!?tcl_sitearch: %define tcl_sitearch %{_prefix}/%{_lib}/tcl%{tcl_version}}
 
-%define _exec_prefix %{nil}
-%define _libdir /%{_lib}
-
 %define _jnidir        %{_prefix}/%{_lib}/java
 
 # with speech dispatcher iff on Fedora:
@@ -91,6 +88,7 @@ Group: Development/System
 License: LGPLv2+
 Requires: brlapi = %{api_version}-%{release}
 Summary: Headers, static archive, and documentation for BrlAPI
+Conflicts: filesystem < 3
 
 %description -n brlapi-devel
 This package provides the header files, static archive, shared object
@@ -154,6 +152,9 @@ for i in -I/usr/lib/jvm/java/include{,/linux}; do
 done
 # there is no curses packages in BuildRequires, so the package builds
 # without them in mock; let's express this decision explicitly
+
+### FIXME: the configure script expects /usr/lib/java to be present
+
 %configure CPPFLAGS="$java_inc" --disable-stripping --without-curses \
 %if %{with_speech_dispatcher}
   --with-speechd=%{_prefix} \
@@ -186,8 +187,6 @@ done
 rm -rf $RPM_BUILD_ROOT
 # does not seem to be parallel safe
 make install
-rm "$RPM_BUILD_ROOT%{_libdir}/libbrlapi.so"
-ln -s ../../%{_lib}/libbrlapi.so "$RPM_BUILD_ROOT%{_prefix}/%{_lib}/"
 install -d -m 755 "${RPM_BUILD_ROOT}%{_sysconfdir}" "$RPM_BUILD_ROOT%{_mandir}/man5"
 install -m 644 Documents/brltty.conf "${RPM_BUILD_ROOT}%{_sysconfdir}"
 echo ".so man1/brltty.1" > $RPM_BUILD_ROOT%{_mandir}/man5/brltty.conf.5
@@ -197,7 +196,7 @@ rm Documents/Manual-*/*/{*.mk,*.made,Makefile*}
 mv Documents/BrlAPIref/{html,BrlAPIref}
 
 # Don't want static lib
-rm -rf $RPM_BUILD_ROOT/%{_lib}/libbrlapi.a
+rm -rf $RPM_BUILD_ROOT/%{_libdir}/libbrlapi.a
 
 %clean
 rm -rf $RPM_BUILD_ROOT
@@ -271,7 +270,7 @@ exit 0
 
 %files -n brlapi-devel
 %defattr(-,root,root)
-%{_prefix}/%{_lib}/libbrlapi.so
+%{_libdir}/libbrlapi.so
 %{_includedir}/brltty
 %{_includedir}/brlapi*.h
 %doc %{_mandir}/man3/brlapi_*.3*