Error compiling sepgsql in PG9.1

I had the following error during compile of sepgsqk contrib:

root(at)postgresql:~/postgresql-9.1beta1/contrib/sepgsql# make
sed 's,MODULE_PATHNAME,$libdir/sepgsql,g' sepgsql.sql.in >sepgsql.sql
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Wendif-labels -Wformat-security
-fno-strict-aliasing -fwrapv -fpic -I. -I. -I../../src/include
-D_GNU_SOURCE -I/usr/include/libxml2 -c -o hooks.o hooks.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Wendif-labels -Wformat-security
-fno-strict-aliasing -fwrapv -fpic -I. -I. -I../../src/include
-D_GNU_SOURCE -I/usr/include/libxml2 -c -o selinux.o selinux.c
selinux.c: In function 'sepgsql_compute_avd':
selinux.c:735: warning: implicit declaration of function 'security_deny_unknown'
selinux.c:755: error: 'struct av_decision' has no member named 'flags'
selinux.c:764: warning: implicit declaration of function
'security_compute_av_flags_raw'
selinux.c: In function 'sepgsql_check_perms':
selinux.c:917: error: 'struct av_decision' has no member named 'flags'
selinux.c:917: error: 'SELINUX_AVD_FLAGS_PERMISSIVE' undeclared (first
use in this function)
selinux.c:917: error: (Each undeclared identifier is reported only once
selinux.c:917: error: for each function it appears in.)
make: *** [selinux.o] Error 1

The selinux version is:

root(at)postgresql:~/postgresql-9.1beta1/contrib/sepgsql# dpkg -l | grep seli
ii libselinux1 2.0.55-0ubuntu4
SELinux policy enforcement, run-time librari
ii libselinux1-dev 2.0.55-0ubuntu4
SELinux policy enforcement, development file

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              Emanuel Calvo
              Helpame.com