switchsh version 0~20070801-3 FTBFS on i386 in precise

This is a semi-automatic report based on the latest archive rebuild results [1].
Apologies if it reaches you in error.

Excerpt from the buildlog:

 debian/rules build
test -x debian/rules
mkdir -p "."
/usr/bin/make -f debian/rules reverse-config
make[1]: Entering directory `/build/buildd/switchsh-0~20070801'
make[1]: Nothing to be done for `reverse-config'.
make[1]: Leaving directory `/build/buildd/switchsh-0~20070801'
cd . && QUILT_PATCHES=/build/buildd/switchsh-0~20070801/debian/patches quilt --quiltrc /dev/null push -a || test $? = 2
Applying patch use_execvp.patch
patching file switchsh.c

Now at patch use_execvp.patch
touch debian/stamp-patched
/usr/bin/make -f debian/rules update-config
make[1]: Entering directory `/build/buildd/switchsh-0~20070801'
make[1]: Nothing to be done for `update-config'.
make[1]: Leaving directory `/build/buildd/switchsh-0~20070801'
cc -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -pedantic -Werror -Wextra -Wformat -Wformat-security -s switchsh.c -o switchsh
switchsh.c: In function 'main':
switchsh.c:97:17: error: 'CLONE_NEWNS' undeclared (first use in this function)
switchsh.c:97:17: note: each undeclared identifier is reported only once for each function it appears in
make: *** [build/switchsh] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20120211-1315
FAILED [dpkg-buildpackage died]

The full buidlog can be found at https://launchpad.net/ubuntu/+archive/test-rebuild-20120201/+build/3172499/+files/buildlog_ubuntu-precise-i386.switchsh_0~20070801-3_FAILEDTOBUILD.txt.gz.

[1] http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20120201-precise.html