What result/error message did you get?
I installed system.devel today and it went ok.
$ LC_ALL=C sudo pisi it -c system.devel
The following package(s) are already installed and are not going to be installed again:
ConsoleKit-devel acl-devel attr-devel audit-devel autoconf automake
binutils bison catbox ccache chrpath cloog-ppl
cloog-ppl-devel cmake cracklib-devel curl-devel db4-devel dbus-devel
dbus-glib-devel dietlibc dietlibc-libdevmapper diffstat e2fsprogs-devel elfutils
expat-devel flex gcc gdbm-devel gettext-devel glib2-devel
glibc-devel glpk glpk-devel gmp gmp-devel gnuconfig
icecream icecream-scheduler intltool kernel-headers klibc libX11-devel
libXau-devel libXdmcp-devel libarchive libarchive-devel libcap-devel libcap-ng-devel
libffi-devel libgfortran libgomp libgudev1-devel libidn-devel libmpc
libmpc-devel libobjc libpcre-devel libpng-devel libsigsegv libssh2-devel
libtool libudev-devel libunwind libunwind-devel libusb-devel libuser-devel
libxcb-devel libxml2-devel m4 make mpfr mpfr-devel
nasm ncurses-devel openssl-devel pam-devel patch pciutils-devel
perl-XML-Parser pkgconfig polkit-devel popt-devel ppl ppl-devel
python-devel python-setuptools quilt readline-devel scons skey-devel
slang-devel sqlite-devel swig sysfsutils-devel tcp-wrappers-devel uClibc
uClibc-devel unifdef unsermake util-macros wireless-tools-devel xcb-proto
xorg-proto xorg-util xtrans xz-devel yacc yasm
zlib-devel
No packages to install.
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