gtk+-2.0??? Where do I get one?

[QuickSilver]

Okay, I am building an app using glade. All good til I am running autogen file and getting the following output :

quicksilver@quickbox:~/pro$ ./autogen.sh
**Warning**: I am going to run `configure' with no arguments.
If you wish to pass any to it, please specify them on the
`./autogen.sh' command line.

processing .
Creating ./aclocal.m4 ...
Running glib-gettextize... Ignore non-fatal messages.
Copying file mkinstalldirs
Copying file po/Makefile.in.in

Please add the files
codeset.m4 gettext.m4 glibc21.m4 iconv.m4 isc-posix.m4 lcmessage.m4
progtest.m4
from the /usr/share/aclocal directory to your autoconf macro directory
or directly to your aclocal.m4 file.
You will also need config.guess and config.sub, which you can get from
ftp://ftp.gnu.org/pub/gnu/config/.

Making ./aclocal.m4 writable ...
Running aclocal ...
Running autoheader...
Running automake --gnu ...
Running autoconf ...
Running ./configure --enable-maintainer-mode ...
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets $(MAKE)... yes
checking for working aclocal-1.4... found
checking for working autoconf... found
checking for working automake-1.4... found
checking for working autoheader... found
checking for working makeinfo... missing
checking whether to enable maintainer-specific portions of Makefiles... yes
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for library containing strerror... none required
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ANSI C... (cached) none needed
checking for gcc option to accept ANSI C... none needed
checking how to run the C preprocessor... gcc -E
checking for egrep... grep -E
checking for ANSI C header files... yes
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for PACKAGE... configure: error: Package requirements (gtk+-2.0 >= 2.0.0) were not met.
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively you may set the PACKAGE_CFLAGS and PACKAGE_LIBS environment variables
to avoid the need to call pkg-config. See the pkg-config man page for
more details.

does anybody know what package i choose to get gtl+-2.0?!!

[burnit]

apt-get install libgtk-2.0

[psic]

Since you need this to compile something by hand, try
apt-get install libgtk-2.0-dev