Package gtk+-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gtk+-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gtk+-2.0' found
configure: error: Package requirements (gtk+-2.0 >= 2.0.0 pango >= 1.0 atk >= 1.0) 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 GTK_CFLAGS and GTK_LIBS environment variables
to avoid the need to call pkg-config.  See the pkg-config man page for
more details.
[root@localhost ettercap-NG-0.7.3]#

checking Carbon/Carbon.h usability... no
checking Carbon/Carbon.h presence... no
checking for Carbon/Carbon.h... no
checking for CAIRO... Package cairo was not found in the pkg-config search path.Perhaps you should add the directory containing `cairo.pc'
to the PKG_CONFIG_PATH environment variable
No package 'cairo' found
no
no
checking for GLIB... Requested 'glib-2.0 >= 2.14.0' but version of GLib is 2.4.7no
configure: error:
*** Glib 2.14.0 or better is required. The latest version of
*** Glib is always available from ftp://ftp.gtk.org/.
[root@localhost pango-1.18.0]#

[root@localhost ~]# rpm -ivh ettercap-0.7.3-1.rf.src.rpm
warning: ettercap-0.7.3-1.rf.src.rpm: V3 DSA signature: NOKEY, key ID 6b8d79e6
   1:ettercap               ########################################### [100%]
warning: user dag does not exist - using root
warning: group dag does not exist - using root
[root@localhost ~]#