professorohki@epoch:~/Desktop$ sudo apt-get install libgtk2.0-dev
...
The following packages have unmet dependencies:
  libgtk2.0-dev: Depends: libpango1.0-dev (>= 1.12) but it is not going to be installed
                 Depends: libcairo2-dev (>= 1.2.0) but it is not going to be installed

professorohki@epoch:~/Desktop$ sudo apt-get install libcairo2-dev
...
The following packages have unmet dependencies:
  libcairo2-dev: Depends: libfontconfig1-dev but it is not going to be installed

professorohki@epoch:~/Desktop$ sudo apt-get install libfontconfig1-dev
...
The following packages have unmet dependencies:
  libfontconfig1-dev: Depends: libfontconfig1 (= 2.3.2-7ubuntu2) but 2.4.1-2 is to be installed

professorohki@epoch:~/Desktop$ sudo apt-get install libfontconfig1=2.3.2-7ubuntu2
...
The following packages have unmet dependencies:
  libfontconfig1: Depends: fontconfig-config (= 2.3.2-7ubuntu2) but 2.4.1-2 is to be installed

professorohki@epoch:~/Desktop$ sudo apt-get install fontconfig-config=2.3.2-7ubuntu2
...
The following packages have unmet dependencies:
  openoffice.org-l10n-en-gb: Depends: openoffice.org-common (>= 2.0.4~rc3) but it is not going to be installed or
                                      language-support-en but it is not going to be installed
                             Depends: openoffice.org-common (< 2.0.5) but it is not going to be installed or
                                      language-support-en but it is not going to be installed
  openoffice.org-l10n-en-za: Depends: openoffice.org-common (>= 2.0.4~rc3) but it is not going to be installed or
                                      language-support-en but it is not going to be installed
                             Depends: openoffice.org-common (< 2.0.5) but it is not going to be installed or
                                      language-support-en but it is not going to be installed