docs: Fix building docs package on CentOS 7.3
Now that the necessary BRs are in EPEL the docs package can also be
built.
@@ -35,6 +35,16 @@ BuildRequires: texlive-tcolorbox
BuildRequires: texlive-environ
BuildRequires: texlive-trimspaces
BuildRequires: texlive-amsmath
+%if 0%{?rhel}
+BuildRequires: texlive-texconfig
+BuildRequires: texlive-metafont
+BuildRequires: texlive-cm
+BuildRequires: texlive-pdftex-def
+BuildRequires: texlive-helvetic
+BuildRequires: texlive-ec
+BuildRequires: texlive-cm-super
+BuildRequires: texlive-dvips
+%endif
BuildRequires: latexmk
BuildRequires: git
