[libint] Unite RHEL specs.

[Susi Lehtola]

commit 26641e5cb802e595badf6f452f50e51be4ac4bdf
Author: Susi Lehtola <jussilehtola at fedoraproject.org>
Date:   Sun Dec 22 18:00:40 2013 +0200

    Unite RHEL specs.

 libint.spec |   19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)
---
diff --git a/libint.spec b/libint.spec
index fc4f048..db5d942 100644
--- a/libint.spec
+++ b/libint.spec
@@ -12,10 +12,26 @@ Patch0:         libint-1.1.5-printf.patch
 Patch1:         libint-1.1.5-maxnode.patch
 
 BuildRoot:      %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
+
+%if 0%{?rhel} == 5
+# g++ crashes on pcc when trying to build in EPEL-5
+ExcludeArch:    ppc
+# Required to build documentation
+BuildRequires:  /usr/bin/bibtex
+BuildRequires:  /usr/bin/pdflatex
+%endif
+
+%if 0%{?rhel} == 6
 # Required to build documentation
+BuildRequires:  /usr/bin/bibtex
+BuildRequires:  /usr/bin/pdflatex
+%endif
+
+%if 0%{?fedora} > 17
+# Required to build documentation
+BuildRequires:  tex-bibtex
 BuildRequires:  tex(appendix.sty)
 BuildRequires:  tex(bbding.sty)
-BuildRequires:  tex-bibtex
 BuildRequires:  tex(braket.sty)
 BuildRequires:  tex(framed.sty)
 BuildRequires:  tex(latex)
@@ -23,6 +39,7 @@ BuildRequires:  tex(mathcomp.sty)
 BuildRequires:  tex(sfmath.sty)
 BuildRequires:  tex(subfigure.sty)
 Buildrequires:  tex(wrapfig.sty)
+%endif
 
 %description
 LIBINT computes the Coulomb and exchange integrals, which in electronic