grybkine: cmt/requirements: Fix setting TeX-related paths (Rivet-02-01-02-02)

External/Rivet/cmt/requirements

+package Rivet
+
+author Andy Buckley <andy.buckley@cern.ch>
+author James Monk <jmonk@hep.ucl.ac.uk>
+
+use AtlasPolicy AtlasPolicy-*
+use LCG_Configuration
+use AtlasExternalArea          AtlasExternalArea-*     External
+use AtlasHepMC                 AtlasHepMC-*            External
+use AtlasGSL                   AtlasGSL-*              External
+use YODA                       YODA-*                  External
+
+## Uncomment line below to test with Rivet installation in /afs/.cern.ch
+#macro LCG_ROOT "/afs/.cern.ch/sw/lcg"
+macro LCG_external "$(LCG_ROOT)/external"
+
+macro Rivet_home "$(LCG_external)/MCGenerators_lcgcmt$(LCG_config_version)/rivet"
+macro Rivet_version "2.1.2"
+macro Rivet_native_version "$(Rivet_version)_lcgcmt$(LCG_config_version)"
+macro Rivet_dir "$(Rivet_home)/$(Rivet_version)/$(LCG_ext_system)"
+macro Rivet_lib "$(Rivet_dir)/lib"
+macro Rivet_share "$(Rivet_dir)/share"
+macro Rivet_bin "$(Rivet_dir)/bin"
+macro Rivet_python "$(Rivet_dir)/lib/python${Python_version}/site-packages"
+macro Rivet_texmf "$(Rivet_dir)/share/Rivet/texmf
+
+macro Rivet_linkopts "-L$(Rivet_lib) -lRivet"
+
+macro Rivet_export_paths "$(Rivet_dir)"
+macro Rivet_follow_symlinks "y"
+
+## Install libraries
+apply_pattern declare_installed_libraries dir="$(Rivet_lib)"
+
+## Install headers
+#include_path none
+include_path $(Rivet_dir)/include
+include_dirs $(Rivet_dir)/include
+
+## Install scripts
+apply_pattern declare_scripts files=" -s=$(Rivet_bin) *"
+path_prepend PATH "$(Rivet_bin)"
+
+## Install Python modules
+apply_pattern generic_declare_for_link kind=python_modules \
+  files='-s=$(Rivet_python) * *.py *.so' prefix="$(CMTCONFIG)/lib/python$(Python_version)" name=rivet_pymodules
+path_prepend PYTHONPATH "$(Rivet_python)"
+
+## Set TeX environment for Rivet plotting
+path_prepend TEXMFHOME "$(Rivet_texmf)"
+path_prepend TEXMFCNF "$(Rivet_texmf)/cnf"
+path_prepend TEXINPUTS "$(Rivet_texmf)/tex"
+path_prepend LATEXINPUTS "$(Rivet_texmf)/tex"