diff --git a/bin/rivet-config.in b/bin/rivet-config.in
--- a/bin/rivet-config.in
+++ b/bin/rivet-config.in
@@ -1,113 +1,113 @@
 #! /usr/bin/env bash
 ## -*- sh -*-
 ## @configure_input@
 
 tmp=$(echo $* | egrep -- '--\<help\>|-\<h\>')
 if test $# -eq 0 || test -n "$tmp"; then
     echo "rivet-config: configuration tool for the Rivet generator validation system"
     echo "              http://projects.hepforge.org/rivet/"
     echo
     echo "Usage: $( basename $0 ) [--help|-h] | "
     echo "           [--{prefix,datadir,libdir,includedir}] | "
     echo "           [--{cppflags,ldflags,ldlibs}] | "
     echo "           [--version]"
     echo "Options:"
     echo "  --help | -h   : show this help message"
     echo
     echo "  --prefix      : show the installation prefix (cf. autoconf)"
     echo "  --includedir  : show the path to the directory containing the Rivet headers"
     echo "  --libdir      : show the path to the directory containing the Rivet libraries"
     echo "  --datadir     : show the path to the directory containing Rivet data"
     echo "  --pythonpath  : show the path(s) to the directory containing Rivet's Python package"
     echo
     echo "  --guess-prefix: try to use the runtime prefix, rather than that set at install-time"
     echo
     echo "  --cxx         : returns a compiler string matching that used to build Rivet"
     echo "  --cflags|--cppflags : returns a Rivet '-I' string for insertion into CPPFLAGS"
     echo "  --ldflags     : returns a Rivet '-L' string for insertion into LDFLAGS"
     echo "  --libs        : returns a Rivet '-L/-l' string for insertion into LIBS or LIBADD"
     echo
     echo "  --version     : returns Rivet release version number"
 fi
 
 
 ## These variables need to exist
 ## Note no use of $DESTDIR... we ignore it so that destdir can be used
 ## for temp installs later copied to /
 tmp=$( echo "$*" | egrep -- '--\<guess-prefix\>')
 if [[ -n "$tmp" ]]; then
     bindir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
     prefix=$(dirname $bindir)
     exec_prefix=$prefix
 else
     prefix=@prefix@
     exec_prefix=@exec_prefix@
 fi
 datarootdir=@datarootdir@
 
 
 OUT=""
 
 ## "Atomic" build info, for "roll your own build" obsessives
 tmp=$( echo "$*" | egrep -- '--\<prefix\>')
 test -n "$tmp" && OUT="$OUT @prefix@"
 
 tmp=$( echo "$*" | egrep -- '--\<includedir\>')
 test -n "$tmp" && OUT="$OUT @includedir@"
 
 tmp=$( echo "$*" | egrep -- '--\<libdir\>')
 test -n "$tmp" && OUT="$OUT @libdir@"
 
 tmp=$( echo "$*" | egrep -- '--\<datadir\>')
 test -n "$tmp" && OUT="$OUT @datadir@/@PACKAGE_TARNAME@"
 
 tmp=$( echo "$*" | egrep -- '--\<pythonpath\>')
 test -n "$tmp" && OUT="$OUT @RIVET_PYTHONPATH@"
 
 
 ## "Pre-rolled" build info
 tmp=$( echo "$*" | egrep -- '--\<cxx\>')
 test -n "$tmp" && OUT="$OUT @RIVETCXX@"
 
 tmp=$( echo "$*" | egrep -- '--\<cflags\>|--\<cxxflags\>')
 test -n "$tmp" && OUT="$OUT @RIVETCXXFLAGS@"
 
 tmp=$( echo "$*" | egrep -- '--\<cppflags\>')
 if test -n "$tmp"; then
     irivet="@includedir@"
     test -n "$irivet" && OUT="$OUT -I${irivet}"
     ihepmc="@HEPMCINCPATH@"
     test -n "$ihepmc" && OUT="$OUT -I${ihepmc}"
     iyoda="@YODAINCPATH@"
     test -n "$iyoda" && OUT="$OUT -I${iyoda}"
     ifastjet="@FASTJETINCPATH@"
     test -n "$ifastjet" && OUT="$OUT -I${ifastjet}"
     # igsl="@GSLINCPATH@"
     # test -n "$igsl" && OUT="$OUT -I${igsl}"
     # iboost="@BOOST_CPPFLAGS@"
     # test -n "$iboost" && OUT="$OUT ${iboost}"
 fi
 
 tmp=$( echo "$*" | egrep -- '--\<ldflags\>|--\<libs\>')
 if test -n "$tmp"; then
     lrivet="@libdir@"
     test -n "$lrivet" && OUT="$OUT -L${lrivet}"
     lhepmc="@HEPMCLIBPATH@"
     test -n "$lhepmc" && OUT="$OUT -L${lhepmc}"
     lyoda="@YODALIBPATH@"
     test -n "$lyoda" && OUT="$OUT -L${lyoda}"
     lfastjet="@FASTJETCONFIGLIBADD@"
     test -n "$lfastjet" && OUT="$OUT ${lfastjet}"
-    lgsl="@GSLLIBPATH@"
-    test -n "$lgsl" && OUT="$OUT -L${lgsl}"
+    # lgsl="@GSLLIBPATH@"
+    # test -n "$lgsl" && OUT="$OUT -L${lgsl}"
 fi
 
 tmp=$( echo "$*" | egrep -- '--\<libs\>|--\<ldadd\>')
 test -n "$tmp" && OUT="$OUT -lRivet"
 
 
 ## Version
 tmp=$( echo "$*" | egrep -- '--\<version\>')
 test -n "$tmp" && echo @PACKAGE_VERSION@ && exit 0
 
 echo $OUT