+#
+# runhaskell and hsc2hs are special, in that other compilers besides
+# GHC might provide them. Systems with a package manager often come
+# with tools to manage this kind of clash, e.g. RPM's
+# update-alternatives. When building a distribution for such a system,
+# we recommend setting both of the following to 'YES'.
+#
+# NO_INSTALL_RUNHASKELL = YES
+# NO_INSTALL_HSC2HS = YES
+#
+# NB. we use negative tests here because for binary-distributions we cannot
+# test build-time variables at install-time, so they must default to on.
+