Message-ID: <CAOTmaJEAFiHR-kWtma9fC8-9xzUJtqbFPrsmPAZ27FutXY+JbA@mail.gmail.com>
Date: 2013-10-01T12:37:14Z
From: Gad Abraham
Subject: [Rcpp-devel] Makevars flags that get evaluated
Hi,
I've started using Rcpp recently and it's great!
Is there a list of which of the Makevars variables are evaluated, i.e.,
ones that I can declare as backticks for conditional results. For example,
I'd like to be able to declare an environment variable during package
installation, e.g.:
USE_OPENCL=yes R CMD INSTALL package
but neither
PKG_CPPFLAGS += `if ! [ -z $(USE_OPENCL) ]; then echo '-DUSE_OPENCL'; fi`
nor
PKG_CXXFLAGS += `if ! [ -z $(USE_OPENCL) ]; then echo '-DUSE_OPENCL'; fi`
seems to work.
Thanks,
Gad
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