Enable docs in check.

R-withr.spec

@@ -4,9 +4,6 @@
 %global packver  2.3.0
 %global rlibdir  %{_datadir}/R/library
 
-# rmarkdown is not yet available.
-%global with_doc 0
-
 Name:             R-%{packname}
 Version:          2.3.0
 Release:          1%{?dist}
@@ -31,14 +28,12 @@ BuildRequires:    R-grDevices
 BuildRequires:    R-stats
 %if %{without bootstrap}
 BuildRequires:    R-DBI
+BuildRequires:    R-knitr
 BuildRequires:    R-lattice
 BuildRequires:    R-methods
+BuildRequires:    R-rmarkdown
 BuildRequires:    R-RSQLite
 BuildRequires:    R-testthat >= 2.1.0
-%if %{with_doc}
-BuildRequires:    R-knitr
-BuildRequires:    R-rmarkdown
-%endif
 %endif
 
 %description