conditionalize macro usage so that it only happens on Fedora 31+ and EPEL-8

R.spec

@@ -3,6 +3,16 @@
 
 %global runjavareconf 1
 
+%if %{?fedora} >= 31
+%global usemacros 1
+%else
+%if 0%{?rhel} && 0%{?rhel} >= 8
+%global usemacros 1
+%else
+%global usemacros 0
+%endif
+%endif
+
 %if 0%{?rhel} && 0%{?rhel} <= 6
 %ifarch ppc64 ppc64le
 %global runjavareconf 0
@@ -120,7 +130,7 @@
 
 Name: R
 Version: 3.6.1
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: A language for data analysis and graphics
 URL: http://www.r-project.org
 Source0: https://cran.r-project.org/src/base/R-3/R-%{version}.tar.gz
@@ -295,6 +305,7 @@ Requires: openblas-Rblas
 Requires: devtoolset-%{dts_version}-toolchain
 %endif
 
+%if %{usemacros}
 # These are the submodules that R-core provides. Sometimes R modules say they
 # depend on one of these submodules rather than just R. These are provided for
 # packager convenience.
@@ -336,6 +347,36 @@ Obsoletes: R-Matrix < 0.999375-7
 %add_submodule tools %{version}
 %add_submodule translations %{version}
 %add_submodule utils %{version}
+%else
+Provides: R-base = %{version}
+Provides: R-boot = 1.3.22
+Provides: R-class = 7.3.15
+Provides: R-cluster = 2.1.0
+Provides: R-codetools = 0.2.16
+Provides: R-datasets = %{version}
+Provides: R-foreign = 0.8.71
+Provides: R-graphics = %{version}
+Provides: R-grDevices = %{version}
+Provides: R-grid = %{version}
+Provides: R-KernSmooth = 2.23.15
+Provides: R-lattice = 0.20.38
+Provides: R-MASS = 7.3.51.4
+Provides: R-Matrix = 1.2.17
+Provides: R-methods = %{version}
+Provides: R-mgcv = 1.8.28
+Provides: R-nlme = 3.1.140
+Provides: R-nnet = 7.3.12
+Provides: R-parallel = %{version}
+Provides: R-rpart = 4.1.15
+Provides: R-spatial = 7.3.11
+Provides: R-splines = %{version}
+Provides: R-stats = %{version}
+Provides: R-stats4 = %{version}
+Provides: R-survival = 2.44.1.1
+Provides: R-tcltk = %{version}
+Provides: R-tools = %{version}
+Provides: R-utils = %{version}
+%endif
 
 %description core
 A language and environment for statistical computing and graphics.
@@ -405,7 +446,9 @@ Install R-core-devel if you are going to develop or compile R packages.
 
 %package devel
 Summary: Full R development environment metapackage
+%if %{usemacros}
 Requires: R-rpm-macros
+%endif
 Requires: R-core-devel = %{version}-%{release}
 %if %{modern}
 Requires: R-java-devel = %{version}-%{release}
@@ -1202,6 +1245,9 @@ R CMD javareconf \
 %{_libdir}/libRmath.a
 
 %changelog
+* Fri Aug 30 2019 Tom Callaway <spot@fedoraproject.org> - 3.6.1-2
+- conditionalize macro usage so that it only happens on Fedora 31+ and EPEL-8
+
 * Fri Aug 16 2019 Tom Callaway <spot@fedoraproject.org> - 3.6.1-1
 - update to 3.6.1