Merge pull request #156 from gaborcsardi/fix/r-devel-compilers

builder/Dockerfile.ubuntu-1804

@@ -7,7 +7,8 @@ RUN set -x \
   && export DEBIAN_FRONTEND=noninteractive \
   && apt-get update \
   && apt-get install -y curl libcurl4-openssl-dev libicu-dev libopenblas-base libpcre2-dev wget python-pip \
-  && apt-get build-dep -y r-base
+  && apt-get build-dep -y r-base \
+  && apt-get install -y gcc-8 g++-8 gfortran-8
 
 RUN pip install awscli
 

builder/build.sh

@@ -120,6 +120,16 @@ compile_r() {
     --with-blas \
     --with-lapack"
 
+  if _version_is_greater_than ${R_VERSION} 4.2.10; then
+      if [[ "${OS_IDENTIFIER}" = "ubuntu-1804" ]]; then
+          default_configure_options="$default_configure_options \
+            CC=gcc-8 CXX=g++-8 FC=gfortran-8"
+          gcc_package=gcc-8
+          gxx_package=g++-8
+          gfortran_package=gfortran-8
+      fi
+  fi
+
   CONFIGURE_OPTIONS=${CONFIGURE_OPTIONS:-$default_configure_options}
 
   # set some common environment variables for the configure step
@@ -165,6 +175,7 @@ EOF
 package_r() {
   if [[ -f /package.sh ]]; then
     export R_VERSION=${1}
+    export gcc_package gxx_package gfortran_package
     source /package.sh
   fi
 }

builder/package.ubuntu-1804

@@ -27,9 +27,9 @@ deb:
   fields:
     Bugs: https://github.com/rstudio/r-builds/issues
 depends:
-- g++
+- ${gxx_package-g++}
-- gcc
+- ${gcc_package-gcc}
-- gfortran
+- ${gfortran_package-gfortran}
 - libbz2-dev
 - libc6
 - libcairo2

test/test-r.sh

@@ -8,9 +8,9 @@ R_HOME=/opt/R/${R_VERSION}/lib/R
 "${R_HOME}/bin/Rscript" -e 'sessionInfo()'
 
 # List R devel dependencies
-gcc --version
+$("${R_HOME}/bin/R" CMD config CC)  --version
-g++ --version
+$("${R_HOME}/bin/R" CMD config CXX) --version
-gfortran --version
+$("${R_HOME}/bin/R" CMD config FC)  --version
 
 # List shared library dependencies (e.g. BLAS/LAPACK)
 LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${R_HOME}/lib ldd "${R_HOME}/lib/libR.so"