[Bugfix:Autograding] Fix gcc/g++ symlinks (#63)

Co-authored-by: Barb Cutler <Barb Cutler>

Author: bmcutler

dockerfiles/gcc/11/Dockerfile

@@ -5,6 +5,10 @@ RUN apt-get update
 RUN apt-get install -y gcc-11 g++-11
 RUN rm -rf /var/lib/apt/lists/*
 
-# symlinks
-RUN ln -s /usr/bin/aarch64-linux-gnu-gcc-11 /usr/bin/gcc
-RUN ln -s /usr/bin/aarch64-linux-gnu-g++-11 /usr/bin/g++
+# symlinks - x86
+RUN if test -e /usr/bin/x86_64-linux-gnu-gcc-11; then ln -s /usr/bin/x86_64-linux-gnu-gcc-11 /usr/bin/gcc; fi
+RUN if test -e /usr/bin/x86_64-linux-gnu-g++-11; then ln -s /usr/bin/x86_64-linux-gnu-g++-11 /usr/bin/g++; fi
+
+# symlinks - ARM
+RUN if test -e /usr/bin/aarch64-linux-gnu-gcc-11; then ln -s /usr/bin/aarch64-linux-gnu-gcc-11 /usr/bin/gcc; fi
+RUN if test -e /usr/bin/aarch64-linux-gnu-g++-11; then ln -s /usr/bin/aarch64-linux-gnu-g++-11 /usr/bin/g++; fi