icc: Propagate gcc as is required to build

bsc/intel-compiler/default.nix

@@ -20,6 +20,9 @@ in wrapCCWith rec {
     echo "-L${gcc.cc}/lib/gcc/${targetConfig}/${gcc.version}" >> $out/nix-support/cc-ldflags
     echo "-L${gcc.cc.lib}/lib" >> $out/nix-support/cc-ldflags
 
+    cat "${icc-unwrapped}/nix-support/propagated-build-inputs" >> \
+      $out/nix-support/propagated-build-inputs
+
     echo "export INTEL_LICENSE_FILE=${intel-license}" \
       >> $out/nix-support/setup-hook
 

bsc/intel-compiler/icc2020.nix

@@ -28,9 +28,13 @@ stdenv.mkDerivation rec {
     rpmextract
     autoPatchelfHook
     gcc.cc.lib
+    gcc
     intel-mpi
   ];
 
+  # The gcc package is required for building other programs
+  propagatedBuildInputs = [ gcc ];
+
   installPhase = ''
     rpmextract rpm/intel-icc-*.rpm
     rpmextract rpm/intel-comp-*.rpm