[CI] Refactor pacxx-build jobs

Addresses: #32

.gitlab-ci.yml

@@ -145,11 +145,8 @@ samples-source:
 #  PACXX Build: build pacxx using the base image
 #
 
-pacxx-build-native:
+.pacxx-build:
   stage: pacxx-build
-  image: $REGISTRY/$CI_PROJECT_PATH:base-native.$PIPELINE_TAG
-  dependencies:
-  - pacxx-source
   tags:
   - hpc2seci
   variables:
@@ -171,31 +168,13 @@ pacxx-build-native:
     - opt/pacxx/
     expire_in: 1 week
 
+pacxx-build-native:
+  extends: .pacxx-build
+  image: $REGISTRY/$CI_PROJECT_PATH:base-native.$PIPELINE_TAG
+
 pacxx-build-cuda:
-  stage: pacxx-build
+  extends: .pacxx-build
   image: $REGISTRY/$CI_PROJECT_PATH:base-cuda.$PIPELINE_TAG
-  dependencies:
-  - pacxx-source
-  tags:
-  - hpc2seci
-  variables:
-    GIT_STRATEGY: none
-  script:
-  - *ccache
-  - cat llvm/repoversions
-  - mkdir build
-  - cd build
-  - cmake ../llvm -DBUILD_SHARED_LIBS=ON -DLLVM_ENABLE_RTTI=ON -DLLVM_ENABLE_CXX1Y=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS_RELEASE="-O3" -DCMAKE_INSTALL_PREFIX=/opt/pacxx
-  - make -j$(nproc)
-  - cd ..
-  - make DESTDIR=$(pwd) -C build -j$(nproc) install
-  - cp llvm/repoversions opt/pacxx/
-  after_script:
-  - *ccache
-  artifacts:
-    paths:
-    - opt/pacxx/
-    expire_in: 1 week
 
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