disable ppc64le and s390x python builds

compiling aws-ls-sys on these targets are way too flaky, even for me.

Author: 2bndy5

.github/workflows/python-packaging.yml

@@ -65,6 +65,7 @@ jobs:
     needs: [seed-build-script]
     runs-on: ${{ matrix.platform.runner }}
     strategy:
+      fail-fast: false
       matrix:
         platform:
           - runner: ubuntu-latest
@@ -75,10 +76,13 @@ jobs:
             target: aarch64
           - runner: ubuntu-latest
             target: armv7
-          - runner: ubuntu-latest
-            target: s390x
-          - runner: ubuntu-latest
-            target: ppc64le
+          # These targets currently fail because the docker containers used for building manylinux wheels
+          # use a known-bad C compiler version; aws-lc-sys refuses to build with the bad compiler:
+          # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189
+          # - runner: ubuntu-latest
+          #   target: s390x
+          # - runner: ubuntu-latest
+          #   target: ppc64le
     steps:
       - uses: actions/checkout@v6
         with:
@@ -98,28 +102,22 @@ jobs:
           # Use the zig toolchain for all targets except ppc64le.
           # Note, this is meant to avoid build errors in aws-lc-sys crate, which compiles C code.
           args: >-
-            --release --out dist --find-interpreter
-            ${{ matrix.platform.target != 'ppc64le' && '--zig' || ''}}
+            --release --out dist --find-interpreter --zig
           # avoid cache-poisoning potential for actually distributed builds
           sccache: ${{ startsWith(github.ref, 'refs/tags') && 'false' || 'true' }}
-          manylinux: auto
-          # here we either install the ppc64le compiler/toolchain or install zig on all others
-          before-script-linux: |
-            case "${{ matrix.platform.target }}" in
-              ppc64le)
-                apt-get update
-                apt-get install -y \
-                  pkg-config \
-                  gcc-powerpc64le-linux-gnu \
-                  g++-powerpc64le-linux-gnu \
-                  binutils-powerpc64le-linux-gnu \
-                  libc6-dev-ppc64el-cross
-                ;;
-              *)
-                # spell-checker: disable-next-line
-                pip install ziglang
-                ;;
-            esac
+          manylinux: 'auto'
+          # before-script-linux: |
+          #   case "${{ matrix.platform.target }}" in
+          #     ppc64le)
+          #       apt-get update
+          #       apt-get install -y \
+          #         pkg-config \
+          #         gcc-powerpc64le-linux-gnu \
+          #         g++-powerpc64le-linux-gnu \
+          #         binutils-powerpc64le-linux-gnu \
+          #         libc6-dev-ppc64el-cross
+          #        ;;
+          #   esac
       - name: Upload wheels
         uses: actions/upload-artifact@v7
         with:

.github/workflows/run-dev-tests.yml

@@ -48,6 +48,7 @@ jobs:
           if-no-files-found: error
 
   test:
+    needs: [seed-build-script]
     strategy:
       fail-fast: false
       matrix:
@@ -167,3 +168,4 @@ jobs:
           token: ${{secrets.CODECOV_TOKEN}}
           files: lcov.info
           fail_ci_if_error: true # optional (default = false)
+          use_pypi: true # workaround unexpected GPG key changes (temporarily)