Merge PR 5, ci: restore aws-lc-rs crypto provider, use cargo-c for librustls install

commit 3280e4f
Author: Daniel McCarney <[email protected]>
Date:   Sat Jan 18 10:37:15 2025 -0500

    ci: restore aws-lc-rs crypto provider in matrix

    This works without issue with the main branch of rustls-ffi.

    For the 0.14.1 release when using the Makefile to install there's an
    upstream issue where the CFLAGS intended for the rustls-ffi
    client/server examples are _also_ used when building librustls and its
    rust dependencies.

    This includes aws-lc-sys, which at the version used by
    librustls/rustls/aws-lc-rs (0.21.1) produces errors under the pedantic
    settings used by rustls-ffi for its examples. The warnings have been
    fixed upstream, but not for the version in use by rustls-ffi 0.14.x.

    To work around this issue we pass CFLAGS="" when running the make
    install for librustls 0.14.1.

commit 681edd0
Author: Daniel McCarney <[email protected]>
Date:   Sat Jan 18 10:18:45 2025 -0500

    ci: install w/ cargo-c instead of cmake

    cmake is only required for the client/server example binaries. For
    mod_tls we only need the librustls bits and can use cargo-c directly.

    cargo-c respects the host OS pattern of putting libs in an
    arch-specific subdir. To make the older 0.14.x Makefile install and the
    cargo-c install equivalent we override this behaviour by setting
    --libdir.

commit 1f7376a
Author: Daniel McCarney <[email protected]>
Date:   Sat Jan 18 10:15:58 2025 -0500

    ci: remove stale comment RE: MSRV/cargo-c

    The workflow is using the latest cargo-c release, not one tailored to
    a Minimum Supported Rust Version (MSRV).

Author: icing

.github/workflows/linux.yml

@@ -52,7 +52,7 @@ jobs:
         crypto:
           - ring
           # aws-lc-sys v0.21.1 is not building due to compiler warnings
-          # - aws-lc-rs
+          - aws-lc-rs
         rustls-version:
           - v0.14.1
           - main
@@ -86,27 +86,27 @@ jobs:
         if: matrix.rustls-version != 'main'
         run: |
           cd $HOME/rustls-ffi
-          make DESTDIR=$HOME/rustls-ffi/build/rust CRYPTO_PROVIDER=${{ matrix.crypto }} install
+          make CFLAGS="" DESTDIR=$HOME/rustls-ffi/build/rust CRYPTO_PROVIDER=${{ matrix.crypto }} install
 
       - name: Install cargo-c
         if: matrix.rustls-version == 'main'
         env:
-          # Version picked for MSRV compat.
           LINK: https://github.com/lu-zero/cargo-c/releases/latest/download/
           CARGO_C_FILE: cargo-c-x86_64-unknown-linux-musl.tar.gz
         run: |
           curl -L $LINK/$CARGO_C_FILE | tar xz -C ~/.cargo/bin
 
-      - name: 'build rustls-ffi (cmake)'
+      - name: 'build rustls-ffi (cargo-c)'
         if: matrix.rustls-version == 'main'
         run: |
           cd $HOME/rustls-ffi
-          cmake \
-            -DCRYPTO_PROVIDER=${{matrix.crypto}} \
-            -DDYN_LINK=on \
-            -DCMAKE_BUILD_TYPE=Release \
-            -S librustls -B build
-          cmake --build build --config "Release"
+          cargo capi install \
+            --libdir lib \
+            --prefix "$HOME/rustls-ffi/build/rust" \
+            --release \
+            --locked \
+            --no-default-features \
+            --features ${{ matrix.crypto }}
 
       - name: 'install test prereqs'
         run: |