So I guess I've been doing paths all wrong... ?

Author: absurdfarce

.github/workflows/test.yml

@@ -23,6 +23,7 @@ jobs:
           echo "KERBEROS_BIN_DIR=${{ env.KERBEROS_ROOT_DIR }}\bin" >> $env:GITHUB_ENV
           echo "OPENSSL_BIN_DIR=${{ env.OPENSSL_ROOT_DIR }}\bin" >> $env:GITHUB_ENV
           echo "OPENSSL_INCLUDE_DIR=${{ env.OPENSSL_ROOT_DIR }}\include" >> $env:GITHUB_ENV
+          echo "OPENSSL_APPLINK_DIR=C:/vcpkg/packages/openssl_x64-windows/include/openssl" >> $env:GITHUB_ENV
       - name: Set PATH to find vcpkg dependencies
         run: |
           echo "PATH=${{ env.PATH }};${{ env.LIBUV_BIN_DIR }};${{ env.KERBEROS_BIN_DIR }};${{ env.OPENSSL_BIN_DIR }}" >> $env:GITHUB_ENV
@@ -32,7 +33,8 @@ jobs:
         run: |
           mkdir build
           cd build
-          cmake -G "NMake Makefiles" -DCASS_BUILD_UNIT_TESTS=On -DCASS_OPENSSL_APPLINK=${{ env.OPENSSL_INCLUDE_DIR }}\openssl\applink.c ..
+          dir ${{ env.OPENSSL_APPLINK_DIR }}
+          cmake -G "NMake Makefiles" -DCASS_BUILD_UNIT_TESTS=On -DCASS_OPENSSL_APPLINK=${{ env.OPENSSL_APPLINK_DIR }}/applink.c ..
           nmake
           ls .
           ldd ./cassandra-unit-tests.exe