CI: include lib64 in LD_LIBRARY_PATH so Linux finds the local libcrypto

Author: aidangarske

.github/workflows/wolfssl-versions-pqc.yml

@@ -123,25 +123,14 @@ jobs:
       # Only runs on PQC-enabled rows; OpenSSL 3.5+ has native ML-KEM/ML-DSA
       # in the default provider, so this proves wolfProvider's bytes are
       # FIPS 203/204 standards-compliant against two reference implementations.
-      - name: Diagnose OpenSSL default provider PQC support
-        if: matrix.pqc == true
-        run: |
-          export LD_LIBRARY_PATH="$(pwd)/openssl-install/lib"
-          echo "--- OpenSSL version ---"
-          ./openssl-install/bin/openssl version -a
-          echo "--- libraries linked into pqc_interop.test ---"
-          ldd ./test/pqc_interop.test | grep -E "libcrypto|libssl" || true
-          echo "--- default provider KEM algorithms ---"
-          ./openssl-install/bin/openssl list -kem-algorithms -provider default \
-            | grep -i ml-kem || echo "NO ML-KEM in default provider"
-          echo "--- default provider signature algorithms ---"
-          ./openssl-install/bin/openssl list -signature-algorithms -provider default \
-            | grep -i ml-dsa || echo "NO ML-DSA in default provider"
-
+      # Linux x86_64 OpenSSL installs to lib64 by default; LD_LIBRARY_PATH
+      # must include both lib and lib64 or the dynamic linker falls through
+      # to the system libcrypto/libssl (Ubuntu 22.04 ships 3.0.2, which has
+      # no ML-KEM/ML-DSA in the default provider).
       - name: Three-way PQC interop validation
         if: matrix.pqc == true
         run: |
-          LD_LIBRARY_PATH="$(pwd)/wolfssl-install/lib:$(pwd)/openssl-install/lib" \
+          LD_LIBRARY_PATH="$(pwd)/wolfssl-install/lib:$(pwd)/openssl-install/lib:$(pwd)/openssl-install/lib64" \
             ./test/pqc_interop.test
 
       - name: Print errors on failure