https://github.com/openbsd/ports/blob/4015c1b7d9ac2701a8cc648392d433636bffa16f/security/qca-qt6/patches/patch-plugins_qca-ossl_qca-ossl_cpp

Fix compilation with LibreSSL

https://invent.kde.org/libraries/qca/-/merge_requests/133
https://invent.kde.org/libraries/qca/-/merge_requests/134

Index: plugins/qca-ossl/qca-ossl.cpp
--- a/plugins/qca-ossl/qca-ossl.cpp.orig
+++ b/plugins/qca-ossl/qca-ossl.cpp
@@ -47,6 +47,11 @@
 
 #include <openssl/kdf.h>
 
+#ifndef RSA_F_RSA_OSSL_PRIVATE_DECRYPT
+#define RSA_F_RSA_OSSL_PRIVATE_DECRYPT RSA_F_RSA_EAY_PRIVATE_DECRYPT
+#define SSL_CIPHER_standard_name SSL_CIPHER_get_name
+#endif
+
 using namespace QCA;
 
 namespace {
@@ -3753,7 +3758,7 @@ class MyCertContext : public CertContext (public)
             const int byte_len = ASN1_STRING_length((const ASN1_STRING *)signature);
             p.sig              = QByteArray(byte_len, 0);
             for (int i = 0; i < byte_len; i++)
-                p.sig[i] = ASN1_BIT_STRING_get_bit(signature, i);
+                p.sig[i] = ASN1_STRING_get0_data(signature)[i];
         }
 
         switch (X509_get_signature_nid(x)) {
@@ -6502,7 +6507,7 @@ static QStringList all_hash_types()
         list += QStringLiteral("md2");
 #endif
         list += QStringLiteral("md4");
-#ifdef OBJ_whirlpool
+#ifndef OPENSSL_NO_WHIRLPOOL
         list += QStringLiteral("whirlpool");
 #endif
     }
@@ -6968,7 +6973,7 @@ class opensslProvider : public Provider (public)
 #endif
             else if (type == QLatin1String("md4"))
                 return new opensslHashContext(EVP_md4(), this, type);
-#ifdef OBJ_whirlpool
+#ifndef OPENSSL_NO_WHIRLPOOL
             else if (type == QLatin1String("whirlpool"))
                 return new opensslHashContext(EVP_whirlpool(), this, type);
 #endif