LibreSSL doesn't provide OSSL_PARAM*

Index: util-src/crypto.c
--- util-src/crypto.c.orig
+++ util-src/crypto.c
@@ -27,9 +27,18 @@ typedef unsigned __int32 uint32_t;
 #include <openssl/err.h>
 #include <openssl/evp.h>
 #include <openssl/obj_mac.h>
-#include <openssl/param_build.h>
 #include <openssl/pem.h>
 
+#include <openssl/opensslv.h>
+#if OPENSSL_VERSION_NUMBER >= 0x30000000
+#define HAVE_OSSL_PARAM
+#endif
+
+#ifdef HAVE_OSSL_PARAM
+#include <openssl/param_build.h>
+#endif
+
+
 #if (LUA_VERSION_NUM == 501)
 #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
 #endif
@@ -199,6 +208,7 @@ cleanup:
 }
 
 static int Lpkey_meth_public_raw(lua_State *L) {
+#ifdef HAVE_OSSL_PARAM
 	OSSL_PARAM *params;
 	EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0);
 
@@ -218,6 +228,12 @@ static int Lpkey_meth_public_raw(lua_State *L) {
 	}
 
 	return 1;
+#else
+	EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0);
+	lua_pushnil(L);
+
+	return 1;
+#endif
 }
 
 static int Lpkey_meth_public_pem(lua_State *L) {
@@ -334,6 +350,7 @@ static int Limport_private_pem(lua_State *L) {
 }
 
 static int Limport_public_ec_raw(lua_State *L) {
+#ifdef HAVE_OSSL_PARAM
 	OSSL_PARAM_BLD *param_bld = NULL;
 	OSSL_PARAM *params = NULL;
 	EVP_PKEY_CTX *ctx = NULL;
@@ -367,6 +384,15 @@ err:
 	if (param_bld) OSSL_PARAM_BLD_free(param_bld);
 	lua_pushnil(L);
 	return 1;
+#else
+	size_t pubkey_bytes;
+	const char* pubkey_data = luaL_checklstring(L, 1, &pubkey_bytes);
+	const char* curve = luaL_checkstring(L, 2);
+
+	lua_pushnil(L);
+
+	return 1;
+#endif
 }
 
 static int Limport_public_pem(lua_State *L) {