Fix build on legacy openssl 1.0.2

Fixes #133

Author: jeroen

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: openssl
 Type: Package
 Title: Toolkit for Encryption, Signatures and Certificates Based on OpenSSL
-Version: 2.3.3
+Version: 2.3.4
 Authors@R: c(person("Jeroen", "Ooms", role = c("aut", "cre"), email = "[email protected]",
     comment = c(ORCID = "0000-0002-4035-0289")),
     person("Oliver", "Keyes", role = "ctb"))

NEWS

@@ -1,3 +1,6 @@
+2.3.4
+ - Fix build on legacy openssl 1.0.2
+
 2.3.3
  - Fix a unit test for CRAN Fedora builds
 

src/info.c

@@ -1,6 +1,7 @@
 #include <Rinternals.h>
 #include <openssl/opensslconf.h>
 #include <openssl/opensslv.h>
+#include "compatibility.h"
 
 #include <openssl/evp.h>
 #ifdef EVP_PKEY_ED25519
@@ -25,7 +26,11 @@ SEXP R_openssl_config(void) {
   has_fips = 1;
   #endif
   SEXP res = PROTECT(Rf_allocVector(VECSXP, 4));
+#ifdef HAS_OPENSSL11_API
   SET_VECTOR_ELT(res, 0, Rf_mkString(OpenSSL_version(OPENSSL_VERSION)));
+#else
+  SET_VECTOR_ELT(res, 0, Rf_mkString(OPENSSL_VERSION_TEXT));
+#endif
   SET_VECTOR_ELT(res, 1, Rf_ScalarLogical(has_ec));
   SET_VECTOR_ELT(res, 2, Rf_ScalarLogical(has_x25519));
   SET_VECTOR_ELT(res, 3, Rf_ScalarLogical(has_fips));