configure: disable engines if OPENSSL_NO_ENGINE is defined

Starting with LibreSSL 3.8.1 the engines have been removed which causes the OpenVPN build to fail. This can be solved during configure by checking if OPENSSL_NO_ENGINE is defined in opensslconf.h. Signed-off-by: orbea <[email protected]> Acked-by: Gert Doering <[email protected]> Message-Id: <[email protected]> URL: https://www.mail-archive.com/[email protected]/msg26994.html Signed-off-by: Gert Doering <[email protected]>
OpenVPN · Sep 10, 2023 · 34bf473 · 34bf473
1 parent 5f910a4
commit 34bf473
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -927,11 +927,17 @@ if test "${with_crypto_library}" = "openssl"; then
 				    [AC_LANG_PROGRAM(
 					    [[
 	    #include <openssl/opensslv.h>
+	    #include <openssl/opensslconf.h>
 					    ]],
 					    [[
 	    /*	     Version encoding: MNNFFPPS - see opensslv.h for details */
 	    #if OPENSSL_VERSION_NUMBER >= 0x30000000L
-	    #error Engine supported disabled by default in OpenSSL 3.0+
+	    #error Engine support disabled by default in OpenSSL 3.0+
+	    #endif
+
+	    /*	     BoringSSL and LibreSSL >= 3.8.1 removed engine support */
+	    #ifdef OPENSSL_NO_ENGINE
+	    #error Engine support disabled in openssl/opensslconf.h
 	    #endif
 					    ]]
 				    )],