In case of synliboverride we support only openssl 1.0.*

compiler/commands.nim

@@ -226,6 +226,8 @@ proc testCompileOptionArg*(switch, arg: string, info: TLineInfo): bool =
     of "staticlib": result = contains(gGlobalOptions, optGenStaticLib) and
                       not contains(gGlobalOptions, optGenGuiApp)
     else: localError(info, errGuiConsoleOrLibExpectedButXFound, arg)
+  of "dynliboverride":
+    result = isDynlibOverride(arg)
   else: invalidCmdLineOption(passCmd1, switch, info)
 
 proc testCompileOption*(switch: string, info: TLineInfo): bool =

lib/wrappers/openssl.nim

@@ -187,58 +187,73 @@ const
   BIO_C_DO_STATE_MACHINE = 101
   BIO_C_GET_SSL = 110
 
-# Here we're trying to stay compatible with openssl 1.0.* and 1.1.*. Some
-# symbols are loaded dynamically and we don't use them if not found.
-proc thisModule(): LibHandle {.inline.} =
-  var thisMod {.global.}: LibHandle
-  if thisMod.isNil: thisMod = loadLib()
-  result = thisMod
-
-proc sslModule(): LibHandle {.inline.} =
-  var sslMod {.global.}: LibHandle
-  if sslMod.isNil: sslMod = loadLibPattern(DLLSSLName)
-  result = sslMod
-
-proc sslSym(name: string): pointer =
-  var dl = thisModule()
-  if not dl.isNil:
-    result = symAddr(dl, name)
-  if result.isNil:
-    dl = sslModule()
-    if not dl.isNil:
-      result = symAddr(dl, name)
-
-proc SSL_library_init*(): cint {.discardable.} =
-  let theProc = cast[proc(): cint {.cdecl.}](sslSym("SSL_library_init"))
-  if not theProc.isNil: result = theProc()
-
-proc SSL_load_error_strings*() =
-  let theProc = cast[proc() {.cdecl.}](sslSym("SSL_load_error_strings"))
-  if not theProc.isNil: theProc()
-
-proc ERR_load_BIO_strings*(){.cdecl, dynlib: DLLUtilName, importc.}
-
 proc TLSv1_method*(): PSSL_METHOD{.cdecl, dynlib: DLLSSLName, importc.}
 
-proc SSLv23_client_method*(): PSSL_METHOD {.deprecated.} =
-  let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv23_client_method"))
-  if not theProc.isNil: result = theProc()
-  else: result = TLSv1_method()
+when compileOption("dynlibOverride", "ssl"):
+  proc SSL_library_init*(): cint {.cdecl, dynlib: DLLSSLName, importc, discardable.}
+  proc SSL_load_error_strings*() {.cdecl, dynlib: DLLSSLName, importc.}
+  proc SSLv23_client_method*(): PSSL_METHOD {.cdecl, dynlib: DLLSSLName, importc.}
 
-proc SSLv23_method*(): PSSL_METHOD {.deprecated.} =
-  let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv23_method"))
-  if not theProc.isNil: result = theProc()
-  else: result = TLSv1_method()
+  proc SSLv23_method*(): PSSL_METHOD {.cdecl, dynlib: DLLSSLName, importc.}
+  proc SSLv2_method*(): PSSL_METHOD {.cdecl, dynlib: DLLSSLName, importc.}
+  proc SSLv3_method*(): PSSL_METHOD {.cdecl, dynlib: DLLSSLName, importc.}
 
-proc SSLv2_method*(): PSSL_METHOD {.deprecated.} =
-  let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv2_method"))
-  if not theProc.isNil: result = theProc()
-  else: result = TLSv1_method()
+  template OpenSSL_add_all_algorithms*() = discard
+else:
+  # Here we're trying to stay compatible with openssl 1.0.* and 1.1.*. Some
+  # symbols are loaded dynamically and we don't use them if not found.
+  proc thisModule(): LibHandle {.inline.} =
+    var thisMod {.global.}: LibHandle
+    if thisMod.isNil: thisMod = loadLib()
+    result = thisMod
 
-proc SSLv3_method*(): PSSL_METHOD {.deprecated.} =
-  let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv3_method"))
-  if not theProc.isNil: result = theProc()
-  else: result = TLSv1_method()
+  proc sslModule(): LibHandle {.inline.} =
+    var sslMod {.global.}: LibHandle
+    if sslMod.isNil: sslMod = loadLibPattern(DLLSSLName)
+    result = sslMod
+
+  proc sslSym(name: string): pointer =
+    var dl = thisModule()
+    if not dl.isNil:
+      result = symAddr(dl, name)
+    if result.isNil:
+      dl = sslModule()
+      if not dl.isNil:
+        result = symAddr(dl, name)
+
+  proc SSL_library_init*(): cint {.discardable.} =
+    let theProc = cast[proc(): cint {.cdecl.}](sslSym("SSL_library_init"))
+    if not theProc.isNil: result = theProc()
+
+  proc SSL_load_error_strings*() =
+    let theProc = cast[proc() {.cdecl.}](sslSym("SSL_load_error_strings"))
+    if not theProc.isNil: theProc()
+
+  proc SSLv23_client_method*(): PSSL_METHOD =
+    let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv23_client_method"))
+    if not theProc.isNil: result = theProc()
+    else: result = TLSv1_method()
+
+  proc SSLv23_method*(): PSSL_METHOD =
+    let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv23_method"))
+    if not theProc.isNil: result = theProc()
+    else: result = TLSv1_method()
+
+  proc SSLv2_method*(): PSSL_METHOD =
+    let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv2_method"))
+    if not theProc.isNil: result = theProc()
+    else: result = TLSv1_method()
+
+  proc SSLv3_method*(): PSSL_METHOD =
+    let theProc = cast[proc(): PSSL_METHOD {.cdecl, gcsafe.}](sslSym("SSLv3_method"))
+    if not theProc.isNil: result = theProc()
+    else: result = TLSv1_method()
+
+  proc OpenSSL_add_all_algorithms*() =
+    let theProc = cast[proc() {.cdecl.}](sslSym("OPENSSL_add_all_algorithms_conf"))
+    if not theProc.isNil: theProc()
+
+proc ERR_load_BIO_strings*(){.cdecl, dynlib: DLLUtilName, importc.}
 
 proc SSL_new*(context: SslCtx): SslPtr{.cdecl, dynlib: DLLSSLName, importc.}
 proc SSL_free*(ssl: SslPtr){.cdecl, dynlib: DLLSSLName, importc.}
@@ -306,10 +321,6 @@ proc ERR_error_string*(e: cInt, buf: cstring): cstring{.cdecl,
 proc ERR_get_error*(): cInt{.cdecl, dynlib: DLLUtilName, importc.}
 proc ERR_peek_last_error*(): cInt{.cdecl, dynlib: DLLUtilName, importc.}
 
-proc OpenSSL_add_all_algorithms*() =
-  let theProc = cast[proc() {.cdecl.}](sslSym("OPENSSL_add_all_algorithms_conf"))
-  if not theProc.isNil: theProc()
-
 proc OPENSSL_config*(configName: cstring){.cdecl, dynlib: DLLSSLName, importc.}
 
 when not useWinVersion and not defined(macosx) and not defined(android):