-d:nocaas mode for easier bootstrapping on exotic OSes (Haiku)

compiler/msgs.nim

@@ -8,7 +8,10 @@
 #
 
 import
-  options, strutils, os, tables, sockets, ropes, platform
+  options, strutils, os, tables, ropes, platform
+
+when useCaas:
+  import sockets
 
 type 
   TMsgKind* = enum 
@@ -529,14 +532,19 @@ var
   gWarnCounter*: int = 0
   gErrorMax*: int = 1         # stop after gErrorMax errors
   gSilence*: int              # == 0 if we produce any output at all 
-  stdoutSocket*: TSocket
 
-proc SuggestWriteln*(s: string) = 
-  if gSilence == 0: 
-    if isNil(stdoutSocket): Writeln(stdout, s)
-    else: 
+when useCaas:
+  var stdoutSocket*: TSocket
+
+proc SuggestWriteln*(s: string) =
+  if gSilence == 0:
+    when useCaas:
+      if isNil(stdoutSocket): Writeln(stdout, s)
+      else:
+        Writeln(stdout, s)
+        stdoutSocket.send(s & "\c\L")
+    else:
       Writeln(stdout, s)
-      stdoutSocket.send(s & "\c\L")
 
 proc SuggestQuit*() =
   if not isServing:

compiler/options.nim

@@ -15,6 +15,7 @@ const
   useEffectSystem* = true
   hasFFI* = defined(useFFI)
   newScopeForIf* = true
+  useCaas* = not defined(noCaas)
 
 type                          # please make sure we have under 32 options
                               # (improves code efficiency a lot!)

compiler/service.nim

@@ -9,11 +9,13 @@
 
 ## Implements the "compiler as a service" feature.
 
-import 
-  sockets,
+import
   times, commands, options, msgs, nimconf,
   extccomp, strutils, os, platform, parseopt
 
+when useCaas:
+  import sockets
+
 # We cache modules and the dependency graph. However, we don't check for
 # file changes but expect the client to tell us about them, otherwise the
 # repeated CRC calculations may turn out to be too slow.
@@ -80,19 +82,22 @@ proc serve*(action: proc (){.nimcall.}) =
       FlushFile(stdout)
 
   of "tcp", "":
-    var server = Socket()
-    let p = getConfigVar("server.port")
-    let port = if p.len > 0: parseInt(p).TPort else: 6000.TPort
-    server.bindAddr(port, getConfigVar("server.address"))
-    var inp = "".TaintedString
-    server.listen()
-    new(stdoutSocket)
-    while true:
-      accept(server, stdoutSocket)
-      stdoutSocket.readLine(inp)
-      execute inp.string
-      stdoutSocket.send("\c\L")
-      stdoutSocket.close()
+    when useCaas:
+      var server = Socket()
+      let p = getConfigVar("server.port")
+      let port = if p.len > 0: parseInt(p).TPort else: 6000.TPort
+      server.bindAddr(port, getConfigVar("server.address"))
+      var inp = "".TaintedString
+      server.listen()
+      new(stdoutSocket)
+      while true:
+        accept(server, stdoutSocket)
+        stdoutSocket.readLine(inp)
+        execute inp.string
+        stdoutSocket.send("\c\L")
+        stdoutSocket.close()
+    else:
+      quit "server.type not supported; compiler built without caas support"
   else:
     echo "Invalid server.type:", typ
     quit 1

koch.nim

@@ -52,6 +52,7 @@ Boot options:
                            (not needed on Windows)
   -d:useFFI                build Nimrod with FFI support at compile time
   -d:nativeStacktrace      use native stack traces (only for Mac OS X or Linux)
+  -d:noCaas                build Nimrod without CAAS support
 """
 
 proc exe(f: string): string = return addFileExt(f, ExeExt)