Fixes #3871

compiler/commands.nim

@@ -327,7 +327,7 @@ proc processSwitch(switch, arg: string, pass: TCmdLinePass, info: TLineInfo) =
       lists.excludePath(options.lazyPaths, strippedPath)
   of "nimcache":
     expectArg(switch, arg, pass, info)
-    options.nimcacheDir = processPath(arg)
+    options.nimcacheDir = processPath(arg, true)
   of "out", "o":
     expectArg(switch, arg, pass, info)
     options.outFile = arg

compiler/extccomp.nim

@@ -731,6 +731,8 @@ proc callCCompiler*(projectfile: string) =
         builddll = ""
       if options.outFile.len > 0:
         exefile = options.outFile.expandTilde
+        if not exefile.isAbsolute():
+          exefile = getCurrentDir() / exefile
       if not noAbsolutePaths():
         if not exefile.isAbsolute():
           exefile = joinPath(splitFile(projectfile).dir, exefile)

web/news.txt

@@ -2,6 +2,16 @@
 News
 ====
 
+2016-XX-XX Version 0.13.1 released
+==================================
+
+Changes affecting backwards compatibility
+-----------------------------------------
+
+- ``--out`` and ``--nimcache`` command line arguments are now relative to
+  current directory. Previously they were relative to project directory.
+
+
 2016-01-27 Nim in Action is now available!
 ==========================================