5 files changed, 37 insertions, 12 deletions
diff --git a/lib/impure/zipfiles.nim b/lib/impure/zipfiles.nim
index 1726449d8..b9f89dda0 100644
--- a/lib/impure/zipfiles.nim
+++ b/lib/impure/zipfiles.nim
@@ -56,6 +56,8 @@ proc addFile*(z: var TZipArchive, dest, src: string) =
   ## Adds the file `src` to the archive `z` with the name `dest`. `dest`
   ## may contain a path that will be created. 
   assert(z.mode != fmRead) 
+  if not fileExists(src):
+    raise newException(EIO, "File '" & src & "' does not exist")
   var zipsrc = zip_source_file(z.w, src, 0, -1)
   if zipsrc == nil:
     #echo("Dest: " & dest)
diff --git a/lib/pure/concurrency/cpuinfo.nim b/lib/pure/concurrency/cpuinfo.nim
index dfa819f64..8d7f28f8e 100644
--- a/lib/pure/concurrency/cpuinfo.nim
+++ b/lib/pure/concurrency/cpuinfo.nim
@@ -18,15 +18,24 @@ when not defined(windows):
 
 when defined(linux):
   import linux
+  
+when defined(freebsd) or defined(macosx):
+  {.emit:"#include <sys/types.h>".}
+
+when defined(openbsd) or defined(netbsd):
+  {.emit:"#include <sys/param.h>".}
 
 when defined(macosx) or defined(bsd):
+  # we HAVE to emit param.h before sysctl.h so we cannot use .header here
+  # either. The amount of archaic bullshit in Poonix based OSes is just insane.
+  {.emit:"#include <sys/sysctl.h>".}
   const
     CTL_HW = 6
     HW_AVAILCPU = 25
     HW_NCPU = 3
   proc sysctl(x: ptr array[0..3, cint], y: cint, z: pointer,
               a: var csize, b: pointer, c: int): cint {.
-             importc: "sysctl", header: "<sys/sysctl.h>".}
+              importc: "sysctl", nodecl.}
 
 proc countProcessors*(): int {.rtl, extern: "ncpi$1".} =
   ## returns the numer of the processors/cores the machine has.
diff --git a/lib/pure/concurrency/threadpool.nim b/lib/pure/concurrency/threadpool.nim
index e0a2ac678..f46822d94 100644
--- a/lib/pure/concurrency/threadpool.nim
+++ b/lib/pure/concurrency/threadpool.nim
@@ -95,7 +95,7 @@ type
 
   FlowVarBase* = ref FlowVarBaseObj ## untyped base class for 'FlowVar[T]'
   FlowVarBaseObj = object of TObject
-    ready, usesCondVar: bool
+    ready, usesCondVar, awaited: bool
     cv: CondVar #\
     # for 'awaitAny' support
     ai: ptr AwaitInfo
@@ -129,8 +129,8 @@ type
 proc await*(fv: FlowVarBase) =
   ## waits until the value for the flowVar arrives. Usually it is not necessary
   ## to call this explicitly.
-  if fv.usesCondVar:
-    fv.usesCondVar = false
+  if fv.usesCondVar and not fv.awaited:
+    fv.awaited = true
     await(fv.cv)
     destroyCondVar(fv.cv)
 
diff --git a/lib/system/ansi_c.nim b/lib/system/ansi_c.nim
index e012697ae..673d55582 100644
--- a/lib/system/ansi_c.nim
+++ b/lib/system/ansi_c.nim
@@ -78,10 +78,23 @@ when defined(macosx):
 else:
   template SIGBUS: expr = SIGSEGV
 
-proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
-  header: "<setjmp.h>", importc: "longjmp".}
-proc c_setjmp(jmpb: C_JmpBuf): cint {.
-  header: "<setjmp.h>", importc: "setjmp".}
+when defined(nimSigSetjmp) and not defined(nimStdSetjmp):
+  proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
+    header: "<setjmp.h>", importc: "siglongjmp".}
+  template c_setjmp(jmpb: C_JmpBuf): cint =
+    proc c_sigsetjmp(jmpb: C_JmpBuf, savemask: cint): cint {.
+      header: "<setjmp.h>", importc: "sigsetjmp".}
+    c_sigsetjmp(jmpb, 0)
+elif defined(nimRawSetjmp) and not defined(nimStdSetjmp):
+  proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
+    header: "<setjmp.h>", importc: "_longjmp".}
+  proc c_setjmp(jmpb: C_JmpBuf): cint {.
+    header: "<setjmp.h>", importc: "_setjmp".}
+else:
+  proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
+    header: "<setjmp.h>", importc: "longjmp".}
+  proc c_setjmp(jmpb: C_JmpBuf): cint {.
+    header: "<setjmp.h>", importc: "setjmp".}
 
 proc c_signal(sig: cint, handler: proc (a: cint) {.noconv.}) {.
   importc: "signal", header: "<signal.h>".}
diff --git a/lib/system/channels.nim b/lib/system/channels.nim
index df46922e4..a5d5c0802 100644
--- a/lib/system/channels.nim
+++ b/lib/system/channels.nim
@@ -226,15 +226,16 @@ proc recv*[TMsg](c: var TChannel[TMsg]): TMsg =
   llRecv(q, addr(result), cast[PNimType](getTypeInfo(result)))
   releaseSys(q.lock)
 
-proc tryRecv*[TMsg](c: var TChannel[TMsg]): tuple[dataAvaliable: bool,
+proc tryRecv*[TMsg](c: var TChannel[TMsg]): tuple[dataAvailable: bool,
                                                   msg: TMsg] =
   ## try to receives a message from the channel `c` if available. Otherwise
   ## it returns ``(false, default(msg))``.
   var q = cast[PRawChannel](addr(c))
-  if q.mask != ChannelDeadMask:
-    lockChannel(q):
+  if q.mask != ChannelDeadMask:
+    if tryAcquireSys(q.lock):
       llRecv(q, addr(result.msg), cast[PNimType](getTypeInfo(result.msg)))
-      result.dataAvaliable = true
+      result.dataAvailable = true
+      releaseSys(q.lock)
 
 proc peek*[TMsg](c: var TChannel[TMsg]): int =
   ## returns the current number of messages in the channel `c`. Returns -1