fix #11854 (#11857)

lib/system/threadlocalstorage.nim

@@ -144,12 +144,12 @@ else:
       tv_sec: Time
       tv_nsec: clong
 
-  proc pthread_attr_init(a1: var PthreadAttr) {.
+  proc pthread_attr_init(a1: var Pthread_attr) {.
     importc, header: pthreadh.}
-  proc pthread_attr_setstacksize(a1: var PthreadAttr, a2: int) {.
+  proc pthread_attr_setstacksize(a1: var Pthread_attr, a2: int) {.
     importc, header: pthreadh.}
 
-  proc pthread_create(a1: var SysThread, a2: var PthreadAttr,
+  proc pthread_create(a1: var SysThread, a2: var Pthread_attr,
             a3: proc (x: pointer): pointer {.noconv.},
             a4: pointer): cint {.importc: "pthread_create",
             header: pthreadh.}

lib/system/threads.nim

@@ -309,7 +309,7 @@ else:
     when TArg isnot void: t.data = param
     t.dataFn = tp
     when hasSharedHeap: t.core.stackSize = ThreadStackSize
-    var a {.noinit.}: PthreadAttr
+    var a {.noinit.}: Pthread_attr
     pthread_attr_init(a)
     pthread_attr_setstacksize(a, ThreadStackSize)
     if pthread_create(t.sys, a, threadProcWrapper[TArg], addr(t)) != 0:

tests/concepts/texplain.nim

@@ -1,7 +1,6 @@
 discard """
   cmd: "nim c --verbosity:0 --colors:off $file"
   nimout: '''
-Hint: texplain [Processing]
 texplain.nim(158, 10) Hint: Non-matching candidates for e(y)
 proc e(i: int): int
   first type mismatch at position: 1
@@ -117,6 +116,7 @@ expression: f(y)'''
 
 
 
+
 # line 120 HERE
 
 type