6 files changed, 16 insertions, 13 deletions
diff --git a/lib/pure/coro.nim b/lib/pure/coro.nim
index 8fa529474..c5724f26f 100644
--- a/lib/pure/coro.nim
+++ b/lib/pure/coro.nim
@@ -119,7 +119,7 @@ proc wait*(c: proc(), interval=0.01) =
   while alive(c):
     suspend interval
 
-when isMainModule:
+when defined(nimCoroutines) and isMainModule:
   var stackCheckValue = 1100220033
   proc c2()
 
diff --git a/lib/pure/coro.nimcfg b/lib/pure/coro.nimcfg
new file mode 100644
index 000000000..b011bc585
--- /dev/null
+++ b/lib/pure/coro.nimcfg
@@ -0,0 +1 @@
+-d:nimCoroutines
diff --git a/lib/pure/math.nim b/lib/pure/math.nim
index 06a018d9f..391a880ae 100644
--- a/lib/pure/math.nim
+++ b/lib/pure/math.nim
@@ -475,7 +475,7 @@ when isMainModule and not defined(JS):
     return sqrt(num)
 
   # check gamma function
-  assert(tgamma(5.0) == 24.0) # 4!
+  assert($tgamma(5.0) == $24.0) # 4!
   assert(lgamma(1.0) == 0.0) # ln(1.0) == 0.0
   assert(erf(6.0) > erf(5.0))
   assert(erfc(6.0) < erfc(5.0))
diff --git a/lib/pure/nativesockets.nim b/lib/pure/nativesockets.nim
index b5661c4d3..c9e067a3e 100644
--- a/lib/pure/nativesockets.nim
+++ b/lib/pure/nativesockets.nim
@@ -349,7 +349,6 @@ proc getAddrString*(sockAddr: ptr SockAddr): string =
   elif sockAddr.sa_family == nativeAfInet6:
     when not useWinVersion:
       # TODO: Windows
-      var v6addr = cast[ptr Sockaddr_in6](sockAddr).sin6_addr
       result = newString(posix.INET6_ADDRSTRLEN)
       let addr6 = addr cast[ptr Sockaddr_in6](sockAddr).sin6_addr
       discard posix.inet_ntop(posix.AF_INET6, addr6, result.cstring,
diff --git a/lib/pure/ospaths.nim b/lib/pure/ospaths.nim
index dcc710193..667ca82d7 100644
--- a/lib/pure/ospaths.nim
+++ b/lib/pure/ospaths.nim
@@ -10,6 +10,10 @@
 # Included by the ``os`` module but a module in its own right for NimScript
 # support.
 
+when isMainModule:
+  {.pragma: rtl.}
+  import strutils
+
 when defined(nimscript) or (defined(nimdoc) and not declared(os)):
   {.pragma: rtl.}
   {.push hint[ConvFromXtoItselfNotNeeded]:off.}
diff --git a/lib/pure/subexes.nim b/lib/pure/subexes.nim
index 2d1adc0eb..5824ace81 100644
--- a/lib/pure/subexes.nim
+++ b/lib/pure/subexes.nim
@@ -351,6 +351,7 @@ proc format*(formatstr: Subex, a: varargs[string, `$`]): string {.noSideEffect,
 {.pop.}
 
 when isMainModule:
+  from strutils import replace
 
   proc `%`(formatstr: string, a: openarray[string]): string =
     result = newStringOfCap(formatstr.len + a.len shl 4)
@@ -382,18 +383,18 @@ when isMainModule:
   doAssert "${$1}" % "1" == "1"
   doAssert "${$$-1} $$1" % "1" == "1 $1"
 
-  doAssert "$#($', '10c'\n    '{#..})" % ["doAssert", "longishA", "longish"] ==
+  doAssert(("$#($', '10c'\n    '{#..})" % ["doAssert", "longishA", "longish"]).replace(" \n", "\n") ==
            """doAssert(
     longishA,
-    longish)"""
+    longish)""")
 
-  assert "type MyEnum* = enum\n  $', '2i'\n  '{..}" % ["fieldA",
-    "fieldB", "FiledClkad", "fieldD", "fieldE", "longishFieldName"] ==
+  doAssert(("type MyEnum* = enum\n  $', '2i'\n  '{..}" % ["fieldA",
+    "fieldB", "FiledClkad", "fieldD", "fieldE", "longishFieldName"]).replace(" \n", "\n") ==
     strutils.unindent """
       type MyEnum* = enum
         fieldA, fieldB,
         FiledClkad, fieldD,
-        fieldE, longishFieldName"""
+        fieldE, longishFieldName""")
 
   doAssert subex"$1($', '{2..})" % ["f", "a", "b", "c"] == "f(a, b, c)"
 
@@ -401,12 +402,10 @@ when isMainModule:
 
   doAssert subex"$['''|'|''''|']']#" % "0" == "'|"
 
-  assert subex("type\n  Enum = enum\n    $', '40c'\n    '{..}") % [
-    "fieldNameA", "fieldNameB", "fieldNameC", "fieldNameD"] ==
+  doAssert((subex("type\n  Enum = enum\n    $', '40c'\n    '{..}") % [
+    "fieldNameA", "fieldNameB", "fieldNameC", "fieldNameD"]).replace(" \n", "\n") ==
     strutils.unindent """
       type
         Enum = enum
           fieldNameA, fieldNameB, fieldNameC,
-          fieldNameD"""
-
-
+          fieldNameD""")