add $nim to path, controlled by define (#96)

src/gear2/bridge.nim

@@ -11,7 +11,7 @@ when defined(nifBench):
 
 import std / [strutils]
 
-import "$nim" / compiler / [
+import compiler / [
   ast, options, pathutils, renderer, lineinfos,
   parser, llstream, idents, msgs]
 

src/gear2/config.nims

@@ -0,0 +1,2 @@
+when not defined(nifCompilerInPath):
+  switch("path", "$nim")

src/gear2/enum2nif.nim

@@ -1,6 +1,6 @@
 # Generated by enumgen.nim. DO NOT EDIT!
 
-import "$nim" / compiler / [ast, options]
+import compiler / [ast, options]
 
 proc toNifTag*(s: TNodeKind): string =
   case s

src/gear2/gear2.nim

@@ -2,7 +2,7 @@ when not defined(nimcore):
   {.error: "nimcore MUST be defined for Nim's core tooling".}
 
 import std / [os, times, parseopt]
-import "$nim" / compiler / [
+import compiler / [
   llstream, ast, options, msgs, condsyms, idents, platform, reorder,
   modules, pipelineutils, pipelines, packages, modulegraphs, lineinfos, pathutils,
   cmdlinehelper, commands, sem, renderer, syntaxes, parser]

src/gear2/generator/enumgen.nim

@@ -1,6 +1,6 @@
 ## Generate effective NIF representation for `Enum`
 
-import "$nim" / compiler / [ast, options]
+import compiler / [ast, options]
 
 import std / [strutils, tables]
 
@@ -216,7 +216,7 @@ proc genFlags[E](f: var File; enumName: string; prefixLen = 2) =
 
 var f = open("src/gear2/enum2nif.nim", fmWrite)
 f.write "# Generated by enumgen.nim. DO NOT EDIT!\n\n"
-f.write "import \"$nim\" / compiler / [ast, options]\n\n"
+f.write "import compiler / [ast, options]\n\n"
 # use the same mapping for TNodeKind and TMagic so that we can detect conflicts!
 var nodeTags = initOrderedTable[string, bool]()
 

src/gear2/modnames.nim

@@ -4,7 +4,7 @@
 # See the file "license.txt", included in this
 # distribution, for details about the copyright.
 
-import "$nim" / compiler / [pathutils]
+import compiler / [pathutils]
 
 # --------------------------------------------------
 # Fast&sufficient string hashing. We use custom code here so that we're independent

src/nifler/bridge.nim

@@ -9,7 +9,7 @@
 when defined(nifBench):
   import std / monotimes
 
-import "$nim" / compiler / [
+import compiler / [
   ast, options, pathutils, renderer, lineinfos,
   parser, llstream, idents, msgs]
 

src/nifler/config.nims

@@ -0,0 +1,2 @@
+when not defined(nifCompilerInPath):
+  switch("path", "$nim")