1 files changed, 12 insertions, 6 deletions
diff --git a/lib/system/ansi_c.nim b/lib/system/ansi_c.nim
index 702559034..1bbd89fe7 100644
--- a/lib/system/ansi_c.nim
+++ b/lib/system/ansi_c.nim
@@ -23,14 +23,20 @@ proc c_strlen(a: cstring): int {.header: "<string.h>",
 proc c_memset(p: pointer, value: cint, size: int) {.
   header: "<string.h>", importc: "memset".}
 
-type
-  C_TextFile {.importc: "FILE", header: "<stdio.h>",
-               final, incompleteStruct.} = object
-  C_BinaryFile {.importc: "FILE", header: "<stdio.h>",
+when not declared(File):
+  type
+    C_TextFile {.importc: "FILE", header: "<stdio.h>",
                  final, incompleteStruct.} = object
-  C_TextFileStar = ptr C_TextFile
-  C_BinaryFileStar = ptr C_BinaryFile
+    C_BinaryFile {.importc: "FILE", header: "<stdio.h>",
+                   final, incompleteStruct.} = object
+    C_TextFileStar = ptr C_TextFile
+    C_BinaryFileStar = ptr C_BinaryFile
+else:
+  type
+    C_TextFileStar = File
+    C_BinaryFileStar = File
 
+type
   C_JmpBuf {.importc: "jmp_buf", header: "<setjmp.h>".} = object
 
 when not defined(vm):