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Fix undefined reference with MinGw (#7175)

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* fix undefined reference with mingw
* use fseek, ftell for x86 and _fseeki64, _ftelli64 for amd64
This commit is contained in:
Volodymyr Melnychuk 2018-02-09 10:34:26 +02:00 • committed by Andreas Rumpf
commit 40e3b5798a
1 changed files with 10 additions and 4 deletions
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14
lib/system/sysio.nim
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@ -48,10 +48,16 @@ when not declared(c_fwrite):
proc c_fread(buf: pointer, size, n: csize, f: File): csize {.
importc: "fread", header: "<stdio.h>", tags: [ReadIOEffect].}
when defined(windows):
proc c_fseek(f: File, offset: int64, whence: cint): cint {.
importc: "_fseeki64", header: "<stdio.h>", tags: [].}
proc c_ftell(f: File): int64 {.
importc: "_ftelli64", header: "<stdio.h>", tags: [].}
when not defined(amd64):
proc c_fseek(f: File, offset: int64, whence: cint): cint {.
importc: "fseek", header: "<stdio.h>", tags: [].}
proc c_ftell(f: File): int64 {.
importc: "ftell", header: "<stdio.h>", tags: [].}
else:
proc c_fseek(f: File, offset: int64, whence: cint): cint {.
importc: "_fseeki64", header: "<stdio.h>", tags: [].}
proc c_ftell(f: File): int64 {.
importc: "_ftelli64", header: "<stdio.h>", tags: [].}
else:
proc c_fseek(f: File, offset: int64, whence: cint): cint {.
importc: "fseeko", header: "<stdio.h>", tags: [].}