error: conflicting types for Win32 API

BlitzMax Forums/Brucey's Modules/error: conflicting types for Win32 API

BlitzSupport

(Posted 2016) [#1]

Hi all,

I'm trying to build an old program that uses a Win32 API call, GetSystemTimes. It used to build in non-NG BlitzMax, but for some reason that's not working with bah.serial (missing libsetupapi), so I'm trying in NG, but run into this:

Building untitled1
[ 99%] Processing:untitled1.bmx
[ 99%] Compiling:untitled1.bmx.console.release.win32.x86.c
In file included from I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/tmp/.bmx/untitled1.bmx.console.release.win32.x86.c:1:0:
I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/tmp/.bmx/untitled1.bmx.console.release.win32.x86.h:40:25: error: conflicting types for 'GetSystemTimes'
 extern BBINT __stdcall  GetSystemTimes(BBBYTE* bbt_lpIdleTime,BBBYTE* bbt_lpKernelTime,BBBYTE* bbt_lpUserTime);
                         ^
In file included from I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/MinGW32/x86_64-w64-mingw32/include/windows.h:70:0,
                 from I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/mod/brl.mod/blitz.mod/blitz_thread.h:7,
                 from I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/mod/brl.mod/blitz.mod/blitz.h:28,
                 from I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/mod/brl.mod/blitz.mod/.bmx/blitz.bmx.release.win32.x86.h:4,
                 from I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/tmp/.bmx/untitled1.bmx.console.release.win32.x86.h:4,
                 from I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/tmp/.bmx/untitled1.bmx.console.release.win32.x86.c:1:
I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/MinGW32/x86_64-w64-mingw32/include/winbase.h:1329:18: note: previous declaration of 'GetSystemTimes' was here
   WINBOOL WINAPI GetSystemTimes (LPFILETIME lpIdleTime, LPFILETIME lpKernelTime, LPFILETIME lpUserTime);
                  ^
Build Error: failed to compile I:/SpiderOak/DevTools/Blitz/BlitzMaxNG_077/tmp/.bmx/untitled1.bmx.console.release.win32.x86.c
Process complete

This is the simple stripped-down code that produces the above:

SuperStrict

Extern "win32"
	Function GetSystemTimes:Int (lpIdleTime:Byte Ptr, lpKernelTime:Byte Ptr, lpUserTime:Byte Ptr)
End Extern

Is it a bug, or should I be changing my code here somehow?

Henri

(Posted 2016) [#2]

Hi,

'GetSystemTimes' is already defined in windows.h imported somewhere along the chain, so one solution would be to create a file named <your_app>.x (or whichever file contains your extern-statement) with conflicting type defined like "WINBOOL GetSystemTimes(LPFILETIME, LPFILETIME, LPFILETIME)!" . Explanation for x.file format see this thread.

-Henri

BlitzSupport

(Posted 2016) [#3]

Thanks, Henri, will look into that.

RustyKristi

(Posted 2016) [#4]

Hey BlitzSupport. If you read my recent threads, this is exactly one of my issues being reported with NG.

Another option is you just remove your externs and add Import Pub.Win32. That should do it.