Bug 1103

Summary:	AIX compiler error in render extension (redefined macro)
Product:	xorg	Reporter:	Dan McNichol <mcnichol>
Component:	Server/General	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED FIXED	QA Contact:
Severity:	blocker
Priority:	high	CC:	kem
Version:	git
Hardware:	Other
OS:	AIX
Whiteboard:
i915 platform:		i915 features:
Bug Depends on:
Bug Blocks:	351

Description Dan McNichol 2004-08-16 14:43:16 UTC

Here is the compile error I am hitting:

        rm -f renderedge.o
        xlc -c -O -D__STR31__ -DNDEBUG    -I. -I../include -I../mi -
I../../../include/fonts  -I../fb -I../hw/kdrive -I../../../include/extensions -
I../../../exports/include/X11  -I../../../include/fonts -I../Xext  -I../../.. -
I../../../exports/include   -DSYSV -DAIXV3 -DAIXV4 -DAIXV5 -D_ALL_SOURCE -
DSHAPE   -DXKB -DLBX -DXAPPGROUP -DXCSECURITY -DTOGCUP      -DDPMSExtension   -
DPIXPRIV      -DRENDER -DRANDR -DXFIXES -DDAMAGE -DCOMPOSITE -DXEVIE -
D_IBM_LFT -DNDEBUG    -DFUNCPROTO=15      renderedge.c
"renderedge.c", line 47.9: 1506-213 (S) Macro name div cannot be redefined.
"renderedge.c", line 47.9: 1506-358 (I) "div" is defined on line 634 
of /usr/include/stdlib.h.
"renderedge.c", line 59.51: 1506-068 (S) Operation between types "struct 
div_t" and "long" is not allowed.
make: The error code from the last command is 1.


Stop.







And here is a simple patch to fix the problem:

*** xc/programs/Xserver/render/renderedge.c.orig        Fri Aug  6 18:42:10 
2004
--- xc/programs/Xserver/render/renderedge.c     Mon Aug 16 10:42:56 2004
***************
*** 44,49 ****
--- 44,52 ----
      return (i | f);
  }
  
+ #ifdef div
+ #undef div
+ #endif
  #define div(a,b)    ((a) >= 0 ? (a) / (b) : -((-(a) + (b) - 1) / (b)))
  
  /*

Comment 1 Kevin E. Martin 2004-08-18 11:43:27 UTC

Redefining to _div to avoid conflict with stdlib.h on AIX.
Patch checked in.
Closing.

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