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From: eravin@panix.uucp (Ed Ravin)
Newsgroups: comp.unix.aix
Subject: Re: Error compiling GNU grep
Summary: doubly included files cause mysterious xlc messages- film at 11.
Message-ID: <1991May23.192221.1252@panix.uucp>
Date: 23 May 91 19:22:21 GMT
References: <BIS.91May22190433@krokrygg.ifi.uio.no>
Organization: Newsaholics Annonymous
Lines: 58

In article <BIS.91May22190433@krokrygg.ifi.uio.no> bis@ifi.uio.no (Bjorn Ivar Stark) writes:
>I get this error message when I try to compile GNU grep on
>RS/6000 AIX 3.1
>level 3002. Can someone HELP me?
>
>  fosli@asterix /local/lib/gnu/grep-1.5: make all
>   cc -DUSG -O -c dfa.c
>  Processing include file ./dfa.h
>   21   140 | typedef int size_t;
>       ............a......
>  a - 1506-046: (S) Syntax error.
>  File Line Column Message text
>   21   140    1 1506-137: (S) Previous declaration must declare
>at least one 
>  declarator, tag, or the  members of an enumeration.
>  Processing include file ./dfa.h
>   21   190 | #define NULL 0
>      1506-236: (W) Macro name NULL has been redefined.
>  make: 1254-004 The error code from the last command is 1.
>--
>-----------
>Oystein Fosli
>Norsk Hydro a.s           ph.: (472) 739660       
>Postboks 200, VK-A3	  fax: (472) 739991       
>1321 STABEKK	     internet: bis@ifi.uio.no
>Norway

In article <BIS.91May22190433@krokrygg.ifi.uio.no> bis@ifi.uio.no
(Bjorn Ivar Stark) writes:
>I get this error message when I try to compile GNU grep on
>RS/6000 AIX 3.1
>   cc -DUSG -O -c dfa.c
>  Processing include file ./dfa.h
>   21   140 | typedef int size_t;
>       ............a......
>  a - 1506-046: (S) Syntax error.
>  File Line Column Message text
>   21   140    1 1506-137: (S) Previous declaration must declare
>at least one 
>  declarator, tag, or the  members of an enumeration.
>  Processing include file ./dfa.h
>   21   190 | #define NULL 0
>      1506-236: (W) Macro name NULL has been redefined.
>  make: 1254-004 The error code from the last command is 1.

Both "size_t" and "NULL" are defined in system include files somewhere.
I had this when trying to compile some other BSD source.  At least
the message you get for NULL is sensible -- the one for size_t is so
convoluted that you're never really sure what they're talking about.

One solution: grep through /usr/include/*.h to find out which files
define "size_t" and NULL -- then make sure that file gets included in
"dfa.h", and comment out the local definitions in "dfa.h".
-- 
Ed Ravin            | I'm sorry, sir, but POSTAL REGULATIONS don't allow
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