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From: gwyn@smoke.brl.mil (Doug Gwyn)
Newsgroups: comp.lang.c
Subject: Re: compiling gcc under Ultrix
Message-ID: <14465@smoke.brl.mil>
Date: 15 Nov 90 18:31:22 GMT
References: <1990Nov14.164414.16983@aplcen.apl.jhu.edu>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
Lines: 12

In article <1990Nov14.164414.16983@aplcen.apl.jhu.edu> kjh@visual1.jhuapl.edu (Kenneth J. Heeres) writes:
>  stddef.h line 12  illegal type combination
>   typedef unsigned long size_t;

size_t must have been previously typedefed.  Since there is no #iftypedef
available, it's hard to avoid such situations.  Usually, ANSI C implementors
associate a reserved preprocessing macro such as __SIZE_T_DEFINED with their
typedef for size_t, so that every header that might have to typedef it can:
	#ifndef __SIZE_T_DEFINED
	#define	__SIZE_T_DEFINED
	typedef unsigned long size_t;
	#endif