From owner-freebsd-current  Thu Oct 31 23:23:12 2002
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From: Daniel Flickinger <attila@hun.org>
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To: FreeBSD-CURRENT <current@freebsd.org>
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Subject: another include failure to find in buildworld
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    from cvsup *default date=2002.11.01.06.00.00:

	rm -rf /usr/obj/usr
	make -j 4 -k -s buildworld ...

    crashed in libc. v1.19 is in /usr/include; v1.20 is in
    the /usr/obj/ tree where it should be read by infinity.c

/usr/src/lib/libc/i386/gen/infinity.c:11: storage size of `__infinity' isn't known
*** Error code 1

<  * $FreeBSD: src/lib/msun/src/math.h,v 1.19 2002/10/23 17:35:11 markm Exp $
---
>  * $FreeBSD: src/lib/msun/src/math.h,v 1.20 2002/10/31 23:05:20 archie Exp $
23,24c23,27
< extern char __infinity[];
< #define HUGE_VAL      (*(double *) __infinity)
---
> extern const union __infinity_un {
>       unsigned char   __uc[8];
>       double          __ud;
> } __infinity;
> #define HUGE_VAL      (__infinity.__ud)

    This is another instance where the build is not reading
    from the /usr/obj tree, reading from /usr/include first.

    a 'make buildincludes installincludes' cures the problem

    This is no problem in the development track; costs me a
    few minutes to update /usr/include and 34 minutes on the
    machine to do a new buildworld. I just deleted the 'make
    installincludes' step from my build scripts --maybe I
    should restore it?

    However, is it not the intent not to require an
    installincludes prior to buildworld?

    ... too much insider knowledge and nothing documented
    other than read the makefiles?


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