Date: Thu, 22 Aug 2002 14:19:54 -0400 (EDT) From: Chaskiel Grundman <cg2v@andrew.cmu.edu> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/41908: make: $? not always set Message-ID: <200208221819.g7MIJsxH021252@yeltsin.andrew.cmu.edu>
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>Number: 41908
>Category: bin
>Synopsis: make: $? not always set
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Aug 22 11:30:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Chaskiel Grundman
>Release: FreeBSD 4.6-STABLE i386
>Organization:
>Environment:
System: FreeBSD yeltsin.andrew.cmu.edu 4.6-STABLE FreeBSD 4.6-STABLE #0: Tue Aug 20 09:48:10 EDT 2002 cg2v@yeltsin.andrew.cmu.edu:/usr/obj/usr/src/sys/MODERN2940 i386
>Description:
if an archive's internal timestamp and file modtime are different
make considers targets dependent on the archive to be out of date,
but does not put the archive in $?
>How-To-Repeat:
with this makefile in an empty directory:
all: test2.a
test2.a: test.a
install -c $? $@
test.a: t1.o
ar crv $@ t1.o
ranlib $@
t1.c: Makefile
touch t1.c
breakit:
touch test.a
run the following sequence:
make; make breakit; make; make
The last command (and any successive make invocations) will fail, and make -dm
produces output like the following:
Examining Makefile...modified 13:58:35 Aug 22, 2002...up-to-date.
Examining t1.c...modified 13:58:37 Aug 22, 2002...up-to-date.
Examining t1.o...modified 13:58:37 Aug 22, 2002...up-to-date.
Examining test.a...modified 13:58:41 Aug 22, 2002...library.../ modified 13:58:37 Aug 22, 2002...up-to-date.
Examining test2.a...modified 13:58:43 Aug 22, 2002...library.../ modified 13:58:37 Aug 22, 2002...out-of-date.
install -c test2.a
usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 file2
install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 ... fileN directory
install -d [-v] [-g group] [-m mode] [-o owner] directory ...
In the peice of software I actually encountered this in, there is no "touch"
involved, but somehow the 2 timestamps are a second apart.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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