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Date:      Fri, 15 May 1998 11:14:14 +0300
From:      Ruslan Ermilov <ru@ucb.crimea.ua>
To:        hackers@FreeBSD.ORG
Subject:   Problems installing things using /usr/share/mk/*
Message-ID:  <19980515111414.A12691@ucb.crimea.ua>

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Hi!

While recently ``making the world my own'' I noticed the strange thing.

One day (see below) I ran ``make buildworld''.
Next morning I've ran ``make installworld''.

Then, after succussful upgrade, I tried:

# cd /usr/src/bin/cat && make -n all
cc -O    -static -o cat cat.o  

Why the make wants to build the ``cat'' again, I thought?

Here's what were digged:

1. The ${PROG} target depends on ${DESTDIR}/usr/lib/libc.a
   (line 64 of /usr/share/mk/bsd.prog.mk, RELENG_2_2)
   In this particular case, the ``cat'' binary depends on /usr/lib/libc.a.

2. /usr/lib/libc.a is older than the /usr/obj/usr/src/bin/cat/cat.

-r--r--r--  1 bin   bin  539170 May 12 11:33 /usr/lib/libc.a
-rw-r--r--  1 root  bin  539170 May 10 19:52 /usr/obj/usr/src/lib/libc/libc.a
-rwxr-xr-x  1 root  bin   63788 May 10 20:31 /usr/obj/usr/src/bin/cat/cat

Note, that original libc.a in /usr/obj was built earlier that the ``cat''.

That's why the make wants to build the ``cat'' binary again.

The reason why /usr/lib/libc.a gets older than the libc.a in /usr/obj
is in the way the libs are installed.

They are installed with ``install -c'' command.

How about to install binaries using ``install -p'' instead of
``install -c''. This will preserve the original modification times
of the files being installed and will no confuse the make.

There are many ways to implement this.

The one I thought of was to define and use something like ``PRESERVE=-p''
in bsd.*.mk. I tried it (modifying /usr/share/mk/*) and was success.

Anyone wants to comment?

Regards,
-- 
Ruslan Ermilov          System Administrator
ru@ucb.crimea.ua        United Commercial Bank
+380-652-247647         Simferopol, Crimea
2426679                 ICQ Network, UIN

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