Date: Wed, 26 Jun 2002 15:05:58 -0400 From: "Kevin A. Pieckiel" <kpieckiel@pacer.dmz.smartrafficenter.org> To: freebsd-questions@freebsd.org Subject: gcc with -pthread links to libc? Warnings on output... Message-ID: <20020626150558.A36720@pacer.dmz.smartrafficenter.org>
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I'm developing a threaded package using standard pthread symantics.
My gcc compile line includes -pthread to link in libc_r instead of
libc, but I gt these warning messages:
/usr/lib/libc.so.4: WARNING! setkey(3) not present in the system!
/usr/lib/libc.so.4: warning: this program uses gets(), which is unsafe.
/usr/lib/libc.so.4: warning: mktemp() possibly used unsafely; consider usin=
g mkstemp()
/usr/lib/libc.so.4: WARNING! des_setkey(3) not present in the system!
/usr/lib/libc.so.4: WARNING! encrypt(3) not present in the system!
/usr/lib/libc.so.4: warning: tmpnam() possibly used unsafely; consider usin=
g mkstemp()
/usr/lib/libc.so.4: warning: this program uses f_prealloc(), which is not r=
ecommended.
/usr/lib/libc.so.4: WARNING! des_cipher(3) not present in the system!
/usr/lib/libc.so.4: warning: tempnam() possibly used unsafely; consider usi=
ng mkstemp()
First, I thought -pthread links libc_r instead of libc. Why is this
showing up here? Second, my program doesn't even use setkey, gets, mktemp,
des_setkey, encrypt, tmpnam, f_prealloc, des_cipher, nor tempnam. From
where are these references coming?
The funny thing is, I've developed apps before that use pthreads, and
I didn't get these warnings. I don't know what is different. They
were much smaller projects, and I no longer have the source code to
reference.
How do I fix these warnings?
I'm running FBSD 4.5-Stable (cvs'd sources mid Februrary). Gcc version
is 2.95.3. Language is C. Don't know what other info would be of use,
but will be glad to answer questions.
Thanks,
Kevin
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