| Message ID | 1472530253-94132-2-git-send-email-arei.gonglei@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 08/29/2016 11:10 PM, Gonglei wrote: > gnutls commit 846753877d renamed LIBGNUTLS_VERSION_NUMBER to GNUTLS_VERSION_NUMBER. > If using gnutls before that verion, we'll get the below warning: s/verion/version/ > crypto/tlscredsx509.c:618:5: warning: "GNUTLS_VERSION_NUMBER" is not defined > The C preprocessor is well-defined to treat an unknown macro name as 0. Which compiler are you using that complains? Is this something that we consistently work around, or is it better to figure out how to fix your compiler to quit complaining? > Signed-off-by: Gonglei <arei.gonglei@huawei.com> > --- > crypto/tlscredsx509.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c > index 520d34d..f2fd80f 100644 > --- a/crypto/tlscredsx509.c > +++ b/crypto/tlscredsx509.c > @@ -615,7 +615,7 @@ qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds, > } > > if (cert != NULL && key != NULL) { > -#if GNUTLS_VERSION_NUMBER >= 0x030111 > +#if defined(GNUTLS_VERSION_NUMBER) && GNUTLS_VERSION_NUMBER >= 0x030111 At any rate, this is the correct way to silence the warning (even if verbose), if we do want it, so: Reviewed-by: Eric Blake <eblake@redhat.com>
On 30 August 2016 at 15:14, Eric Blake <eblake@redhat.com> wrote: > On 08/29/2016 11:10 PM, Gonglei wrote: >> gnutls commit 846753877d renamed LIBGNUTLS_VERSION_NUMBER to GNUTLS_VERSION_NUMBER. >> If using gnutls before that verion, we'll get the below warning: > > s/verion/version/ > >> crypto/tlscredsx509.c:618:5: warning: "GNUTLS_VERSION_NUMBER" is not defined >> > > The C preprocessor is well-defined to treat an unknown macro name as 0. > Which compiler are you using that complains? Is this something that we > consistently work around, or is it better to figure out how to fix your > compiler to quit complaining? This is gcc's -Wundef, which we explicitly enable in configure. (The rationale is the usual one, ie that almost all the time this happens it's by accident and so it's worth putting in the extra effort to avoid the odd case where you were doing it deliberately.) thanks -- PMM
On Tue, Aug 30, 2016 at 12:10:52PM +0800, Gonglei wrote: > gnutls commit 846753877d renamed LIBGNUTLS_VERSION_NUMBER to GNUTLS_VERSION_NUMBER. > If using gnutls before that verion, we'll get the below warning: > crypto/tlscredsx509.c:618:5: warning: "GNUTLS_VERSION_NUMBER" is not defined > > Signed-off-by: Gonglei <arei.gonglei@huawei.com> > --- > crypto/tlscredsx509.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c > index 520d34d..f2fd80f 100644 > --- a/crypto/tlscredsx509.c > +++ b/crypto/tlscredsx509.c > @@ -615,7 +615,7 @@ qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds, > } > > if (cert != NULL && key != NULL) { > -#if GNUTLS_VERSION_NUMBER >= 0x030111 > +#if defined(GNUTLS_VERSION_NUMBER) && GNUTLS_VERSION_NUMBER >= 0x030111 > char *password = NULL; > if (creds->passwordid) { > password = qcrypto_secret_lookup_as_utf8(creds->passwordid, Other places in this file still use LIBGNUTLS_VERSION_NUMBER, which is good, because gnutls 3.x still defines LIBGNUTLS_VERSION_NUMBER for back compat. The tests/test-crypto-tlscredsx509.c file also needs a similar fix. Regards, Daniel
> -----Original Message----- > From: Daniel P. Berrange [mailto:berrange@redhat.com] > Sent: Monday, September 05, 2016 6:15 PM > To: Gonglei (Arei) > Cc: qemu-devel@nongnu.org; dmitry@daynix.com > Subject: Re: [PATCH v2 1/2] crypto: fix building complaint > > On Tue, Aug 30, 2016 at 12:10:52PM +0800, Gonglei wrote: > > gnutls commit 846753877d renamed LIBGNUTLS_VERSION_NUMBER to > GNUTLS_VERSION_NUMBER. > > If using gnutls before that verion, we'll get the below warning: > > crypto/tlscredsx509.c:618:5: warning: "GNUTLS_VERSION_NUMBER" is not > defined > > > > Signed-off-by: Gonglei <arei.gonglei@huawei.com> > > --- > > crypto/tlscredsx509.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c > > index 520d34d..f2fd80f 100644 > > --- a/crypto/tlscredsx509.c > > +++ b/crypto/tlscredsx509.c > > @@ -615,7 +615,7 @@ qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 > *creds, > > } > > > > if (cert != NULL && key != NULL) { > > -#if GNUTLS_VERSION_NUMBER >= 0x030111 > > +#if defined(GNUTLS_VERSION_NUMBER) && > GNUTLS_VERSION_NUMBER >= 0x030111 > > char *password = NULL; > > if (creds->passwordid) { > > password = > qcrypto_secret_lookup_as_utf8(creds->passwordid, > > Other places in this file still use LIBGNUTLS_VERSION_NUMBER, which is > good, because gnutls 3.x still defines LIBGNUTLS_VERSION_NUMBER for > back compat. > You mean using LIBGNUTLS_VERSION_NUMBER directly here? That's ok. > The tests/test-crypto-tlscredsx509.c file also needs a similar fix. > Sorry? Regards, -Gonglei > Regards, > Daniel > -- > |: http://berrange.com -o- > http://www.flickr.com/photos/dberrange/ :| > |: http://libvirt.org -o- > http://virt-manager.org :| > |: http://autobuild.org -o- > http://search.cpan.org/~danberr/ :| > |: http://entangle-photo.org -o- > http://live.gnome.org/gtk-vnc :|
On Mon, Sep 05, 2016 at 10:50:54AM +0000, Gonglei (Arei) wrote: > > > > -----Original Message----- > > From: Daniel P. Berrange [mailto:berrange@redhat.com] > > Sent: Monday, September 05, 2016 6:15 PM > > To: Gonglei (Arei) > > Cc: qemu-devel@nongnu.org; dmitry@daynix.com > > Subject: Re: [PATCH v2 1/2] crypto: fix building complaint > > > > On Tue, Aug 30, 2016 at 12:10:52PM +0800, Gonglei wrote: > > > gnutls commit 846753877d renamed LIBGNUTLS_VERSION_NUMBER to > > GNUTLS_VERSION_NUMBER. > > > If using gnutls before that verion, we'll get the below warning: > > > crypto/tlscredsx509.c:618:5: warning: "GNUTLS_VERSION_NUMBER" is not > > defined > > > > > > Signed-off-by: Gonglei <arei.gonglei@huawei.com> > > > --- > > > crypto/tlscredsx509.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c > > > index 520d34d..f2fd80f 100644 > > > --- a/crypto/tlscredsx509.c > > > +++ b/crypto/tlscredsx509.c > > > @@ -615,7 +615,7 @@ qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 > > *creds, > > > } > > > > > > if (cert != NULL && key != NULL) { > > > -#if GNUTLS_VERSION_NUMBER >= 0x030111 > > > +#if defined(GNUTLS_VERSION_NUMBER) && > > GNUTLS_VERSION_NUMBER >= 0x030111 > > > char *password = NULL; > > > if (creds->passwordid) { > > > password = > > qcrypto_secret_lookup_as_utf8(creds->passwordid, > > > > Other places in this file still use LIBGNUTLS_VERSION_NUMBER, which is > > good, because gnutls 3.x still defines LIBGNUTLS_VERSION_NUMBER for > > back compat. > > > You mean using LIBGNUTLS_VERSION_NUMBER directly here? That's ok. Yes, > > The tests/test-crypto-tlscredsx509.c file also needs a similar fix. > > > Sorry? It also uses the GNUTLS_VERSION_NUMBER constant instead of LIBGNUTLS_VERSION_NUMBER Regards, Daniel
diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c index 520d34d..f2fd80f 100644 --- a/crypto/tlscredsx509.c +++ b/crypto/tlscredsx509.c @@ -615,7 +615,7 @@ qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds, } if (cert != NULL && key != NULL) { -#if GNUTLS_VERSION_NUMBER >= 0x030111 +#if defined(GNUTLS_VERSION_NUMBER) && GNUTLS_VERSION_NUMBER >= 0x030111 char *password = NULL; if (creds->passwordid) { password = qcrypto_secret_lookup_as_utf8(creds->passwordid,
gnutls commit 846753877d renamed LIBGNUTLS_VERSION_NUMBER to GNUTLS_VERSION_NUMBER. If using gnutls before that verion, we'll get the below warning: crypto/tlscredsx509.c:618:5: warning: "GNUTLS_VERSION_NUMBER" is not defined Signed-off-by: Gonglei <arei.gonglei@huawei.com> --- crypto/tlscredsx509.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)