#6 --with-libares but "async dns: no"

[Bjoern]

Using this command to configure libares.

./configure --prefix=/usr --host=i686-pc-linux-gnu --
mandir=/usr/share/man --infodir=/usr/share/info --
datadir=/usr/share --sysconfdir=/etc --localstatedir=/
var/lib --with-libares --with-libxml2 --enable-nls --
enable-metalink --with-gnutls --without-openssl --
build=i686-pc-linux-gnu

gives the following when running "aria2 -v"

Configuration
http: yes
https: yes
ftp: yes
bittorrent: yes
metalink: yes
message digest: yes
async dns: no

Any ideas?

Regards
Bjoern

[Bjoern]

[tujikawa]

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Check your system to make sure ares library is installed.
It is usually located at /usr/lib/libares.so.

In Debian system, ares library is packaged as libares0.

[Bjoern]

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Okay, I use gentoo and there is an wbuild called c-ares
(http://daniel.haxx.se/projects/c-ares/)

I thougth this would do the trick, but the libs are called

/usr/lib/libcares.so
/usr/lib/libcares.so.0.0.0
/usr/lib/libcares.so.0
/usr/lib/libcares.la
/usr/lib/libcares.a

Linking /usr/lib/libcares.so.0.0.0 to /usr/lib/libares.so
does the trick. So now the big question.
Whom to asign a but, you, for not searching for
libcares.so.0 ;-) or the c-ares maintainers...

Any ideas, what should be the default?

Best regards, and many thanks
Bjoern

[Bjoern]

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sry, for the double post.

Linking works for the configuration, but fails while
compiling.

Could you provid a link to the sources of ares which work?
Thanks

NameResolver.cc: In function void callback(void*, int, hostent*)': /usr/include/ares.h:174: error: too many arguments to functionconst char* ares_strerror(int)'
NameResolver.cc:27: error: at this point in file
distcc[22355] ERROR: compile NameResolver.cc on 10.0.123.1
failed
make[2]: *** [NameResolver.o] Fehler 1
make[2]: *** Warte auf noch nicht beendete Prozesse...
make[2]: Leaving directory /var/tmp/portage/aria2-0.7.1/ work/aria2-0.7.1/src' make[1]: *** [all-recursive] Fehler 1 make[1]: Leaving directory/var/tmp/portage/aria2-0.7.1/
work/aria2-0.7.1'
make: *** [all] Fehler 2

!!! ERROR: net-misc/aria2-0.7.1 failed.
Call stack:
ebuild.sh, line 1543: Called dyn_compile
ebuild.sh, line 938: Called src_compile
aria2-0.7.1.ebuild, line 40: Called die

[Tiziano Müller]

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We don't have the ares library in Gentoo (probably because
it's unmaintained, last version dates from 2001), only the
newer c-ares lib which is a fork of ares.

[Ant Bryan]

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Fedora also has c-ares
(http://daniel.haxx.se/projects/c-ares/) rpms in Extras
(for those of us who like avoiding compiling stuff if possible).

From looking at the filesizes, ares is 64k while c-ares is
311k. c-ares is still being maintained tho.

' Some noticable changes from ares include:

* IPv6 support
* Many bug fixes
* Extended portability (Mac OS X, RISC OS, Windows, DOS

and more)
* 64bit cleaned sources
* New functions (ares_cancel(), ares_expand_string(),
ares_version() and more) '

[tujikawa]

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I chose ares over c-ares because c-ares is not packaged in
debian.

So far, according to the posts and the patch by
tizianomueller, the differences between c-ares and ares are
library name and the number of args of ares_strerror.
I'll add auto detection mechanism for c-ares and ares. It is
just a few lines of coding in configure script and #ifdef stuff.

thanks.

[tujikawa]

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Close this issue since it was solved in 0.7.2 release.