[avahi] Problems compiling avahi for Android NDK project

[Ruoruo Zhang(Lily)]

You need still need the patch for other reasons, like the one you hit in
avahi-core. Apply the patch, but make sure you remove the patch for
socket.c. I am quite sure it works for avahi.0.6.31.

Lily Zhang


On Sat, Oct 20, 2012 at 3:43 PM, Chris Perry <slushduck at hotmail.com> wrote:

> Thanks Lilly, I did see your stackoverflow post (referenced below) which
> prompted us to update to android-ndk-r8b.
> *I'm actually curious as to how you made all those Android.mk files -like
> I mentioned below, I couldn't figure out Androgenizer.*
>
> Anyway, the error you posted was:
>
> error: redefinition of 'struct in6_pktinfo'
> When we try to make avahi from command line we get
>
> socket.c:609: error: 'IPV6_PKTINFO' undeclared
>
>
> When we try to build avahi from Android.mk we get:
>
> /avahi-0.6.31/avahi-core/iface-linux.h:27:8: Redefinition of 'struct
> AvahiInterfaceMonitorOSDep'
>
>
> Is that related to the patch as well?
>
> I don't think we have the patch for socket.c but would like to confirm
> that somehow.
> -I've searched socket.c for #ifdef __BIONIC__ and it is not there, so I
> assumed that our copy of avahi-0.6.31 is un-patched.
> -Is that a correct assumption?
>
> Not sure of the policies with this mailing list, I could attach socket.c
> if that would help someone confirm it is not patched.
>
> Thanks again,
> Chris
>
>
> On Oct 20, 2012, at 1:38 PM, Ruoruo Zhang wrote:
>
> You need to remove the patch for socket.c. New ndk has ipv6 support
> already.
>
> I had a stackoverflow question posted and answered regarding his issue.
>
> From Ruoruo (Lily) Zhang
>
> On Oct 20, 2012, at 1:34 PM, Chris Perry <slushduck at hotmail.com> wrote:
>
>  Hi there,
>
> Over the last few days I've been having a difficult time trying to build
> avahi into a static or shared library for use with an existing Android NDK
> project.
>
> We have a few games in the App and Play stores and my task is to get
> multiplayer working in the Android versions.
> Specifically the task involves replacing the Bonjour component so that
> these games can connect to each other via zeroconf.
>
> I'm hoping that someone here can help me get avahi compiling.
>
> Project uses android-ndk-r8b and is being built on OSX 10.7.4 using
> command line (not eclipse)
>
> Got the latest Avahi source from here:
> http://www.linuxfromscratch.org/blfs/view/svn/basicnet/avahi.html
>
> homebrewed all the necessary libs to get ./configure to run without errors.
> ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
> --disable-static --disable-mono --disable-monodoc  --disable-gdbm
> --disable-libdaemon --disable-nls --disable-gtk --disable-gtk3
> --disable-python --disable-qt3 --disable-qt4 --enable-core-docs
> --with-distro=none
>
> ./configure runs with no apparent red flags.
>
> make results in this compile error
> socket.c: In function 'ipv6_pktinfo':
> socket.c:271: warning: unused variable 'yes' [-Wunused-variable]
> socket.c:270: warning: unused parameter 'fd' [-Wunused-parameter]
> socket.c: In function 'avahi_send_dns_packet_ipv6':
> socket.c:609: error: 'IPV6_PKTINFO' undeclared (first use in this function)
> socket.c:609: error: (Each undeclared identifier is reported only once
> socket.c:609: error: for each function it appears in.)
> socket.c: In function 'avahi_recv_dns_packet_ipv6':
> socket.c:869: error: 'IPV6_HOPLIMIT' undeclared (first use in this
> function)
> socket.c:878: error: 'IPV6_PKTINFO' undeclared (first use in this function)
> make[2]: *** [libavahi_core_la-socket.lo] Error 1
> make[1]: *** [all-recursive] Error 1
> make: *** [all] Error 2
>
> Figured that it's not building against the android-ndk-r8b libs or finding
> ipv6.h or something.
> Checked my .bash_profile.sh file:
> export
> PATH=/Users/Muy01/Projects/Development/Android/android-sdks/tools/:$PATH
> export
> PATH=/Users/Muy01/Projects/Development/Android/android-sdks/platform-tools/:$PATH
> export
> PATH=/Users/Muy01/Projects/Development/Android/android-ndk-r8b/:$PATH
>
> added --host=arm-linux-androideabi to the ./configure arguments list
> resulting in this error:
> checking host system type... Invalid configuration
> `arm-linux-androideabi': system `androideabi' not recognized
>
> Couldn't figure out how to get a list of available host system types so
> changed direction and decided to try and build the static lib via
> Android.mk file.
>
> Found this post on creating an appropriate Android.mk file
> http://stackoverflow.com/questions/12618829/cant-compile-avahi-on-android
>
> Realized that I don't have Android.mk files within all the subdirectories.
>
> Researched, downloaded, built, Androgenizer to try and convert all the
> Makefile.am files into Android.mk files.
> http://cgit.collabora.com/git/user/derek/androgenizer.git/
>
> Couldn't figure out or find info on how to do that though =/
>
> Decided to try and create my own Android.mk file:
> LOCAL_PATH := $(call my-dir)
> ROOT_LOCAL_PATH :=$(call my-dir)
>
> #Build avahi into a static lib
> include $(CLEAR_VARS)
> AVAHI_TOP := $(ROOT_LOCAL_PATH)/../avahi-0.6.31
>
>
> MY_SOURCES := $(wildcard $(AVAHI_TOP)/avahi-core/*.c*)
> MY_SOURCES += $(wildcard $(AVAHI_TOP)/avahi-common/*.c*)
> LOCAL_C_INCLUDES := $(AVAHI_TOP)
> LOCAL_SRC_FILES := $(MY_SOURCES:$(LOCAL_PATH)%=%)
>
> LOCAL_MODULE    := avahi
>
> include $(BUILD_STATIC_LIBRARY)
>
> Results in compile time errors for avahi-core/iface-linux.c:33:0:
> /avahi-0.6.31/avahi-core/iface-linux.h:27:8: Redefinition of 'struct
> AvahiInterfaceMonitorOSDep'
> /avahi-0.6.31/avahi-core/iface.h:46:16: Originally defined here
> /avahi-0.6.31/avahi-core/iface-linux.h:33:9: Redeclaration of enumerator
> 'LIST_IFACE'
> /avahi-0.6.31/avahi-core/iface.h:52:9: Previous definition of 'LIST_IFACE'
> was here
> /avahi-0.6.31/avahi-core/iface-linux.h:34:9: Redeclaration of enumerator
> 'LIST_ADDR'
> /avahi-0.6.31/avahi-core/iface.h:53:9: Previous definition of 'LIST_ADDR'
> was here
> /avahi-0.6.31/avahi-core/iface-linux.h:35:9: Redeclaration of enumerator
> 'LIST_DONE'
> /avahi-0.6.31/avahi-core/iface.h:54:9: Previous definition of 'LIST_DONE'
> was here
> /jni//../avahi-0.6.31/avahi-core/iface-linux.c: In function
> 'netlink_callback':
>
>
> And now I'm pretty much stuck.
>
> I tried #if 0'ing out the iface-linux.c and h files resulting in a
> cascading slew of other errors, so prob a bad idea.
> Thinking that it may be something I've done wrong with the ./configure
> command?
>
> I figure this must be something that quite a few developers are dealing
> with so I must be missing something because I can't seem to find any good
> information via google.
>
> Any help would be much appreciated!
>
> Thanks,
> Chris
>
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