Ryzom

same issue on opensuse :(

Please could you tell me what libwww library is depending on expat ?

I don't like overlinking so I will search a way to detect dependencies with tools like objdump.

Or better, could you type:

objdump -T <full path of your lib> | grep "*UND*"

i'm not sure if this changes the situation, but I get some "unresolved symbols" errors about XML parsing after client compilation. So I think on other distributions libexpat is linked by some libwww libraries. But this is not working on opensuse and archlinux. The solution is to manually link it in the cmake script.

Overlinking is not the the solution:

http://wiki.mandriva.com/en/Overlinking

And Lintian will complain about this.

To prevent "unresolved symbols" you need to link all your libs with --no-undefined, we did that for Ryzom and NeL but 3rd-party libs don't always make that.

Example: If libpng is using libz, it must be linked to, an application which uses libpng shouldn't need to link to libz.

Some distributions always compile all their packages with --as-needed and/or --no-undefined, so they avoid this kind of errors.

objdump -T /usr/lib/libxml2.so | grep "*UND*"

http://pastebin.com/vci4NykY

gnaahh, sorry, perhaps this was the wrong lib :/

I think it was libxmlparse which produced the linker error without linking to expat.

objdump -T /usr/lib/libxmlparse.so | grep "*UND*"

http://paste.pocoo.org/show/269778

Yep, you're right :)

I made a CMake macro yesterday and it can detects if we need to manually link to it or not :)

So it should fix all your problems :)

Is it in the hg repo already ?
Because there seem to be no changes since my (failed) last try yesterday ;)

No, I need to do more checks :(

I put there another link for reference :

http://wiki.mandriva.com/en/Underlinking

After checking libwww code, it seems like libwwwxml.so should be linked to libxmlparse.so which belongs to libwww package :) libxmlparse.so is similar to expat (it uses most of its code).

Please could you try with last changes ?

It should work but perhaps it needs some little tweaks.

I would like to test it but now it fails at 79% with this msg:

[ 79%] Building CXX object ryzom/client/src/CMakeFiles/ryzom_client.dir/interface_v3/view_text.cpp.o
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp: In member function ‘void CViewText::setupDefault()’:
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp:80:21: error: ‘numeric_limits’ is not a member of ‘std’
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp:80:45: error: expected primary-expression before ‘>’ token
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp:80:52: error: no matching function for call to ‘max()’
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp: In member function ‘void CViewText::disableStringSelection()’:
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp:1798:21: error: ‘numeric_limits’ is not a member of ‘std’
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp:1798:45: error: expected primary-expression before ‘>’ token
/home/flocke/build/ryzom/code/ryzom/client/src/interface_v3/view_text.cpp:1798:52: error: no matching function for call to ‘max()’
make[2]: *** [ryzom/client/src/CMakeFiles/ryzom_client.dir/interface_v3/view_text.cpp.o] Error 1
make[1]: *** [ryzom/client/src/CMakeFiles/ryzom_client.dir/all] Error 2

Thanks, it's fixed now :)

I notice that the error reported here is the same as the one reported in error 1113. A reported fix there was to add

#include <limits>

to the top of the file at the bottom of the other includes. Perhaps you could add that line to view_text.cpp at the top of the code after the other include lines and see if it then compiles - or at least gets past those errors...

Ok with the newest hg version it works until the linking:

Linking CXX executable ../../../bin/ryzom_client
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwgopher.so: undefined reference to `HTIcon_alternative'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addDir'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTStreamToChunk'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTFWriter_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_add'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwmime.so: undefined reference to `HTPipeBuffer'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwnews.so: undefined reference to `HTBuffer_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTSaveLocally'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwhttp.so: undefined reference to `HTTee'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwgopher.so: undefined reference to `HTIcon_find'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwgopher.so: undefined reference to `HTIcon_url'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwfile.so: undefined reference to `HTDir_free'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTSaveAndExecute'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwfile.so: undefined reference to `HTDir_addElement'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTGuess_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addParent'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwfile.so: undefined reference to `HTDir_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwmime.so: undefined reference to `HTMerge'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addBlank'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addUnknown'
collect2: ld returned 1 exit status
make[2]: *** [bin/ryzom_client] Error 1
make[1]: *** [ryzom/client/src/CMakeFiles/ryzom_client.dir/all] Error 2
make: *** [all] Error 2

This is the part of the cmake output about libwww stuff

-- Warning: Libwww: Library not found: LIBREGEX_LIBRARY
-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libwwwcache.so but is not linked to, manually linking...
-- Linking with /usr/lib/libwwwcache.so
-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libwwwftp.so but is not linked to, manually linking...
-- Linking with /usr/lib/libwwwftp.so
-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libwwwgopher.so but is not linked to, manually linking...
-- Linking with /usr/lib/libwwwgopher.so
-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libwwwnews.so but is not linked to, manually linking...
-- Linking with /usr/lib/libwwwnews.so
-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libwwwtelnet.so but is not linked to, manually linking...
-- Linking with /usr/lib/libwwwtelnet.so
-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libwwwxml.so but is not linked to, manually linking...
-- Linking with /usr/lib/libwwwxml.so
-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libwwwzip.so but is not linked to, manually linking...
-- Linking with /usr/lib/libwwwzip.so
-- Underlinking found: /usr/lib/libwwwxml.so needs /usr/lib/libxmlparse.so but is not linked to, manually linking...
-- Linking with /usr/lib/libxmlparse.so
-- Underlinking found: /usr/lib/libwwwxml.so needs /usr/lib/libexpat.so but is not linked to, manually linking...
-- Linking with /usr/lib/libexpat.so
-- Underlinking found: /usr/lib/libwwwhttp.so needs /usr/lib/libmd5.so but is not linked to, manually linking...
-- Linking with /usr/lib/libmd5.so
-- Found LibWWW: /usr/lib/libwwwapp.so;/usr/lib/libwwwcore.so;/usr/lib/libwwwfile.so;/usr/lib/libwwwhtml.so;/usr/lib/libwwwhttp.so;/usr/lib/libwwwmime.so;/usr/lib/libwwwtrans.so;/usr/lib/libwwwutils.so;/usr/lib/libwwwcache.so;/usr/lib/libwwwftp.so;/usr/lib/libwwwgopher.so;/usr/lib/libwwwnews.so;/usr/lib/libwwwtelnet.so;/usr/lib/libwwwxml.so;/usr/lib/libwwwzip.so;/usr/lib/libxmlparse.so;/usr/lib/libexpat.so;/usr/lib/libmd5.so

Thanks a lot for providing us all the necessary details :)

Thanks to you, I will be able to add more checks for undefined symbols :)

No problem :)
I´m glad I can help you.

Just ask if you need some more details or logs

I just compiled it and everything worked fine, thanks a lot :)

I have now this problem on my lastest ryzom hg version:

[ 83%] Built target ryzom_entities_game_service
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTLoadFTP'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTLoadCache'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTNewsList'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addDir'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwmime.so: undefined reference to `HTCacheMode_enabled'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTStreamToChunk'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTLoadGopher'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTXML_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTFWriter_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_add'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwmime.so: undefined reference to `HTPipeBuffer'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTSaveLocally'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTNewsGroup'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTCacheWriter'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwhttp.so: undefined reference to `HTTee'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwhttp.so: undefined reference to `MD5Init'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwfile.so: undefined reference to `HTDir_free'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTLoadTelnet'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTSaveAndExecute'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwhttp.so: undefined reference to `MD5Final'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwfile.so: undefined reference to `HTDir_addElement'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTGuess_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwhttp.so: undefined reference to `MD5Update'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addParent'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwfile.so: undefined reference to `HTDir_new'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwmime.so: undefined reference to `HTMerge'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addBlank'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTIcon_addUnknown'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTLoadNews'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwmime.so: undefined reference to `HTCache_addHit'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwmime.so: undefined reference to `HTCache_name'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTZLib_inflate'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwmime.so: undefined reference to `HTCache_find'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/../../../../lib/libwwwapp.so: undefined reference to `HTCacheAppend'
collect2: ld gab 1 als Ende-Status zurück
make²: * [bin/ryzom_client] Fehler 1
make¹: [ryzom/client/src/CMakeFiles/ryzom_client.dir/all] Fehler 2
make: ** [all] Fehler 2

Please what warnings do you have when CMake is checking for libwww ?

I have the same error as LinuxDonald. I use Archlinux 64bit.

[[-- Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libssl.so;/usr/lib/libcrypto.so but is not linked to, manually linking...
-- Linking with /usr/lib/libssl.so;/usr/lib/libcrypto.so
-- Found LibWWW: /usr/lib/libwwwapp.so;/usr/lib/libwwwcore.so;/usr/lib/libwwwfile.so;/usr/lib/libwwwhtml.so;/usr/lib/libwwwhttp.so;/usr/lib/libwwwmime.so;/usr/lib/libwwwcache.so;/usr/lib/libwwwstream.so;/usr/lib/libwwwtrans.so;/usr/lib/libwwwutils.so;/usr/lib/libssl.so;/usr/lib/libcrypto.so
]]

Seems like all the libs from my post #20 that should be detected manually are missing in this list.
Maybe there is something wrong with the script that detects the underlinking.

Underlinking found: /usr/lib/libwwwapp.so needs /usr/lib/libssl.so;/usr/lib/libcrypto.so but is not linked to, manually linking...

That's not normal.

It should list only one lib not two separated by a semi-column.

This is the value of OPENSSL_LIBRARIES after you called "FIND_PACKAGE(OpenSSL QUIET)" in FindLibwww.cmake.

I just started the build after I made some minor changes in CheckDepends.cmake, I will report if it worked soon.

i can confirm. with the last patch from flocke all works great :)

It works for me too :) Thank you :)

It indeed needs some rethinking for windows. After your patch it reads:

  [...]
  SET(${SYMBOL_FOUND} FALSE)
  IF(WIN32)
    # Always TRUE under Windows because we are using static libraries
  ELSEIF(APPLE)
  [...]

Could you please recheck if the current version (r1423) works for you without patching?

It works for me, I just compiled it without the patch!

Ok thanks for reporting back!
And thanks a lot for your patch. Is was a great inspiration :)

No problem, I don't play Ryzom anymore but I 'm glad I can help.
You can always ask me if you need some testing on an Archlinux system ;)

I think I will start playing again in the future, right now I don't have the money and time ;)