Building the latest git version of amarok on ubuntu artful failed since some times with problems related to pthread and taglib:

Performing C++ SOURCE FILE Test COMPLEX_TAGLIB_FILENAME failed with the following output:
Change Dir: /usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_a71af/fast"
/usr/bin/make -f CMakeFiles/cmTC_a71af.dir/build.make CMakeFiles/cmTC_a71af.dir/build
make[1] : on entre dans le répertoire « /export/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp »
Building CXX object CMakeFiles/cmTC_a71af.dir/src.cxx.o
/usr/lib/ccache/c++ -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -I/usr/include/taglib -std=c++0x -fno-operator-names -fno-exceptions -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor -Woverloaded-virtual -Werror=return-type -Wvla -Wdate-time -DCOMPLEX_TAGLIB_FILENAME -I/usr/include/taglib -o CMakeFiles/cmTC_a71af.dir/src.cxx.o -c /usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp/src.cxx
/usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp/src.cxx: In function ‘int main()’:
/usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp/src.cxx:5:38: error: cannot convert ‘const wchar_t*’ to ‘TagLib::FileName {aka const char*}’ in initialization
TagLib::FileName fileName2(L"wchar");
^
/usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp/src.cxx:4:20: warning: unused variable ‘fileName1’ [-Wunused-variable]
TagLib::FileName fileName1("char");
^~~~~~~~~
/usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp/src.cxx:5:20: warning: unused variable ‘fileName2’ [-Wunused-variable]
TagLib::FileName fileName2(L"wchar");
^~~~~~~~~
CMakeFiles/cmTC_a71af.dir/build.make:65 : la recette pour la cible « CMakeFiles/cmTC_a71af.dir/src.cxx.o » a échouée
make[1]: *** [CMakeFiles/cmTC_a71af.dir/src.cxx.o] Erreur 1
make[1] : on quitte le répertoire « /export/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp »
Makefile:126 : la recette pour la cible « cmTC_a71af/fast » a échouée
make: *** [cmTC_a71af/fast] Erreur 2

And for pthread:

Determining if the pthread_create exist failed with the following output:
Change Dir: /usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_88eb9/fast"
/usr/bin/make -f CMakeFiles/cmTC_88eb9.dir/build.make CMakeFiles/cmTC_88eb9.dir/build
make[1] : on entre dans le répertoire « /export/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp »
Building C object CMakeFiles/cmTC_88eb9.dir/CheckSymbolExists.c.o
/usr/lib/ccache/cc -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -I/usr/include/taglib -std=iso9899:1990 -fno-common -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wmissing-format-attribute -Wwrite-strings -Werror=implicit-function-declaration -fmessage-length=0 -I/usr/include/taglib -o CMakeFiles/cmTC_88eb9.dir/CheckSymbolExists.c.o -c /usr/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_88eb9
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_88eb9.dir/link.txt --verbose=1
/usr/lib/ccache/cc -std=iso9899:1990 -fno-common -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wmissing-format-attribute -Wwrite-strings -Werror=implicit-function-declaration -fmessage-length=0 -I/usr/include/taglib -rdynamic CMakeFiles/cmTC_88eb9.dir/CheckSymbolExists.c.o -o cmTC_88eb9 -L/usr/lib/x86_64-linux-gnu -ltag
CMakeFiles/cmTC_88eb9.dir/CheckSymbolExists.c.o : Dans la fonction « main » :
CheckSymbolExists.c:(.text+0x1b) : référence indéfinie vers « pthread_create »
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_88eb9.dir/build.make:97 : la recette pour la cible « cmTC_88eb9 » a échouée
make[1]: *** [cmTC_88eb9] Erreur 1
make[1] : on quitte le répertoire « /export/src/amarok/build-ubuntu/CMakeFiles/CMakeTmp »
Makefile:126 : la recette pour la cible « cmTC_88eb9/fast » a échouée
make: *** [cmTC_88eb9/fast] Erreur 2

Can somebody explains what is happening ?
Thanks for your help.

That's strange, I'm also on (K)Ubuntu Artful and it builds fine here.

Can you need give the list of dev packages which are needed ?

Nobody can indicate which development packages need to be installed under ubuntu artful ? The git tree is updated more or less each day, but for me, it always fails in the same way.

you need all the -dev files for the dependencies listed in the README file. If this doesn't help, maybe give a tad more details of the command you use to build Amarok.

The readme file still refers to kde 4 and qt 4. It wouldn't be bad to update it a bit. Concerning the build command I use, I make a build directory and in that directory, I run cmake. ./

Then you should ask your question in the amarok-dev channel on IRC, ideally during CET day hours.

I tried to update the README yesterday morning, hopefully I didn't miss anything. Alternatively you can also look at the CMakeLists.txt (look at the find_package() calls).

Could you please export LANG=en_US.utf8 (or something like that, depending on which locales are installed, C might work as well) in your shell to get English error messages. More of cmake's output would be helpful, too.

Here is the fuild cmake output:
https://drive.google.com/open?id=1A48BFcN6eu-8FWARRkbxzgU99jZSzz6w

Here are the errors:
https://drive.google.com/open?id=10mdRlUbiC-GuAxGGlRa5fmY7dd4HoNOQ

It seems there is a problem with libtag, but almost all libtags package are installed. Here is the output of dpkg-query --list | grep libtag:
ii libtag-extras-dev 1.0.1-3.1 amd64 TagLib extras library - development files
ii libtag-extras1 1.0.1-3.1 amd64 TagLib extras library - support for more file formats
ii libtag1-dev:amd64 1.11.1+dfsg.1-0.2 amd64 audio meta-data library - development files
rc libtag1-vanilla:amd64 1.9.1-2 amd64 audio meta-data library - vanilla flavour
ii libtag1v5:amd64 1.11.1+dfsg.1-0.2 amd64 audio meta-data library
ii libtag1v5-vanilla:amd64 1.11.1+dfsg.1-0.2 amd64 audio meta-data library - vanilla flavour
ii libtagc0:amd64 1.11.1+dfsg.1-0.2 amd64 audio meta-data library - C bindings
ii libtagc0-dev:amd64 1.11.1+dfsg.1-0.2 amd64 audio meta-data library - development files for C bindings
ii libtaglibs-standard-impl-java 1.2.5-2 all Apache JSP Standard Taglib Implementation
ii libtaglibs-standard-spec-java 1.2.5-2 all Apache JSP Standard Taglib Specification API

So I don't understand why it complains about it.