Created attachment 94960 [details]
configure log

When I try to build SyncEvolution 1.4 with the akonadi backend, I get the
following error:

checking Akonadi/Collection usability... no
checking Akonadi/Collection presence... no
checking for Akonadi/Collection... no
configure: error: akonadi.pc not found. Install it to compile with the Akonadi
backend enabled.

"kde4-config --path include" gives "/usr/include/" and
"/usr/include/KDE/Akonadi/Collection" exists.

The problem seems to be that path to the QString include file is missing in
CPPFLAGS:

configure:21857: checking Akonadi/Collection presence
configure:21857: g++ -E  -I/usr/include/ -I/usr/include//KDE -I/usr/include/qt4
conftest.cpp
In file included from
/usr/include//KDE/Akonadi/../../akonadi/collection.h:25:0,
                 from /usr/include//KDE/Akonadi/Collection:1,
                 from conftest.cpp:44:
/usr/include/akonadi/entity.h:24:19: fatal error: QString: No such file or
directory
 #include <QString>
                   ^
compilation terminated.

I have attached the configure log.