Cannot compile on *buntu

[Slesa]

One problem seems to be the line

unix {
  PKGCONFIG += hunspell
}

but after commenting it out, I get

hunspell/spellchecker.cpp:27:33: fatal error: hunspell/hunspell.hxx: No such file or directory
 #include <hunspell/hunspell.hxx>

so I add the line

unix:INCLUDEPATH += $$PWD/../3rdparty/hunspell/src

and finally I'll end up with

/usr/bin/ld: cannot find -lmarkdown
/usr/bin/ld: cannot find -lhoedown

Ok, hoedown was not build, so I change the directory to it and call 'build' - only markdown left. I could install it, but I don't like to.
It should be possible to add the library path pointing to the 3rdpart directory of discount...

(When installing discount of the Ubuntu system, I get a lot of unresolved externals of hunspell)

spellchecker.o: In function `hunspell::SpellChecker::~SpellChecker()':
spellchecker.cpp:(.text+0x35): undefined reference to `Hunspell::~Hunspell()'
spellchecker.o: In function `hunspell::SpellChecker::isCorrect(QString const&)':
spellchecker.cpp:(.text+0xdc): undefined reference to `Hunspell::spell(char const*, int*, char**)'
spellchecker.o: In function `hunspell::SpellChecker::suggestions(QString const&)':
spellchecker.cpp:(.text+0x1af): undefined reference to `Hunspell::suggest(char***, char const*)'
spellchecker.cpp:(.text+0x23c): undefined reference to `Hunspell::free_list(char***, int)'
spellchecker.o: In function `hunspell::SpellChecker::addToUserWordlist(QString const&)':
spellchecker.cpp:(.text+0xda1): undefined reference to `Hunspell::add(char const*)'
spellchecker.o: In function `hunspell::SpellChecker::loadUserWordlist(QString const&)':
spellchecker.cpp:(.text+0xf7e): undefined reference to `Hunspell::add(char const*)'
spellchecker.o: In function `hunspell::SpellChecker::loadDictionary(QString const&)':
spellchecker.cpp:(.text+0x1093): undefined reference to `Hunspell::~Hunspell()'
spellchecker.cpp:(.text+0x12e7): undefined reference to `Hunspell::Hunspell(char const*, char const*, char const*)'
spellchecker.cpp:(.text+0x132e): undefined reference to `Hunspell::get_dic_encoding()'

[cloose]

Interesting. The CI build (travis-ci.org) uses Ubuntu. So Ubuntu should definitely work.

The following script is used to build on Ubuntu: https://github.com/cloose/CuteMarkEd/blob/develop/.travis.yml

As far as I remember you have to set the LD_LIBRARY_PATH, so that the system picks up your local libraries.

[Slesa]

Well - it works because the yml script installs the libraries :)
But in theory, this should not be necessary. There are two .so libraries as dependencies, it should be possible to link against them with an adequate LD_PATH. At the end of the build process, there should be an package, which can be installed and uninstalled, shouldn't it?

[Slesa]

I changed the app.pro so that the path to hunspell and discount is added to the library path. Now I get

spellchecker.o: In function `hunspell::SpellChecker::~SpellChecker()':
spellchecker.cpp:(.text+0x35): undefined reference to `Hunspell::~Hunspell()'
spellchecker.o: In function `hunspell::SpellChecker::isCorrect(QString const&)':
spellchecker.cpp:(.text+0xdc): undefined reference to `Hunspell::spell(char const*, int*, char**)'

and a few more. Are you sure that hunspell is not installed from the packaging on the system, and this is preferred in the lib path?

[Slesa]

There is definitively something going wrong...

In app.pro, I removed the PKGCONFIG line for hunspell. Instead, I added the unix part

# hunspell
win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../3rdparty/hunspell/lib/ -lhunspell
else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../3rdparty/hunspell/lib/ -lhunspell
else:unix: LIBS += -L$$OUT_PWD/../3rdparty/hunspell/lib/ -Llibhunspell

and I still get the unresolved externals mentioned above. Ok, no problem, use the install script (which doesn't make a difference. It would copy the file with the same unresolveds, but anyway...). cd 3rdparty/hunspell && make install - 'Nothing to be done for install'. Of course, the install target in the Makefile is empy. Ok ok, what about sudo apt-get install libhunspell-dev? - 'Selecting previously unselected package... installed'.

ls /usr/bin/hunspell - [ok]
ls /usr/share/hunspell/de_DE, fr_FR, fr_LU etc... [ok]
ls /usr/lib/hu* - no such file or directory

Holy towel - what has to be done to work with hunspell?

[cloose]

else:unix: LIBS += -L$$OUT_PWD/../3rdparty/hunspell/lib/ -Llibhunspell

1. you used -L (uppercase) to specify the library but this is the flag for library paths. You need to use -l (lowercase)
2. AFAIK, libraries on Linux are called libsomething.so but you only specify something for the linker flag. So please try it with -lhunspell

[Slesa]

If I remember right, -L is also used for dynamic linking, while -l is for static libs.

It is a bit strange that there is this distinction between unix and windows at all. Shouldn't there be a big part with LIBS += hunspell etc... ? Then Qt should do the stuf for us.

[Slesa]

You should consider to disable some Qt modules via CONFIG -= ... I can't see so far any sense to support Sql stuff.

[cloose]

Sorry but I don't think it will work. Not CuteMarkEd depends on QtSql but one of the Qt modules. If I remember correctly it was Qt WebKit that depends on QtSql.

[Slesa]

Ah ok. Yes, you're right, it is QWebKit. And it depends on QSensors. I assume, I'll find a reason for OpenGL too somewhere. Qt4 was somehow more modularized :/

[cloose]

I expect the problems to big fixed since there were quite some changes to the build system. If not, I need more and especially newer information.