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POQt Creator does not find functions inside library
 

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  1. POQt Creator does not find functions inside library
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    <p>I'm on Ubuntu 13.04 trying to use functions from the <a href="http://packages.ubuntu.com/search?searchon=contents&amp;keywords=gsettingsschema.h&amp;mode=exactfilename&amp;suite=raring&amp;arch=any" rel="nofollow">gsettingsschema.h library</a></p> <p>This is my .pro file</p> <pre><code>QT+=core QT-=gui TARGET=gsettings_test CONFIG+=console CONFIG-=app_bundle CONFIG+=link_pkgconfig PKGCONFIG+=gio-2.0 TEMPLATE=app SOURCES+=main.cpp </code></pre> <p>pkg-config --libs gio-2.0 reports :</p> <pre><code>-lgio-2.0 -lgobject-2.0 -lglib-2.0 </code></pre> <p>which sounds good to me.</p> <p>In my program I use both the gio/gio.h and gio/gsettingsschema.h libraries. The compiler is able to find the functions from gio.h (like g_settings_new_full()) but it is not able to find the functions from gsettingsschema.h</p> <p>I get an error like:</p> <pre><code>undefined reference to 'g_settings_schema_source_get_default()' </code></pre> <p>What's happening here?</p> <p>EDIT: Full compilation output (as reported from Qt Creator):</p> <pre><code>01:46:09: Running steps for project gsettings_test... 01:46:09: Starting: "/usr/bin/qmake" /home/alex/Qt/gsettings_test/gsettings_test.pro -r -spec linux-g++ CONFIG+=debug CONFIG+=declarative_debug CONFIG+=qml_debug 01:46:09: The process "/usr/bin/qmake" exited normally. 01:46:09: Starting: "/usr/bin/make" g++ -o gsettings_test main.o -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lQt5Core -lpthread main.o: In function `gsettings_get(QString, QString)': /home/alex/Qt/build-gsettings_test-Desktop-Debug/../gsettings_test/main.cpp:17: undefined reference to `g_settings_schema_source_get_default()' /home/alex/Qt/build-gsettings_test-Desktop-Debug/../gsettings_test/main.cpp:17: undefined reference to `g_settings_schema_source_ref(_GSettingsSchemaSource*)' /home/alex/Qt/build-gsettings_test-Desktop-Debug/../gsettings_test/main.cpp:19: undefined reference to `g_settings_schema_source_lookup(_GSettingsSchemaSource*, char const*, int)' collect2: error: ld returned 1 exit status make: *** [gsettings_test] Error 1 01:46:10: The process "/usr/bin/make" exited with code 2. Error while building/deploying project gsettings_test (kit: Desktop) When executing step 'Make' 01:46:10: Elapsed time: 00:01. </code></pre> <p>Libgio exact filename:</p> <p>/usr/lib/i386-linux-gnu/libgio-2.0.so.0.3600.0</p> <p>Helpful command:</p> <pre><code>alex@MaD-pc:~$ sudo ldconfig -v | grep gio [sudo] password for alex: /sbin/ldconfig.real: Can't stat /lib/i686-linux-gnu: No such file or directory /sbin/ldconfig.real: Can't stat /usr/lib/i686-linux-gnu: No such file or directory /sbin/ldconfig.real: Path `/lib/i386-linux-gnu' given more than once /sbin/ldconfig.real: Path `/usr/lib/i386-linux-gnu' given more than once libgiomm-2.4.so.1 -&gt; libgiomm-2.4.so.1.3.0 libgio-2.0.so.0 -&gt; libgio-2.0.so.0.3600.0 </code></pre>
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    1. PTQuestion
    1. UShytromo
    1. UShytromo
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    1. VO
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      1. VTUpMod
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    1. COHow does the linker call look like?
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      1. POQt Creator does not find functions inside library
      1. USFrank Osterfeld
    2. COWhat is the **exact** version of your gio libs? Might be that yours are too old.
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      1. POQt Creator does not find functions inside library
      1. USGreenflow
    3. CO@FrankOsterfeld That's the command used for compilation: `g++ -o gsettings_test main.o -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lQt5Core -lpthread` @Greenflow you again :) I'm on Ubuntu 13.04, so I don't think that my gio libs are old (http://i.imgur.com/53b4Nao.png)
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      1. UShytromo
 

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