Created
September 1, 2021 00:26
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gtk4 and gtk3, pango library error.
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| $ ./exampleapp | |
| ./exampleapp: symbol lookup error: /opt/gtk/lib/x86_64-linux-gnu/libgtk-4.so.1: undefined symbol: pango_fc_font_get_languages | |
| $ ldd exampleapp | grep pango | |
| libpangocairo-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 (0x00007f6f38dc3000) | |
| libpango-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x00007f6f38d74000) | |
| libpangoft2-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0 (0x00007f6f38d3c000) | |
| using old pango library. | |
| new one is under | |
| /opt/gtk/lib/x86_64-linux-gnu | |
| so, add shared library path file to /etc/ld.so.conf.d/ | |
| $ sudo vi /etc/ld.so.conf.d/opt_gtk_lib.conf | |
| add a line: | |
| /opt/gtk/lib/x86_64-linux-gnu | |
| $ sudo ldconfig -v | |
| $ ldd exampleapp | |
| libpangocairo-1.0.so.0 => /opt/gtk/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 (0x00007f171d5c0000) | |
| libpango-1.0.so.0 => /opt/gtk/lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x00007f171d56f000) | |
| libpangoft2-1.0.so.0 => /opt/gtk/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0 (0x00007f171d537000) | |
| correct library ;) |
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