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On Thu, 25 Oct 2018 09:30:00 +0300 Nikos Chantziaras wrote: |
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> Trying to rebuild media-sound/pavucontrol or any other package that uses |
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> dev-cpp/cairomm (like pulseeffects) will fail with: |
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> |
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> /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: |
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> /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/../../../../lib64/libcairomm-1.0.so: |
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> undefined reference to `cairo_script_create' |
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> |
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> and a bunch of other "undefined reference" errors in libcairomm-1.0.so. |
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> I don't know what broke cairomm. But I thought revdep-rebuild would |
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> catch this. It doesn't. |
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> |
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> Now this is a rebuild of pavucontrol, so if I run: |
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> |
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> ldd -r /usr/bin/pavucontrol |
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> |
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> I will get: |
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> |
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> undefined symbol: cairo_script_create_for_stream |
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> (/usr/lib64/libcairomm-1.0.so.1) |
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> undefined symbol: cairo_script_set_mode (/usr/lib64/libcairomm-1.0.so.1) |
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> undefined symbol: cairo_script_surface_create |
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> (/usr/lib64/libcairomm-1.0.so.1) |
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> undefined symbol: cairo_script_from_recording_surface |
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> (/usr/lib64/libcairomm-1.0.so.1) |
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> undefined symbol: cairo_script_create (/usr/lib64/libcairomm-1.0.so.1) |
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> undefined symbol: cairo_script_surface_create_for_target |
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> (/usr/lib64/libcairomm-1.0.so.1) |
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> undefined symbol: cairo_script_get_mode (/usr/lib64/libcairomm-1.0.so.1) |
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> undefined symbol: cairo_script_write_comment |
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> (/usr/lib64/libcairomm-1.0.so.1) |
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> |
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> If I rebuild dev-cpp/cairomm manually (emerge -1 dev-cpp/cairomm), the |
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> error goes away, and the affected packages can now be emerged successfully. |
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> |
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> Shouldn't revdep-rebuild catch this problem? Shouldn't it check |
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> installed binaries for "undefined symbol" errors? |
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|
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revdep-rebuild catches libraries from removed packages (including |
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removed older versions) still in use by other packages. Though with |
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proper subslot dependencies revdep-rebuild is rarely needed. |
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|
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If for some reason library containing required symbol was |
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forcefully removed, revdep-rebuild cannot magically recreate that |
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symbol. |
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|
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Best regards, |
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Andrew Savchenko |
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