Bug 220953 – FEATURES="preserve-libs": @preserved-rebuild set sometimes needlessly contains packages whose libraries were preserved + Unneeded preserved libraries should be deleted immediately

• Status: RESOLVED FIXED
• Product: Portage Development

[Description Arfrever Frehtes Taifersar Arahesis (RETIRED) 2008-05-08 15:31:00 UTC]

FEATURES="preserve-libs": @preserved-rebuild set sometimes needlessly contains packages whose libraries were preserved + Unneeded preserved libraries should be deleted immediately.

Steps to reproduce:
1. USE="-sdl" LDFLAGS="-Wl,--as-needed" emerge -1 =dev-libs/DirectFB-1.0*
2. USE="-directfb -sdl" LDFLAGS="-Wl,--as-needed" emerge -1 @preserved-rebuild
3. USE="directfb -sdl" LDFLAGS="-Wl,--as-needed" emerge -1 www-client/links
4. USE="-sdl" LDFLAGS="-Wl,--as-needed" emerge -1 =dev-libs/DirectFB-1.1*

Now @preserved-rebuild set contains www-client/links and =dev-libs/DirectFB-1.1*.
# portageq list_preserved_libs /
dev-libs/DirectFB-1.1.1 /usr/lib/libdirect-1.0.so.0 /usr/lib/libdirectfb-1.0.so.0 /usr/lib/libfusion-1.0.so.0 /usr/lib/libdirect-1.0.so.0.0.0 /usr/lib/libdirectfb-1.0.so.0.0.0 /usr/lib/libfusion-1.0.so.0.0.0
# 

5. USE="directfb -sdl" LDFLAGS="-Wl,--as-needed" emerge -1 www-client/links

# portageq list_preserved_libs /
dev-libs/DirectFB-1.1.1 /usr/lib/libdirect-1.0.so.0 /usr/lib/libdirectfb-1.0.so.0 /usr/lib/libfusion-1.0.so.0 /usr/lib/libdirect-1.0.so.0.0.0 /usr/lib/libdirectfb-1.0.so.0.0.0 /usr/lib/libfusion-1.0.so.0.0.0
# 

6. emerge -1 virtual/opengl

Between EBUILD_PHASE="postrm" and EBUILD_PHASE="cleanrm" there is:
<<< !needed   sym /usr/lib/libdirectfb-1.0.so.0
<<< !needed   obj /usr/lib/libdirectfb-1.0.so.0.0.0

# portageq list_preserved_libs /
dev-libs/DirectFB-1.1.1 /usr/lib/libdirect-1.0.so.0 /usr/lib/libfusion-1.0.so.0 /usr/lib/libdirect-1.0.so.0.0.0 /usr/lib/libfusion-1.0.so.0.0.0
# 

7. emerge -1 virtual/opengl

Between EBUILD_PHASE="postrm" and EBUILD_PHASE="cleanrm" there is:
<<< !needed   sym /usr/lib/libfusion-1.0.so.0
<<< !needed   obj /usr/lib/libfusion-1.0.so.0.0.0

# portageq list_preserved_libs /
dev-libs/DirectFB-1.1.1 /usr/lib/libdirect-1.0.so.0 /usr/lib/libdirect-1.0.so.0.0.0
# 

8. emerge -1 virtual/opengl

Between EBUILD_PHASE="postrm" and EBUILD_PHASE="cleanrm" there is:
<<< !needed   sym /usr/lib/libdirect-1.0.so.0
<<< !needed   obj /usr/lib/libdirect-1.0.so.0.0.0

# portageq list_preserved_libs /
# emerge @preserved-rebuild
emerge: 'preserved-rebuild' is an empty set
emerge: no targets left after set expansion
#

[Comment 1 Jeroen Roovers (RETIRED) 2008-07-23 03:09:34 UTC]

*** Bug 232672 has been marked as a duplicate of this bug. ***

[Comment 2 Matthias Liebig 2008-10-05 19:17:11 UTC]

I think I just observed the same issue with gcc. I updated from sys-devel/gcc-4.3.1-r1 to 4.3.2 (I have only sys-devel/gcc:4.3 installed).

1. emerge -uaDvN1 @world @system

...
!!! existing preserved libs:
>>> package: sys-devel/gcc-4.3.2
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.so.1
 *      used by /usr/bin/animate (media-gfx/imagemagick-6.4.3.5)
 *      used by /usr/bin/compare (media-gfx/imagemagick-6.4.3.5)
 *      used by /usr/bin/composite (media-gfx/imagemagick-6.4.3.5)
 *      used by 119 other files
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libstdc++.so.6
 *      used by /lib/libusbpp-0.1.so.4.4.4 (dev-libs/libusb-0.1.12-r4)
 *      used by /opt/Adobe/HelpViewer/1.0/intellinux/bin/ahv-binary (app-text/acroread-8.1.2-r3)
 *      used by /opt/Adobe/Reader8/Browser/intellinux/nppdf.so (app-text/acroread-8.1.2-r3)
 *      used by 1788 other files
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgcc_s.so.1
 *      used by /lib/libusbpp-0.1.so.4.4.4 (dev-libs/libusb-0.1.12-r4)
 *      used by /opt/Adobe/HelpViewer/1.0/intellinux/bin/ahv-binary (app-text/acroread-8.1.2-r3)
 *      used by /opt/Adobe/Reader8/Browser/intellinux/nppdf.so (app-text/acroread-8.1.2-r3)
 *      used by 1777 other files
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.so.1.0.0
 *      used by /usr/bin/animate (media-gfx/imagemagick-6.4.3.5)
 *      used by /usr/bin/compare (media-gfx/imagemagick-6.4.3.5)
 *      used by /usr/bin/composite (media-gfx/imagemagick-6.4.3.5)
 *      used by 119 other files
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libstdc++.so.6.0.10
 *      used by /lib/libusbpp-0.1.so.4.4.4 (dev-libs/libusb-0.1.12-r4)
 *      used by /opt/Adobe/HelpViewer/1.0/intellinux/bin/ahv-binary (app-text/acroread-8.1.2-r3)
 *      used by /opt/Adobe/Reader8/Browser/intellinux/nppdf.so (app-text/acroread-8.1.2-r3)
 *      used by 1788 other files
Use emerge @preserved-rebuild to rebuild packages using these libraries

2. emerge -av1 @preserved-rebuild

emerge: 'preserved-rebuild' is an empty set
emerge: no targets left after set expansion

3. emerge -uaDvN1 @world @system

Nothing to merge; would you like to auto-clean packages? [Yes/No] y
>>> Auto-cleaning packages...

>>> No outdated packages were found on your system.

 * Regenerating GNU info directory index...

!!! existing preserved libs:
>>> package: sys-devel/gcc-4.3.2
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.so.1
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libstdc++.so.6
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgcc_s.so.1
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.so.1.0.0
 *  - /usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libstdc++.so.6.0.10
Use emerge @preserved-rebuild to rebuild packages using these libraries

4. emerge @preserved-rebuild

emerge: 'preserved-rebuild' is an empty set
emerge: no targets left after set expansion

[Comment 3 Zac Medico 2008-10-05 19:28:14 UTC]

(In reply to comment #2)
> I think I just observed the same issue with gcc. I updated from
> sys-devel/gcc-4.3.1-r1 to 4.3.2 (I have only sys-devel/gcc:4.3 installed).

This sort of problem is triggered whenever a library moves from one directory to another. I'm planning to fix this particular problem by searching the directories of the new package for equivalent libraries and eliminating duplicates when appropriate.

[Comment 4 Zac Medico 2011-05-18 16:40:28 UTC]

This should be fixed in 2.2.0_alpha34 (among many other preserve-libs fixes, including bug 286714). Please re-open if you can still reproduce it.