Bug 834291

Summary:	sys-apps/portage-3.0.30-r1: Spurious "Error! Installing dynamic libraries (.so) with blank PROVIDES!" with FEATURES=fakeroot
Product:	Portage Development	Reporter:	Ulrich Müller <ulm>
Component:	Core - Ebuild Support	Assignee:	Portage team <dev-portage>
Status:	CONFIRMED ---
Severity:	normal	CC:	gentoo, sam
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=811462 https://bugs.gentoo.org/show_bug.cgi?id=867574
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	build.log emerge --info

Description Ulrich Müller gentoo-dev

2022-02-27 11:26:08 UTC

Seen with dev-db/qt5-sqlcipher-1.0.11-r1 and FEATURES=fakeroot:

$ ebuild qt5-sqlcipher-1.0.11-r1.ebuild install
[...]
 * Error! Installing dynamic libraries (.so) with blank PROVIDES!
strip: x86_64-pc-linux-gnu-strip --strip-unneeded -N __gentoo_check_ldflags__ -R .comment -R .GCC.command.line -R .note.gnu.gold-version

Also note the empty list of files in the strip line.

Comment 1 Ulrich Müller gentoo-dev

2022-02-27 11:26:33 UTC

Created attachment 765933 [details]
build.log

Comment 2 Ulrich Müller gentoo-dev

2022-02-27 11:26:52 UTC

Created attachment 765934 [details]
emerge --info

Comment 3 Ulrich Müller gentoo-dev

2022-05-19 06:53:44 UTC

Ping.

I see this with a second package now: media-gfx/word_cloud-1.8.1

Comment 4 Sam James archtester

2022-05-19 07:08:45 UTC

I don't use fakeroot and at the moment, I'm overwhelmed with other work. I'm afraid I can't guarantee I can work on this any time soon.

It would be helpful to identify what makes fakeroot different.

Comment 5 Sam James archtester

2022-05-19 07:11:35 UTC

(In reply to Sam James from comment #4)
> I don't use fakeroot and at the moment, I'm overwhelmed with other work. I'm
> afraid I can't guarantee I can work on this any time soon.
> 
> It would be helpful to identify what makes fakeroot different.

Specifically: look at what scanelf is called as, does its args or output differ? What about the contents of NEEDED.ELF.2? Etc

Comment 6 Ulrich Müller gentoo-dev

2022-05-19 10:48:34 UTC

scanelf calls with and without FEATURES=fakeroot are identical. The output for the last command is different:

Without fakeroot:

/usr/bin/scanelf -yRBF %a;%p;%S;%r;%n /tmp/portage/media-gfx/word_cloud-1.8.1/image/
EM_X86_64;usr/lib/debug/usr/lib/python3.10/site-packages/wordcloud/query_integral_image.cpython-310-x86_64-linux-gnu.so.debug;;  -  ;
EM_X86_64;usr/lib/debug/usr/lib/python3.9/site-packages/wordcloud/query_integral_image.cpython-39-x86_64-linux-gnu.so.debug;;  -  ;
EM_X86_64;usr/lib/python3.10/site-packages/wordcloud/query_integral_image.cpython-310-x86_64-linux-gnu.so;;  -  ;libc.so.6
EM_X86_64;usr/lib/python3.9/site-packages/wordcloud/query_integral_image.cpython-39-x86_64-linux-gnu.so;;  -  ;libc.so.6

With fakeroot:

/usr/bin/scanelf -yRBF %a;%p;%S;%r;%n /tmp/portage/media-gfx/word_cloud-1.8.1/image/
EM_X86_64;usr/lib/python3.10/site-packages/wordcloud/query_integral_image.cpython-310-x86_64-linux-gnu.so;;  -  ;libc.so.6
EM_X86_64;usr/lib/python3.9/site-packages/wordcloud/query_integral_image.cpython-39-x86_64-linux-gnu.so;;  -  ;libc.so.6

That is, the files in /usr/lib/debug/ are not there. Which I guess is expected due to the empty list of files in the strip command in this case.