Bug 541114

Summary:	on uclibc profile, env-update does not include individual gcc library directory in /etc/ld.so.conf
Product:	Gentoo Linux	Reporter:	Michael Dec <grepwood>
Component:	[OLD] Core system	Assignee:	Embedded Gentoo Team <embedded>
Status:	RESOLVED NEEDINFO
Severity:	normal	CC:	base-system
Priority:	Normal
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Michael Dec 2015-02-23 10:06:06 UTC

Changing the systemwide gcc version will cause env-update to fail every time to add the new gcc's library directory to /etc/ld.so.conf

Reproducible: Always

Steps to Reproduce:
1. Install Gentoo with uClibc stage3.
2. Install a different version of gcc than the one the stage3 was shipped with.
3. Switch over to the new gcc with gcc-config

Actual Results:  
/etc/ld.so.conf does not include /usr/lib/gcc/$toolchain/$gcc_version. Re-running env-update and ldconfig will not fix this. One of the consequences of this is inability to run binaries linked dynamically against the C++ standard library.

Expected Results:  
/etc/ld.so.conf should include /usr/lib/gcc/$toolchain/$gcc_version

Adding /usr/lib/gcc/$toolchain/$gcc_version to /etc/ld.so.conf and running ldconfig seems to fix the issue if /lib and /usr/lib will be uncommented from the file.

Also, /etc/ld.so.conf.d directory is missing in stage3 and this is required to build kernels with genkernel. Making this directory in advance give the system an opportunity to generate a file called 05gcc-x86_64-gentoo-linux-uclibc.conf at some point (not exactly sure when) that contains the line missing from ld.so.conf.

Comment 1 Andrew Savchenko gentoo-dev

2015-02-28 01:34:58 UTC

Please submit emerge --info output.

Comment 2 SpanKY gentoo-dev

2015-02-28 05:31:30 UTC

why do you think genkernel requires /etc/ld.so.conf.d ?

did you create that dir *before* running gcc-config ?  if you delete that dir and then run gcc-config, do things work correctly ?

Comment 3 Anthony Basile gentoo-dev

2016-01-03 00:18:09 UTC

this is a long standing unconfirmed bug that i can't reproduce.  i'm going to close it NEEDINFO.  if something is going on here, i can't make sense of it without more clues.