Bug 14743

Summary:	clock_gettime et al from -lrt always bring in libpthread
Product:	glibc	Reporter:	Roland McGrath <roland>
Component:	libc	Assignee:	Roland McGrath <roland>
Status:	RESOLVED FIXED
Severity:	normal	CC:	ajax, drepper.fsp, jwakely.gcc
Priority:	P2	Flags:	fweimer: security-
Version:	2.17
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:

Description Roland McGrath 2012-10-19 18:36:40 UTC

Just using clock_gettime in a dynamically linked program requires -lrt.
librt.so depends on libpthread.so, so such programs wind up loading libpthread even if they have no need for it.  This enables libstdc++ locking code and the like, slowing down single-threaded programs that only wanted clock_* calls.

Comment 1 Roland McGrath 2012-10-24 21:53:14 UTC

Implemented.  Cannot be backported.

Comment 2 Andreas Schwab 2013-01-15 14:34:56 UTC

*** Bug 14304 has been marked as a duplicate of this bug. ***