jemalloc-4.0.0 on el5 and el6: undefined reference to `clock_gettime'

Jason Evans jasone at
Fri Aug 21 09:39:11 PDT 2015

On Aug 20, 2015, at 12:36 AM, Daniel Micay <danielmicay at> wrote:
> On 20/08/15 03:34 AM, Ingvar Hagelund wrote:
>> When compiling jemalloc-4.0.0 on rhel5 or rhel6, the linker stops with
>> "undefined reference to `clock_gettime'"
>> Adding "-lrt" to LDFLAGS gets around this, but perhaps it could have
>> been picked up automatically?
>> [...]
> Yeah, the issue would be that clock_gettime was moved to libc in newer
> versions of libc so -lrt wasn't added for the tests.

This issue is now being tracked at:


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