* [dpdk-dev] Unsupported --no-as-needed flag
@ 2015-06-12 10:55 Tom Barbette
2015-06-12 11:22 ` Gonzalez Monroy, Sergio
0 siblings, 1 reply; 3+ messages in thread
From: Tom Barbette @ 2015-06-12 10:55 UTC (permalink / raw)
To: dev
Hi list,
Patch http://dpdk.org/dev/patchwork/patch/1056/ introduced the
--no-as-needed flag, however on debian, and another ubuntu host, neither
g++ 4.8 or 4.9 know this flag and leads to the error :
g++: error: unrecognized command line option ‘--no-as-needed’
Maybe this comes from a bad inclusion of the dpdk *mk files from my part (
https://github.com/MappaM/click/blob/master/userlevel/dpdk.mk )? But
removing the line "--no-as-needed" mk/exec-env/linuxapp/rte.vars.mk solve
my problem.
Thanks for the help,
*Tom Barbette*
University of Liege
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] Unsupported --no-as-needed flag
2015-06-12 10:55 [dpdk-dev] Unsupported --no-as-needed flag Tom Barbette
@ 2015-06-12 11:22 ` Gonzalez Monroy, Sergio
2015-06-12 13:06 ` Tom Barbette
0 siblings, 1 reply; 3+ messages in thread
From: Gonzalez Monroy, Sergio @ 2015-06-12 11:22 UTC (permalink / raw)
To: Tom Barbette; +Cc: dev
On 12/06/2015 11:55, Tom Barbette wrote:
> Hi list,
>
> Patch http://dpdk.org/dev/patchwork/patch/1056/ introduced the
> --no-as-needed flag, however on debian, and another ubuntu host, neither
> g++ 4.8 or 4.9 know this flag and leads to the error :
>
> g++: error: unrecognized command line option ‘--no-as-needed’
That is a correct error as it is not GCC but an LD flag.
To pass those flags through GCC you have to prefix them with -Wl, so for
this case it would be:
-Wl,--no-as-needed
DPDK build framework does the prefixing automatically when it links
using GCC instead
of directly using LD.
Sergio
> Maybe this comes from a bad inclusion of the dpdk *mk files from my part (
> https://github.com/MappaM/click/blob/master/userlevel/dpdk.mk )? But
> removing the line "--no-as-needed" mk/exec-env/linuxapp/rte.vars.mk solve
> my problem.
>
> Thanks for the help,
>
>
> *Tom Barbette*
> University of Liege
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [dpdk-dev] Unsupported --no-as-needed flag
2015-06-12 11:22 ` Gonzalez Monroy, Sergio
@ 2015-06-12 13:06 ` Tom Barbette
0 siblings, 0 replies; 3+ messages in thread
From: Tom Barbette @ 2015-06-12 13:06 UTC (permalink / raw)
To: Gonzalez Monroy, Sergio; +Cc: dev
This is indeed from my integration (don't want all those EAL stuff), I
probably removed too much. it works by adding those two lines in my DPDK
makefile before going back to my normal makefile :
include $(RTE_SDK)/mk/internal/rte.build-pre.mk
override LDFLAGS := $(call linkerprefix,$(LDFLAGS))
Thanks for the help,
*Tom Barbette*
^ permalink raw reply [flat|nested] 3+ messages in thread
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