Re: [PATCH RESEND] tools/mm: fix undefined reference to pthread_once

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Hi,

On 2023/8/31 10:25, Matthew Wilcox wrote:
> On Thu, Aug 31, 2023 at 09:13:24AM +0800, Xie XiuQi wrote:
>> Hi,
>>
>> On 2023/8/28 20:58, Matthew Wilcox wrote:
>>> On Mon, Aug 28, 2023 at 08:21:57PM +0800, Xie XiuQi wrote:
>>>> diff --git a/tools/mm/Makefile b/tools/mm/Makefile
>>>> index 6c1da51f4177..9997b2e401ae 100644
>>>> --- a/tools/mm/Makefile
>>>> +++ b/tools/mm/Makefile
>>>> @@ -9,7 +9,7 @@ LIB_DIR = ../lib/api
>>>>  LIBS = $(LIB_DIR)/libapi.a
>>>>  
>>>>  CFLAGS += -Wall -Wextra -I../lib/
>>>> -LDFLAGS += $(LIBS)
>>>> +LDFLAGS += $(LIBS) -lpthread
>>>
>>> Is this the right fix?  I'm pretty sure you're suppose to use -pthread
>>> in CFLAGS in case there are other things the compiler/linker/whatever
>>> need.
>>>
>>
>> Thanks for your comment. I'll fix it and send v2.
> 
> You added it to LDFLAGS, not CFLAGS.

Sorry, it's my fault. I'll add it to CFALGS:

  CFLAGS += -Wall -Wextra -I../lib/ -pthread

> 
>>> '-pthread'
>>>      Define additional macros required for using the POSIX threads
>>>      library.  You should use this option consistently for both
>                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>      compilation and linking.  This option is supported on GNU/Linux
>          ^^^^^^^^^^^^^^^^^^^^^^^
>>>      targets, most other Unix derivatives, and also on x86 Cygwin and
>>>      MinGW targets.
>>>
>>
>>





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