Need help buiding bfd shared library

[Jan Beulich]

On 04.08.2022 11:45, Potharla, Rupesh wrote:
>> From: Jan Beulich <jbeulich@suse.com>
>> Sent: Thursday, August 4, 2022 12:17 PM
>>
>> On 03.08.2022 20:59, Potharla, Rupesh wrote:
>>>> On 03.08.2022 08:49, Potharla, Rupesh wrote:
>>>>>> On 03.08.2022 08:09, Potharla, Rupesh via Binutils wrote:
>>>>>>> I am working on building bfd shared library for my code changes. I
>>>>>>> tried with
>>>>>> "configure --enable-shared=bfd" but BFD is creating static library
>>>>>> only even with -enable-shared option .  Did I miss something ? Can
>>>>>> someone help me with the instructions to build bfd shared library?
>>>>>>
>>>>>> Did you try --enable-shared without "=bfd"? So far I wasn't aware
>>>>>> of that form as an option, and at least a quick inspection of the
>>>>>> configure script also doesn't suggest that form might exist. But I
>>>>>> may be
>>>> entirely wrong ...
>>>>>
>>>>> I tried that option as well and tried with --enable-host-shared
>>>>> combination
>>>> also but no luck.
>>>>
>>>> You may want to inspect configure output then. Here in bfd/config.log
>>>> I see
>>>>
>>>> configure:8674: checking whether the gcc -std=gnu99 linker
>>>> (/usr/lib/gcc/.../ld) supports shared libraries
>>>> configure:9745: result: yes
>>>> ...
>>>> configure:11365: checking if libtool supports shared libraries
>>>> configure:11367: result: yes
>>>> configure:11370: checking whether to build shared libraries
>>>> configure:11391: result: yes
>>>> configure:11394: checking whether to build static libraries
>>>> configure:11398: result: yes
>>>>
>>>> I would guess one of these is failing for you, at which point you'd
>>>> want to figure out why that is.
>>>
>>> None of the above is failing for me. I looked at the config.log file and tried
>> the combination of different options none of them is working. In fact, I don't
>> see a target for libbfd.so in the Makefile.
>>
>> Look for a libbfd.la target. There's libtool involved here, and I think that's the
>> rule where the .so linking happens (at the same time as the creation of
>> libbfd.a). IOW I suppose all depends on the flags passed to libtool ...
>>
>>> configure:11283: checking whether stripping libraries is possible
>>> configure:11288: result: yes
>>> configure:11323: checking if libtool supports shared libraries
>>> configure:11325: result: yes
>>> configure:11328: checking whether to build shared libraries
>>> configure:11349: result: yes
>>> configure:11352: checking whether to build static libraries
>>> configure:11356: result: yes
>>> configure:8563: checking for dlfcn.h
>>> configure:8563: result: yes
>>>
>>> Just out of curiosity is the --enable-shared option really working for others?
>>
>> Yes (on Linux; on Cygwin the answer would be "no").
> 
> "./configure --enable-shared=bfd --enable-host-shared && make " is the command I am running for this. I ran it on multiple Linux machines but did not see libbfd.so.  
> Can you confirm the command ?

No, I cannot. As said previously, all I ever use is --enable-shared
(without any "=bfd").

Jan