[Scons-users] MSVC linker always relink with shared library?

[Bill Deegan]

You can also do this:

env.SharedLibrary('test', 'test1.c', no_import_lib=1)

On Tue, Aug 14, 2018 at 7:35 AM, Daniel Moody <dmoody256 at gmail.com> wrote:

> Thanks Thomas, that flag should be fine.
>
> On Tue, Aug 14, 2018, 9:23 AM Thomas Berg <merlin66b at gmail.com> wrote:
>
>> SCons does not parse your code and check whether you are exporting any
>> symbols. But there is a flag you can set to tell scons not to expect a .lib
>> file to be generated:
>>
>> env['no_import_lib'] = 1
>>
>> I think this stops the rebuilding in your case.
>>
>> Hope this helps,
>> Thomas
>>
>>
>> On Tue, Aug 14, 2018 at 3:55 PM Daniel Moody <dmoody256 at gmail.com> wrote:
>>
>>> Thanks, scons told me it wasn't building the import lib, this was
>>> because I wasn't exporting any symbols with my example. Should scons know
>>> about this case?
>>>
>>> On Tue, Aug 14, 2018, 6:11 AM Gary Oberbrunner <garyo at oberbrunner.com>
>>> wrote:
>>>
>>>> Hi Daniel; can you try with 'scons --debug=explain' ? That might show
>>>> why it thinks it needs to be rebuilt.
>>>>
>>>> On Tue, Aug 14, 2018 at 12:59 AM Daniel Moody <dmoody256 at gmail.com>
>>>> wrote:
>>>>
>>>>> Anyone else seeing this with latest release (3.0.1)? It doesn't
>>>>> re-link with Program when building an executable.
>>>>>
>>>>> Here is my SConstruct:
>>>>>
>>>>> env = Environment()
>>>>> env.SharedLibrary('test', 'test1.c')
>>>>>
>>>>> Here is test1.c:
>>>>>
>>>>> int foo(){ return 0; }
>>>>>
>>>>> When I run this the first time this is my output:
>>>>>
>>>>> C:\Users\Daniel\workspace>scons -f SConstruct.py
>>>>> scons: Reading SConscript files ...
>>>>> scons: done reading SConscript files.
>>>>> scons: Building targets ...
>>>>> cl /Fotest1.obj /c test1.c /nologo
>>>>> test1.c
>>>>> link /nologo /dll /out:test.dll /implib:test.lib test1.obj
>>>>> scons: done building targets.
>>>>>
>>>>> If I run the same command again without changing anything, I get the
>>>>> link again:
>>>>>
>>>>> C:\Users\Daniel\workspace>scons -f SConstruct.py
>>>>> scons: Reading SConscript files ...
>>>>> scons: done reading SConscript files.
>>>>> scons: Building targets ...
>>>>> link /nologo /dll /out:test.dll /implib:test.lib test1.obj
>>>>> scons: done building targets.
>>>>>
>>>>> Subsequent runs of the command produce the link again.
>>>>>
>>>>> I have Visual Studio 2015 installed.
>>>>>
>>>>> Scons and Python:
>>>>> C:\Users\Daniel\workspace>scons -v
>>>>> SCons by Steven Knight et al.:
>>>>>         script: v3.0.1.74b2c53bc42290e911b334a6b44f187da698a668,
>>>>> 2017/11/14 13:16:53, by bdbaddog on hpmicrodog
>>>>>         engine: v3.0.1.74b2c53bc42290e911b334a6b44f187da698a668,
>>>>> 2017/11/14 13:16:53, by bdbaddog on hpmicrodog
>>>>>         engine path: ['c:\\python36\\lib\\site-
>>>>> packages\\scons-3.0.1\\SCons']
>>>>> Copyright (c) 2001 - 2017 The SCons Foundation
>>>>>
>>>>> C:\Users\Daniel\workspace>python --version
>>>>> Python 3.6.5
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Scons-users mailing list
>>>>> Scons-users at scons.org
>>>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>>>
>>>>
>>>>
>>>> --
>>>> Gary
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>
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