[Scons-users] SharedLibrary + SHLIBVERSION and cygwin

[Bill Deegan]

Try changing line 259 of SCons/Tool/__init__.py from:

    elif platform == 'posix' or platform == 'sunos':

to
    elif platform == 'posix' or platform == 'sunos' or platform == 'cygwin':

And see if that fixes it.

-Bill


On Tue, Aug 18, 2015 at 10:23 AM, Paweł Tomulik <ptomulik at meil.pw.edu.pl>
wrote:

> I'm not sure,
>
> AFAIR I only use packages installed via cygwin's "setup.exe" utility. I'm
> not 100% concious of how that stuff works...
>
>
> On 2015-08-18 15:57, Bill Deegan wrote:
>
>> Looks like you are using the mingw tools and not native cygwin
>> compiler?
>>
>> -Bill
>>
>> On Tue, Aug 18, 2015 at 8:58 AM, Paweł Tomulik
>> <ptomulik at meil.pw.edu.pl> wrote:
>>
>> Hi all,
>>>
>>> I just started experimenting with SCons on cygwing trying to port
>>> one of my projects to cygwin. Looks like I'm unlucky with the
>>> SharedLibrary builder or just misunderstand how stuff works.
>>>
>>> At the moment I'm trying to build a minimal project with one
>>> executable and one shared library. The following is build report
>>> from that simple project (attached) on cygwin, SCons 2.3.4, python
>>> 2.7.10:
>>>
>>> ptomulik at mwnotebook:$ scons --tree=all
>>> scons: Reading SConscript files ...
>>> scons: done reading SConscript files.
>>> scons: Building targets ...
>>> g++ -o cygfoo-0-1-2.dll -Wl,-no-undefined -shared -Wl,-Bsymbolic
>>> -Wl,--out-implib,cygfoo-0-1-2.a -Wl,--out-implib=libfoo-0-1-2.dll.a
>>> -Wl,--export-all-symbols -Wl,--enable-auto-import
>>> -Wl,--whole-archive foo.os -Wl,--no-whole-archive -L.
>>> g++ -o main.exe -Wl,-no-undefined main.o -L. -lfoo
>>> /bin/ld: cannot find -lfoo
>>> collect2: error: ld returned 1 exit status
>>> scons: *** [main.exe] Error 1
>>> +-.
>>> +-cygfoo-0-1-2.dll
>>> | +-cygfoo-0-1-2.dll
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-cygfoo-0-1-2.dll
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-foo.cpp
>>> +-foo.hpp
>>> +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-libfoo-0-1-2.dll.a
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-main.cpp
>>> +-main.exe
>>> | +-main.o
>>> | | +-main.cpp
>>> | | +-foo.hpp
>>> | | +-/bin/g++
>>> | +-/bin/g++
>>> | +-cygfoo-0-1-2.dll
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-main.o
>>> | +-main.cpp
>>> | +-foo.hpp
>>> | +-/bin/g++
>>> +-SConstruct
>>> scons: building terminated because of errors.
>>>
>>> This is for SCons 2.3.5:
>>>
>>> ptomulik at mwnotebook:$ scons --tree=all
>>> scons: Reading SConscript files ...
>>> scons: done reading SConscript files.
>>> scons: Building targets ...
>>> g++ -o foo.os -c -I. foo.cpp
>>> g++ -o cygfoo-0-1-2.dll -Wl,-no-undefined -shared -Wl,-Bsymbolic
>>> -Wl,--out-implib,cygfoo-0-1-2.a -Wl,--out-implib=libfoo-0-1-2.dll.a
>>> -Wl,--export-all-symbols -Wl,--enable-auto-import
>>> -Wl,--whole-archive foo.os -Wl,--no-whole-archive -L.
>>> g++ -o main.o -c -I. main.cpp
>>> g++ -o main.exe -Wl,-no-undefined main.o -L. -lfoo
>>> /bin/ld: cannot find -lfoo
>>> collect2: error: ld returned 1 exit status
>>> scons: *** [main.exe] Error 1
>>> +-.
>>> +-cygfoo-0-1-2.dll
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-cygfoo.dll
>>> +-foo.cpp
>>> +-foo.hpp
>>> +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-libfoo-0-1-2.dll.a
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-main.cpp
>>> +-main.exe
>>> | +-main.o
>>> | | +-main.cpp
>>> | | +-foo.hpp
>>> | | +-/bin/g++
>>> | +-/bin/g++
>>> +-main.o
>>> | +-main.cpp
>>> | +-foo.hpp
>>> | +-/bin/g++
>>> +-SConstruct
>>> scons: building terminated because of errors.
>>>
>>> This is for SCons 2.3.6:
>>>
>>> ptomulik at mwnotebook:$ scons --tree=all
>>> scons: Reading SConscript files ...
>>> scons: done reading SConscript files.
>>> scons: Building targets ...
>>> g++ -o foo.os -c -I. foo.cpp
>>> g++ -o cygfoo-0-1-2.dll -Wl,-no-undefined -shared -Wl,-Bsymbolic
>>> -Wl,--out-implib,cygfoo-0-1-2.a -Wl,--out-implib=libfoo-0-1-2.dll.a
>>> -Wl,--export-all-symbols -Wl,--enable-auto-import
>>> -Wl,--whole-archive foo.os -Wl,--no-whole-archive -L.
>>> g++ -o main.o -c -I. main.cpp
>>> g++ -o main.exe -Wl,-no-undefined main.o -L. -lfoo
>>> /bin/ld: cannot find -lfoo
>>> collect2: error: ld returned 1 exit status
>>> scons: *** [main.exe] Error 1
>>> +-.
>>> +-cygfoo-0-1-2.dll
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-cygfoo.dll
>>> +-foo.cpp
>>> +-foo.hpp
>>> +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-libfoo-0-1-2.dll.a
>>> | +-foo.os
>>> | +-foo.cpp
>>> | +-/bin/g++
>>> +-main.cpp
>>> +-main.exe
>>> | +-main.o
>>> | | +-main.cpp
>>> | | +-foo.hpp
>>> | | +-/bin/g++
>>> | +-/bin/g++
>>> +-main.o
>>> | +-main.cpp
>>> | +-foo.hpp
>>> | +-/bin/g++
>>> +-SConstruct
>>> scons: building terminated because of errors.
>>>
>>> Could someone help me pls? What is the proper way to write a
>>> portable SConstruct file, such that the attached project could build
>>> on Most platforms? Do I need a versioned shared libs at all on
>>> cygwin? It seems like the SONAME stuff does not apply here?
>>>
>>> --
>>> Paweł Tomulik
>>>
>>> _______________________________________________
>>> Scons-users mailing list
>>> Scons-users at scons.org
>>> https://pairlist4.pair.net/mailman/listinfo/scons-users [1]
>>>
>>
>>
>>
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