[petsc-dev] A couple of other notes from the Cygwin64 install

[Aron Ahmadia]

Also, I think we're using different build configurations, I don't produce a
libpetsc.dll (that looks suspiciously like a libpetsc.so file with the
wrong name).  You should have a:

lib/libpetsc.dll.a

and

cygpetsc.dll

The first is the "import library" for the DLL, which contains the stubs for
the actual symbols.

I'm on CYGWIN_NT-6.2 1.7.25(0.270/5/3) 2013-08-31 20:37 x86_64 Cygwin using
gcc4.8.1-3 from cygwin.

A


On Wed, Sep 25, 2013 at 6:27 PM, Aron Ahmadia <aron at ahmadia.net> wrote:

> What does cygcheck.exe have to say about it?
>
> A
>
>
> On Wed, Sep 25, 2013 at 6:05 PM, Satish Balay <balay at mcs.anl.gov> wrote:
>
>> On Wed, 25 Sep 2013, Satish Balay wrote:
>>
>> > On Wed, 25 Sep 2013, Aron Ahmadia wrote:
>> >
>> > > The Fortran test failed, I'm not going to bother looking into it.
>> > >
>> > > CMake is happily dumping the output library, cygpetsc.dll, in
>> > > $PETSC_DIR/$PETSC_ARCH
>> > >
>> > > According to the wizards at Microsoft/Cygwin, DLLs belong in bin/, so
>> they
>> > > end up on the PATH when somebody tries to do an import.
>> >
>> > I guess one can do 'export PATH=$PATH:$PETSC_DIR/PETSC_ARCH/lib' to get
>> the dll
>> >
>> > But somehow It doesnt' work for me.
>> >
>> > Also - I'm not sure this [dll] change should go into petsc-3.4. Since
>> > --with-shared-libraries=1 is the configure default - now petsc-3.4
>> > users will get a dll - that requies a PATH to be set [for it work]
>> >
>> > Also - how is this supporsed to work? I set PATH - but still get
>> errors..
>> >
>> > balay at msnehalem2 ~/petsc.test/src/ksp/ksp/examples/tutorials
>> > $ echo $PATH
>> > /home/balay/petsc.test/arch-gnu-ini/lib:/bin:/usr/bin
>> >
>> > balay at msnehalem2 ~/petsc.test/src/ksp/ksp/examples/tutorials
>> > $ ls -l /home/balay/petsc.test/arch-gnu-ini/lib
>> > total 145820
>> > -rwxr-xr-x  1 balay None 149317546 Sep 25 16:38 libpetsc.dll
>> > drwxr-xr-x+ 1 balay None         0 Sep 25 16:34 modules
>> > drwxr-xr-x+ 1 balay None         0 Sep 25 16:34 pkgconfig
>> >
>> > balay at msnehalem2 ~/petsc.test/src/ksp/ksp/examples/tutorials
>> > $ ./ex2
>> > /home/balay/petsc.test/src/ksp/ksp/examples/tutorials/ex2.exe: error
>> while loading shared libraries: libpetsc.dll: cannot open shared object
>> file: No such file or directory
>> >
>>
>> ldd can find it though...
>>
>> balay at msnehalem2 ~/petsc.test/src/ksp/ksp/examples/tutorials
>> $ ldd ex2.exe
>>         ntdll.dll => /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x770b0000)
>>         kernel32.dll => /cygdrive/c/Windows/syswow64/kernel32.dll
>> (0x74e00000)
>>         KERNELBASE.dll => /cygdrive/c/Windows/syswow64/KERNELBASE.dll
>> (0x74c90000)
>>         cygwin1.dll => /usr/bin/cygwin1.dll (0x61000000)
>>         libpetsc.dll =>
>> /home/balay/petsc.test/arch-gnu-ini/lib/libpetsc.dll (0x6b1c0000)
>>
>>
>> Satish
>>
>
>
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