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

[Satish Balay]

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