[Libreoffice] gbuild circular dependencies

[Peter Foley]

Hi,

While converting connectivity to gbuild I seem to have created some
circular dependencies.

make[1]: Circular /home/peter/libreoffice/workdir/unxlngx6.pro/ExternalHeaders/Library/libsdbc2lo.so <- /home/peter/libreoffice/workdir/unxlngx6.pro/Headers/Library/libdbtoolslo.so dependency dropped.
make[1]: Circular /home/peter/libreoffice/workdir/unxlngx6.pro/ExternalHeaders/Library/libdbpool2lo.so <- /home/peter/libreoffice/workdir/unxlngx6.pro/Headers/Library/libdbtoolslo.so dependency dropped.
make[1]: Circular /home/peter/libreoffice/workdir/unxlngx6.pro/ExternalHeaders/Library/libcalclo.so <- /home/peter/libreoffice/workdir/unxlngx6.pro/Headers/Library/libdbtoolslo.so dependency dropped.
make[1]: Circular /home/peter/libreoffice/workdir/unxlngx6.pro/Package/connectivity_inc <- /home/peter/libreoffice/workdir/unxlngx6.pro/ExternalHeaders/Library/libodbcbaselo.so dependency dropped.
make[1]: Circular /home/peter/libreoffice/workdir/unxlngx6.pro/Package/connectivity_inc <- /home/peter/libreoffice/workdir/unxlngx6.pro/ExternalHeaders/Library/libodbclo.so dependency dropped.

I haven't been able to figure out what is causing these.
I've pushed my WIP conversion to feature/gbuild_conversions and would appreciate it if someone took a look.

Thanks,

Peter