Ios build call a package "curl" (not the exe).

Hi

I updated my master yesterday, and have build successfully on mac (except for a small break pad 
problem).

But when I build for iOS (tested with “make clean; make -j 1”) I get a strange message:

[PKG] UIConfig/modules/dbtdata_generated
[GPK] desktop_unopackages_install
[PKG] curl
/Volumes/LIBREOFFICE/ios/core/solenv/gbuild/Package.mk:81: *** Something depends on package curl 
which does not exist..  Stop.
make[1]: *** Waiting for unfinished jobs....


Does anybody have an idea, why gbuild believes we have a package called “curl” ? 

I have curl installed as such, so that is not the problem.

thanks in advance for a pointer
rgds
jan I.