Cannot build master with VS 2017

Hi all,

I need help with building. I get the error

[build PAT] libmspub
/usr/bin/sh: ./configure: Kann die Binärdatei nicht ausführen: Exec 
format error
1 out of 1 hunk FAILED -- saving rejects to file 
src/lib/MSPUBContentChunkType.h.rej
Patch FAILED: C:/LO_build/core/external/libmspub/ubsan.patch
make[1]: *** 
[C:/LO_build/core/external/libcdr/ExternalProject_libcdr.mk:27: 
C:/LO_build/core/workdir/ExternalProject/libcdr/build] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: *** [C:/LO_build/core/solenv/gbuild/UnpackedTarball.mk:172: 
C:/LO_build/core/workdir/UnpackedTarball/libmspub.done] Error 1

Followed by a lot of "checking" and similar messag:
configure: error: cannot run /bin/sh ./config.sub
make[1]: *** 
[C:/LO_build/core/external/libqxp/ExternalProject_libqxp.mk:25: 
C:/LO_build/core/workdir/ExternalProject/libqxp/build] Error 1
and final message
configure: error: cannot run /bin/sh ./config.sub
make[1]: *** 
[C:/LO_build/core/external/libzmf/ExternalProject_libzmf.mk:27: 
C:/LO_build/core/workdir/ExternalProject/libzmf/build] Error 1
make: *** [Makefile:276: build] Error 2

My configure is
--with-external-tar=/cygdrive/c/LO_build/externalsrc
--with-junit=/cygdrive/c/cygwin64/junit/junit-4.10.jar
--with-ant-home=/cygdrive/c/cygwin64/ant199
--enable-pch
--disable-ccache
--with-visual-studio=2017
--without-fonts
--with-help
--enable-64-bit
--enable-debug
--with-jdk-home=/cygdrive/c/Programme/Java/jdk-9.0.1

Last successful build had been in December.

Kind regards
Regina