building Julia, cross compile using WSL

[mmus]

I'm trying to build a cross compiled version for Windows using  Windows Subsystem For Ubuntu

$ git status

On branch master

Your branch is up-to-date with 'origin/master'.

commit 683945155c64b8b68bf03d768745d650d4df142a

$ cat Make.user

override XC_HOST = x86_64-w64-mingw32

I get the following wine errors?

x86_64-w64-mingw32-ar: creating libspqr.a

a - spqr_rmap.o

a - SuiteSparseQR_C.o

a - SuiteSparseQR_expert.o

a - spqr_parallel.o

a - spqr_kernel.o

a - spqr_analyze.o

a - spqr_assemble.o

a - spqr_cpack.o

a - spqr_csize.o

a - spqr_fcsize.o

a - spqr_debug.o

a - spqr_front.o

a - spqr_factorize.o

a - spqr_freenum.o

a - spqr_freesym.o

a - spqr_freefac.o

a - spqr_fsize.o

a - spqr_maxcolnorm.o

a - spqr_rconvert.o

a - spqr_rcount.o

a - spqr_rhpack.o

a - spqr_rsolve.o

a - spqr_stranspose1.o

a - spqr_stranspose2.o

a - spqr_hpinv.o

a - spqr_1fixed.o

a - spqr_1colamd.o

a - SuiteSparseQR.o

a - spqr_1factor.o

a - spqr_cumsum.o

a - spqr_shift.o

a - spqr_happly.o

a - spqr_panel.o

a - spqr_happly_work.o

a - SuiteSparseQR_qmult.o

a - spqr_trapezoidal.o

a - spqr_larftb.o

a - spqr_append.o

a - spqr_type.o

a - spqr_tol.o

    PERL base/pcre_h.jl

    PERL base/errno_h.jl

    CC usr/bin/libccalltest.dll

    PERL base/fenv_constants.jl

    PERL base/file_constants.jl

    PERL base/uv_constants.jl

    PERL base/build_h.jl.phony

    CC src/support/hashing.o

    PERL base/version_git.jl.phony

    CC src/support/timefuncs.o

    CC src/support/ptrhash.o

    CC src/support/operators.o

    CC src/support/utf8.o

    CC src/support/ios.o

    CC src/support/htable.o

    CC src/support/bitvector.o

    CC src/support/int2str.o

timefuncs.c: In function 'jl_gettimeofday':

timefuncs.c:35:20: warning: implicit declaration of function '_ftime64_s' [-Wimplicit-function-declaration]

     errno_t code = _ftime64_s(&tb);

                    ^~~~~~~~~~

    CC src/support/libsupportinit.o

    CC src/support/arraylist.o

    CC src/support/strtod.o

    CC src/support/asprintf.o

    CC src/support/wsasocketpair.o

    CC src/support/strptime.o

    CC src/support/_setjmp.win64.o

    CC src/support/_longjmp.win64.o

    LINK src/support/libsupport.a

    CC src/flisp/flisp.o

    CC src/flisp/builtins.o

    CC src/flisp/string.o

    CC src/flisp/equalhash.o

    CC src/flisp/table.o

    CC src/flisp/iostream.o

    CC src/flisp/julia_extensions.o

    CC src/flisp/flmain.o

    LINK src/flisp/libflisp.a

    LINK src/flisp/flisp

    FLISP src/julia_flisp.boot

/usr/bin/wine: 1: /usr/bin/wine: Syntax error: word unexpected (expecting ")")

/usr/bin/wine: 1: /usr/bin/wine: Syntax error: word unexpected (expecting ")")

/usr/bin/wine: 1: /usr/bin/wine: Syntax error: word unexpected (expecting ")")

/usr/bin/wine: 1: /usr/bin/wine: Syntax error: word unexpected (expecting ")")

make[1]: *** [julia_flisp.boot] Error 2