GMP-6.1.2: TESTS_ENVIRONMENT=wine breaks "make check"

[Keith Marshall]

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Having (apparently) successfully built GMP-6.1.2 for mingw32 host, using 
self-built GCC-6.3.0 cross-compiler, hosted on LinuxMint-Debian:

$ uname -a
Linux ... 3.11-2-amd64 #1 SMP Debian 3.11.8-1 (2013-11-13) x86_64 GNU/Linux

$ mingw32-gcc --version
mingw32-gcc (GCC) 6.3.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS 
FOR A PARTICULAR PURPOSE.

Configure runs successfully (log attached), as does subsequent make; 
however, ultimately running (as instructed by configure):

$ make check TESTS_ENVIRONMENT=wine

dies thus:

make  check-TESTS
make[4]: Entering directory `/home/keith/src/mingw/gcc-build/gmp-6.1.2-shared/tests'
make[5]: Entering directory `/home/keith/src/mingw/gcc-build/gmp-6.1.2-shared/tests'
wine: Bad EXE format for Z:\bin\bash..
make[5]: *** [t-bswap.log] Error 193

Omitting the "TESTS_ENVIRONMENT=wine" assignment, and relying on Linux 
miscellaneous binary support to DTRT, allows the test-suite to run, with 
one reported FAIL (t-scanf.exe), for which I'll submit a separate report.

- -- 
Regards,
Keith.

Public key available from keys.gnupg.net
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