Binary wrappers not working on MinGW/MSYS

[Thorsten Dahlheimer]

Hello,

the binary wrapper executables created on MinGW always
exit with non-zero exit code instead of executing the
wrapped executable. (This is true with both CVS trunk
and the 1.5 branch.) The error is in the following line
of the wrapper's C source:

  execv("$SHELL",(char const **)newargz);

Here $SHELL contains an MSYS POSIX-style path, but the
binary wrapper will be a native Windows executable, and
the shell won't be found. So when building on MinGW/MSYS,
libtool should convert the contents of $SHELL to the
corresponding Win32 path before putting it into the wrapper
source.

Best Regards,
Thorsten