_SH_DENYWR undeclared when building with MinGW-w64

[brechtsanders]

When building version 0.9.2 on Windows with MinGW-w64 GCC the build failed with the following error.

sail-0.9.2/src/sail-common/utils.c:721:38: error: '_SH_DENYWR' undeclared (first use in this function)
  721 |     FILE *f = _wfsopen(wpath, L"rb", _SH_DENYWR);
      |                                      ^~~~~~~~~~

When adding the following line at the top of src/sail-common/utils.c the build succeeds:

#include <share.h>

I haven't checked if this is an issue on other platforms or if share.h also exists on all platforms where sail normally builds.

[HappySeaFox]

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