win32: let realpath(3) work on flaky filesystems

Some filesystems don't support the feature required to resolve
symlinks for realpath(3).

In such cases just carry on without resolving symlinks.  This is
a trade-off between correctness and convenience.

Adds 16 bytes.

(GitHub issue #389)

1 files changed, 3 insertions, 0 deletions

diff --git a/win32/mingw.c b/win32/mingw.c
index 093e795ac..eef3ab5d3 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -1561,6 +1561,9 @@ static char *resolve_symlinks(char *path)
                 if (status != 0 && status < MAX_PATH) {
                         ptr = normalize_ntpathA(path);
                         goto end;
+                } else if (err_win_to_posix() == ENOSYS) {
+                        ptr = xstrdup(path);
+                        goto end;
                 }
         }