+ {
+#if defined __CYGWIN__
+ /* cygwin-1.5.13 (2005-03-01) or newer would also allow a Linux-like
+ implementation: readlink of "/proc/self/exe". But using the
+ result of the Win32 system call is simpler and is consistent with the
+ code in relocatable.c. */
+ /* On Cygwin, we need to convert paths coming from Win32 system calls
+ to the Unix-like slashified notation. */
+ static char location_as_posix_path[2 * MAX_PATH];
+ /* There's no error return defined for cygwin_conv_to_posix_path.
+ See cygwin-api/func-cygwin-conv-to-posix-path.html.
+ Does it overflow the buffer of expected size MAX_PATH or does it
+ truncate the path? I don't know. Let's catch both. */
+ cygwin_conv_to_posix_path (location, location_as_posix_path);
+ location_as_posix_path[MAX_PATH - 1] = '\0';
+ if (strlen (location_as_posix_path) >= MAX_PATH - 1)
+ /* A sign of buffer overflow or path truncation. */
+ return NULL;
+ /* Call canonicalize_file_name, because Cygwin supports symbolic links. */
+ return canonicalize_file_name (location_as_posix_path);
+#else
+ return xstrdup (location);
+#endif
+ }
+#else /* Unix && !Cygwin */