master fb5e43040fe: Port file-name-case-insensitive-p to Haiku

[Po Lu]

branch: master
commit fb5e43040fed987418e8855c677aa44e36f67e33
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Port file-name-case-insensitive-p to Haiku
    
    * src/fileio.c (file_name_case_insensitive_err): Don't return
    errno upon failure, just 1, since errno is not used in the sole
    caller.
---
 src/fileio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/fileio.c b/src/fileio.c
index 0a967a6631f..663d89b9dfc 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -2525,7 +2525,7 @@ internal_delete_file (Lisp_Object filename)
 #endif
 
 /* Return -1 if FILE is a case-insensitive file name, 0 if not,
-   and a positive errno value if the result cannot be determined.  */
+   and 1 if the result cannot be determined.  */
 
 static int
 file_name_case_insensitive_err (Lisp_Object file)
@@ -2559,7 +2559,7 @@ file_name_case_insensitive_err (Lisp_Object file)
     return - (res == 0);
 # endif
   if (errno != EINVAL)
-    return errno;
+    return 1;
 #endif
 
 #if defined CYGWIN || defined DOS_NT