Make directory name comparisons on Win32 case insensitive.

This method will not catch all different ways since the locale
handling in NTFS doesn't provide an easy way to do that, but it
will hopefully solve the most common cases causing startup
problems when the backend is found in the system PATH.

Attempts to fix bug #4694.

diff --git a/src/port/path.c b/src/port/path.c
index 708306d67bab8fa4ee649f428e4c4734d2559ac7..93cffa3c6462263a305c7bb8a2d9b57726c6069b 100644 (file)
--- a/src/port/path.c
+++ b/src/port/path.c
@@ -427,7 +427,12 @@ dir_strcmp(const char *s1, const char *s2)
 {
        while (*s1 && *s2)
        {
+#ifndef WIN32
                if (*s1 != *s2 &&
+#else
+                       /* On windows, paths are case-insensitive */
+               if (pg_tolower(*s1) != pg_tolower(*s2) &&
+#endif
                        !(IS_DIR_SEP(*s1) && IS_DIR_SEP(*s2)))
                        return (int) *s1 - (int) *s2;
                s1++, s2++;