Merge pull request git-for-windows#1 from dscho/git-for-windows

Assorted fixes for Git for windows

winsup/cygwin/DevDocs/how-to-debug-cygwin.txt

@@ -126,3 +126,9 @@ set CYGWIN_DEBUG=cat.exe:gdb.exe
    program will crash, probably in small_printf.  At that point, a 'bt'
    command should show you the offending call to strace_printf with the
    improper format string.
+
+9. Debug output without strace
+
+   If you cannot use gdb, or if the program behaves differently using strace
+   for whatever reason, you can still use the small_printf() function to
+   output debugging messages directly to stderr.

winsup/cygwin/msys2_path_conv.cc

@@ -399,7 +399,7 @@ path_type find_path_start_and_type(const char** src, int recurse, const char* en
     }
     it = *src;
 
-    while (!isalnum(*it) && *it != '/' && *it != '\\' && *it != ':' && *it != '-' && *it != '.') {
+    while (!isalnum(*it) && !(0x80 & *it) && *it != '/' && *it != '\\' && *it != ':' && *it != '-' && *it != '.') {
         recurse = true;
         it = ++*src;
         if (it == end || *it == '\0') return NONE;

winsup/cygwin/strfuncs.cc

@@ -1146,7 +1146,11 @@ _sys_mbstowcs (mbtowc_p f_mbtowc, wchar_t *dst, size_t dlen, const char *src,
 	     to store them in a symmetric way. */
 	  bytes = 1;
 	  if (dst)
+#ifdef STRICTLY_7BIT_ASCII
 	    *ptr = L'\xf000' | *pmbs;
+#else
+	    *ptr = *pmbs;
+#endif
 	  memset (&ps, 0, sizeof ps);
 	}