Merge branch 'mingw-fixes' into 'master'

MinGW build fixes

See merge request sane-project/backends!483

backend/dll.c

@@ -142,6 +142,10 @@ posix_dlsym (void *handle, const char *func)
 # define PATH_MAX       1024
 #endif
 
+#ifndef NAME_MAX
+# define NAME_MAX FILENAME_MAX
+#endif
+
 #if defined(_WIN32) || defined(HAVE_OS2_H)
 # define DIR_SEP        ";"
 #else

sanei/sanei_init_debug.c

@@ -118,7 +118,7 @@ is_socket (int fd)
 
 #if defined(S_ISSOCK)
   return S_ISSOCK(sbuf.st_mode);
-#elif defined (S_IFMT) && defined(S_IFMT)
+#elif defined (S_IFMT) && defined(S_IFSOCK)
   return (sbuf.st_mode & S_IFMT) == S_IFSOCK;
 #else
   return 0;
@@ -133,6 +133,7 @@ sanei_debug_msg
 
   if (max_level >= level)
     {
+#if defined(LOG_DEBUG)
       if (is_socket(fileno(stderr)))
 	{
 	  msg = (char *)malloc (sizeof(char) * (strlen(be) + strlen(fmt) + 4));
@@ -149,6 +150,7 @@ sanei_debug_msg
 	    }
 	}
       else
+#endif
 	{
           struct timeval tv;
           struct tm *t;