Merge branch 'ps-devel-fix-microtek-va_list-001' into 'master'

Fix uclibc compile (include stdarg.h for va_list/va_start/va_end), fix NDEBUG compile (PDBG/pixma_dbg)

See merge request sane-project/backends!638

backend/microtek.c

@@ -57,6 +57,7 @@
 
 #include "../include/sane/config.h"
 
+#include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>

backend/pixma/pixma_common.c

@@ -968,16 +968,16 @@ pixma_read_image (pixma_t * s, void *buf, unsigned len)
               s->last_source = s->param->source;
               if ((s->cur_image_size != s->param->image_size) && !s->param->mode_jpeg)
                 {
-                  pixma_dbg (1, "WARNING:image size mismatches\n");
-                  pixma_dbg (1,
+                  PDBG (pixma_dbg (1, "WARNING:image size mismatches\n"));
+                  PDBG (pixma_dbg (1,
                        "    %"PRIu64" expected (%d lines) but %"PRIu64" received (%"PRIu64" lines)\n",
                        s->param->image_size, s->param->h,
                        s->cur_image_size,
-                       s->cur_image_size / s->param->line_size);
+                       s->cur_image_size / s->param->line_size));
                   if ((s->cur_image_size % s->param->line_size) != 0)
                     {
-                      pixma_dbg (1,
-                     "BUG:received data not multiple of line_size\n");
+                      PDBG (pixma_dbg (1,
+                           "BUG:received data not multiple of line_size\n"));
                     }
                 }
               if ((s->cur_image_size < s->param->image_size) && !s->param->mode_jpeg)

backend/sm3600-scanutil.c

@@ -43,6 +43,7 @@ Userspace scan tool for the Microtek 3600 scanner
 
 ====================================================================== */
 
+#include <stdarg.h>
 #include <unistd.h>
 #include "sm3600-scantool.h"