Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/

jdatasrc-tj.c

Index: jdatasrc-tj.c
diff --git a/jdatasrc-tj.c b/jdatasrc-tj.c
index 259c6de922326dd8dd8137c37c0326983e619201..0b99ee18b1fd703fc5c60ddeff6c8c1dce7dc5e9 100644
--- a/jdatasrc-tj.c
+++ b/jdatasrc-tj.c
@@ -6,7 +6,8 @@
  * Modified 2009-2011 by Guido Vollbeding.
  * libjpeg-turbo Modifications:
  * Copyright (C) 2011, D. R. Commander.
- * For conditions of distribution and use, see the accompanying README file.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
  *
  * This file contains decompression data source routines for the case of
  * reading JPEG data from memory or from a file (or any stdio stream).
@@ -105,7 +106,7 @@ fill_mem_input_buffer (j_decompress_ptr cinfo)
 METHODDEF(void)
 skip_input_data (j_decompress_ptr cinfo, long num_bytes)
 {
-  struct jpeg_source_mgr * src = cinfo->src;
+  struct jpeg_source_mgr *src = cinfo->src;
 
   /* Just a dumb implementation for now.  Could use fseek() except
    * it doesn't work on pipes.  Not clear that being smart is worth
@@ -157,21 +158,21 @@ term_source (j_decompress_ptr cinfo)
 
 GLOBAL(void)
 jpeg_mem_src_tj (j_decompress_ptr cinfo,
-	      unsigned char * inbuffer, unsigned long insize)
+                 const unsigned char *inbuffer, unsigned long insize)
 {
-  struct jpeg_source_mgr * src;
+  struct jpeg_source_mgr *src;
 
-  if (inbuffer == NULL || insize == 0)	/* Treat empty input as fatal error */
+  if (inbuffer == NULL || insize == 0)  /* Treat empty input as fatal error */
     ERREXIT(cinfo, JERR_INPUT_EMPTY);
 
   /* The source object is made permanent so that a series of JPEG images
    * can be read from the same buffer by calling jpeg_mem_src only before
    * the first one.
    */
-  if (cinfo->src == NULL) {	/* first time for this JPEG object? */
+  if (cinfo->src == NULL) {     /* first time for this JPEG object? */
     cinfo->src = (struct jpeg_source_mgr *)
       (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				  SIZEOF(struct jpeg_source_mgr));
+                                  sizeof(struct jpeg_source_mgr));
   }
 
   src = cinfo->src;
@@ -181,5 +182,5 @@ jpeg_mem_src_tj (j_decompress_ptr cinfo,
   src->resync_to_restart = jpeg_resync_to_restart; /* use default method */
   src->term_source = term_source;
   src->bytes_in_buffer = (size_t) insize;
-  src->next_input_byte = (JOCTET *) inbuffer;
+  src->next_input_byte = (const JOCTET *) inbuffer;
 }