Update to libjpeg_turbo 1.4.90

jconfig.h

Index: jconfig.h
diff --git a/jconfig.h b/jconfig.h
index b6191812d1385f76f1d0bdf06ba6d8661b938a81..fe4a43764d05b83902d234e85c6e8fba952fa692 100644
--- a/jconfig.h
+++ b/jconfig.h
@@ -5,19 +5,27 @@
 #define JPEG_LIB_VERSION 62
 
 /* libjpeg-turbo version */
-#define LIBJPEG_TURBO_VERSION 1.3.1
+#define LIBJPEG_TURBO_VERSION 1.4.2
 
 /* Support arithmetic encoding */
-/* #undef C_ARITH_CODING_SUPPORTED */
+/* #define C_ARITH_CODING_SUPPORTED 1 */
 
 /* Support arithmetic decoding */
-/* #undef D_ARITH_CODING_SUPPORTED */
+/* #define D_ARITH_CODING_SUPPORTED 1 */
+
+/*
+ * Define BITS_IN_JSAMPLE as either
+ *   8   for 8-bit sample values (the usual setting)
+ *   12  for 12-bit sample values
+ * Only 8 and 12 are legal data precisions for lossy JPEG according to the
+ * JPEG standard, and the IJG code does not support anything else!
+ * We do not support run-time selection of data precision, sorry.
+ */
 
-/* Support in-memory source/destination managers */
-/* #undef MEM_SRCDST_SUPPORTED */
+#define BITS_IN_JSAMPLE  8      /* use 8 or 12 */
 
-/* Define if your compiler supports prototypes */
-#define HAVE_PROTOTYPES 1
+/* Define to 1 if you have the <locale.h> header file. */
+#define HAVE_LOCALE_H 1
 
 /* Define to 1 if you have the <stddef.h> header file. */
 #define HAVE_STDDEF_H 1
@@ -31,19 +39,21 @@
 /* Define to 1 if the system has the type `unsigned short'. */
 #define HAVE_UNSIGNED_SHORT 1
 
-/* Define if you want use complete types */
+/* Compiler does not support pointers to undefined structures. */
 /* #undef INCOMPLETE_TYPES_BROKEN */
 
-/* Define if you have BSD-like bzero and bcopy */
-/* #undef NEED_BSD_STRINGS */
+/* Support in-memory source/destination managers */
+/* #undef MEM_SRCDST_SUPPORTED */
 
-/* Define if you need short function names */
-/* #undef NEED_SHORT_EXTERNAL_NAMES */
+/* Define if you have BSD-like bzero and bcopy in <strings.h> rather than
+   memset/memcpy in <string.h>. */
+/* #undef NEED_BSD_STRINGS */
 
-/* Define if you have sys/types.h */
-/* #undef NEED_SYS_TYPES_H */
+/* Define if you need to include <sys/types.h> to get size_t. */
+/* #undef NEED_SYS_TYPES_H 1 */
 
-/* Define if shift is unsigned */
+/* Define if your (broken) compiler shifts signed values as if they were
+   unsigned. */
 /* #undef RIGHT_SHIFT_IS_UNSIGNED */
 
 /* Use accelerated SIMD routines. */