diff --git a/third-party/mozjpeg/mozjpeg/src/jconfig.h b/third-party/mozjpeg/mozjpeg/src/jconfig.h
new file mode 100644
index 0000000000..beccc163e6
--- /dev/null
+++ b/third-party/mozjpeg/mozjpeg/src/jconfig.h
@@ -0,0 +1,73 @@
+/* Version ID for the JPEG library.
+ * Might be useful for tests like "#if JPEG_LIB_VERSION >= 60".
+ */
+#define JPEG_LIB_VERSION  80
+
+/* libjpeg-turbo version */
+#define LIBJPEG_TURBO_VERSION  4.0.0
+
+/* libjpeg-turbo version in integer form */
+#define LIBJPEG_TURBO_VERSION_NUMBER  4000000
+
+/* Support arithmetic encoding */
+#define C_ARITH_CODING_SUPPORTED 1
+
+/* Support arithmetic decoding */
+#define D_ARITH_CODING_SUPPORTED 1
+
+/* Support in-memory source/destination managers */
+/* #undef MEM_SRCDST_SUPPORTED */
+
+/* Use accelerated SIMD routines. */
+#define WITH_SIMD 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.
+ */
+
+#define BITS_IN_JSAMPLE  8      /* use 8 or 12 */
+
+/* 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
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define if you need to include <sys/types.h> to get size_t. */
+#define NEED_SYS_TYPES_H 1
+
+/* Define if you have BSD-like bzero and bcopy in <strings.h> rather than
+   memset/memcpy in <string.h>. */
+/* #undef NEED_BSD_STRINGS */
+
+/* Define to 1 if the system has the type `unsigned char'. */
+#define HAVE_UNSIGNED_CHAR 1
+
+/* Define to 1 if the system has the type `unsigned short'. */
+#define HAVE_UNSIGNED_SHORT 1
+
+/* Compiler does not support pointers to undefined structures. */
+/* #undef INCOMPLETE_TYPES_BROKEN */
+
+/* Define if your (broken) compiler shifts signed values as if they were
+   unsigned. */
+/* #undef RIGHT_SHIFT_IS_UNSIGNED */
+
+/* Define to 1 if type `char' is unsigned and you are not using gcc.  */
+#ifndef __CHAR_UNSIGNED__
+/* #undef __CHAR_UNSIGNED__ */
+#endif
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
diff --git a/third-party/mozjpeg/mozjpeg/src/jconfigint.h b/third-party/mozjpeg/mozjpeg/src/jconfigint.h
new file mode 100644
index 0000000000..4d0059156a
--- /dev/null
+++ b/third-party/mozjpeg/mozjpeg/src/jconfigint.h
@@ -0,0 +1,31 @@
+/* libjpeg-turbo build number */
+#define BUILD  "20201129"
+
+/* Compiler's inline keyword */
+#undef inline
+
+/* How to obtain function inlining. */
+#define INLINE  __inline__ __attribute__((always_inline))
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME  "mozjpeg"
+
+/* Version number of package */
+#define VERSION  "4.0.0"
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T  8
+
+/* Define if your compiler has __builtin_ctzl() and sizeof(unsigned long) == sizeof(size_t). */
+#define HAVE_BUILTIN_CTZL
+
+/* Define to 1 if you have the <intrin.h> header file. */
+/* #undef HAVE_INTRIN_H */
+
+#if defined(_MSC_VER) && defined(HAVE_INTRIN_H)
+#if (SIZEOF_SIZE_T == 8)
+#define HAVE_BITSCANFORWARD64
+#elif (SIZEOF_SIZE_T == 4)
+#define HAVE_BITSCANFORWARD
+#endif
+#endif