diff a/third_party/libtiff/tiffiop.h b/third_party/libtiff/tiffiop.h
--- a/third_party/libtiff/tiffiop.h
+++ b/third_party/libtiff/tiffiop.h
@@ -28,7 +28,7 @@
  * ``Library-private'' definitions.
  */
 
-#include "tif_config.h"
+#include "tiffconf.h"
 
 #ifdef HAVE_FCNTL_H
 # include <fcntl.h>
diff a/third_party/libtiff/tif_jpeg.c b/third_party/libtiff/tif_jpeg.c
--- a/third_party/libtiff/tif_jpeg.c
+++ b/third_party/libtiff/tif_jpeg.c
@@ -110,8 +110,13 @@
 #define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */
 #endif
 
+#if defined(USE_SYSTEM_LIBJPEG)
+#include <jerror.h>
+#include <jpeglib.h>
+#else
 #include "jerror.h"
 #include "jpeglib.h"
+#endif
 
 /* Do optional compile-time version check */
 #if defined(EXPECTED_JPEG_LIB_VERSION) && !defined(LIBJPEG_12_PATH)
diff a/third_party/libtiff/tiffconf.h b/third_party/libtiff/tiffconf.h
--- /dev/null
+++ b/third_party/libtiff/tiffconf.h
@@ -0,0 +1,240 @@
+/* libtiff/tiffconf.h.  Generated by configure.  */
+/*
+  Configuration defines for installed libtiff.
+  This file maintained for backward compatibility. Do not use definitions
+  from this file in your programs.
+*/
+#ifndef _TIFFCONF_
+#define _TIFFCONF_
+
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "build/build_config.h"
+
+//NOTE: The tiff codec requires an ANSI C compiler environment for building and 
+//    presumes an ANSI C environment for use.
+
+# define HAVE_SYS_TYPES_H 1
+# define HAVE_FCNTL_H 1
+
+/* Compatibility stuff. */
+
+/* Define to 1 if you have the <assert.h> header file. */
+#define HAVE_ASSERT_H 1
+
+/* Define as 0 or 1 according to the floating point format suported by the
+   machine */
+#define HAVE_IEEEFP 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have snprintf(). */
+#define HAVE_SNPRINTF 1
+
+/* Define to 1 if you have the <search.h> header file. */
+#if BUILDFLAG(IS_WIN)
+// search.h is always available in VS 2015 and above, and may be
+// available in earlier versions.
+#define HAVE_SEARCH_H 1
+#endif
+
+/* The size of a `int'. */
+/* According typedef int  int32_t; in the fx_system.h*/
+#define SIZEOF_INT 4
+
+#if defined(ARCH_CPU_64_BITS)
+/* The size of `unsigned long', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_LONG 8
+#else
+#define SIZEOF_UNSIGNED_LONG 4
+#endif
+
+/* The size of void*. */
+#ifdef __LP64__
+#define SIZEOF_VOIDP 8
+#else
+#define SIZEOF_VOIDP 4
+#endif
+
+/* Signed 8-bit type */
+#define TIFF_INT8_T signed char
+
+/* Unsigned 8-bit type */
+#define TIFF_UINT8_T unsigned char
+
+/* Signed 16-bit type */
+#define TIFF_INT16_T signed short
+
+/* Unsigned 16-bit type */
+#define TIFF_UINT16_T unsigned short
+
+/* Signed 32-bit type */
+#define TIFF_INT32_T signed int
+
+/* Unsigned 32-bit type */
+#define TIFF_UINT32_T unsigned int
+
+/* Signed 32-bit type formatter */
+#define TIFF_INT32_FORMAT "%d"
+
+/* Unsigned 32-bit type formatter */
+#define TIFF_UINT32_FORMAT "%u"
+
+#ifdef _MSC_VER   // windows
+
+/* Signed 64-bit type formatter */
+#define TIFF_INT64_FORMAT "%I64d"
+
+/* Unsigned 64-bit type formatter */
+#define TIFF_UINT64_FORMAT "%I64u"
+
+/* Signed 64-bit type */
+#define TIFF_INT64_T signed __int64
+
+/* Unsigned 64-bit type */
+#define TIFF_UINT64_T unsigned __int64
+
+#else           // linux/unix
+
+#if defined(ARCH_CPU_64_BITS)
+
+/* Signed 64-bit type formatter */
+#define TIFF_INT64_FORMAT "%ld"
+
+/* Unsigned 64-bit type formatter */
+#define TIFF_UINT64_FORMAT "%lu"
+
+/* Signed 64-bit type */
+#define TIFF_INT64_T signed long
+
+/* Unsigned 64-bit type */
+#define TIFF_UINT64_T unsigned long
+
+#else           // linux/unix 32
+
+/* Signed 64-bit type formatter */
+#define TIFF_INT64_FORMAT "%lld"
+
+/* Unsigned 64-bit type formatter */
+#define TIFF_UINT64_FORMAT "%llu"
+
+/* Signed 64-bit type */
+#define TIFF_INT64_T signed long long
+
+/* Unsigned 64-bit type */
+#define TIFF_UINT64_T unsigned long long
+
+#endif  // define(ARCH_CPU_64_BITS)
+
+#endif
+
+
+/* Signed size type, type formatter, and size of size_t */
+#if defined(ARCH_CPU_64_BITS)
+#define TIFF_SSIZE_T int64_t
+#define TIFF_SSIZE_FORMAT PRId64
+#define SIZEOF_SIZE_T 8
+#else
+#define TIFF_SSIZE_T int32_t
+#define TIFF_SSIZE_FORMAT PRId32
+#define SIZEOF_SIZE_T 4
+#endif
+
+/* Pointer difference type */
+#ifdef _MSC_VER
+#define TIFF_PTRDIFF_T long
+#else
+#define TIFF_PTRDIFF_T ptrdiff_t
+#endif
+
+/* Signed 64-bit type */
+/*#define TIFF_INT64_T signed __int64*/
+
+/* Unsigned 64-bit type */
+/*#define TIFF_UINT64_T unsigned __int64*/
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+# ifndef inline
+#  define inline __inline
+# endif
+#endif
+
+#define lfind _lfind
+
+#define BSDTYPES
+
+/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */
+#define HOST_FILLORDER FILLORDER_LSB2MSB
+
+/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian
+   (Intel) */
+#define HOST_BIGENDIAN 0
+
+/* Support CCITT Group 3 & 4 algorithms */
+#define CCITT_SUPPORT 1
+
+/* Support JPEG compression (requires IJG JPEG library) */
+#define JPEG_SUPPORT 1
+
+/* Support LogLuv high dynamic range encoding */
+#define LOGLUV_SUPPORT 1
+
+/* Support LZW algorithm */
+#define LZW_SUPPORT 1
+
+/* Support NeXT 2-bit RLE algorithm */
+#define NEXT_SUPPORT 1
+
+/* Support Old JPEG compresson (read contrib/ojpeg/README first! Compilation
+   fails with unpatched IJG JPEG library) */
+/* #undef OJPEG_SUPPORT */
+
+/* Support Macintosh PackBits algorithm */
+#define PACKBITS_SUPPORT 1
+
+/* Support Pixar log-format algorithm (requires Zlib) */
+#define PIXARLOG_SUPPORT 1
+
+/* Support ThunderScan 4-bit RLE algorithm */
+#define THUNDER_SUPPORT 1
+
+/* Support Deflate compression */
+/* #undef ZIP_SUPPORT */
+
+/* Support strip chopping (whether or not to convert single-strip uncompressed
+   images to multiple strips of ~8Kb to reduce memory usage) */
+#define STRIPCHOP_DEFAULT TIFF_STRIPCHOP
+
+/* Enable SubIFD tag (330) support */
+#define SUBIFD_SUPPORT 1
+
+/* Treat extra sample as alpha (default enabled). The RGBA interface will
+   treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many
+   packages produce RGBA files but don't mark the alpha properly. */
+#define DEFAULT_EXTRASAMPLE_AS_ALPHA 1
+
+/* Pick up YCbCr subsampling info from the JPEG data stream to support files
+   lacking the tag (default enabled). */
+#define CHECK_JPEG_YCBCR_SUBSAMPLING 1
+
+/* Support MS MDI magic number files as TIFF */
+#define MDI_SUPPORT 1
+
+/*
+ * Feature support definitions.
+ * XXX: These macros are obsoleted. Don't use them in your apps!
+ * Macros stays here for backward compatibility and should be always defined.
+ */
+#define COLORIMETRY_SUPPORT
+#define YCBCR_SUPPORT
+#define CMYK_SUPPORT
+#define ICC_SUPPORT
+#define PHOTOSHOP_SUPPORT
+#define IPTC_SUPPORT
+
+#endif /* _TIFFCONF_ */
diff --git a/third_party/libtiff/tif_hash_set.c b/third_party/libtiff/tif_hash_set.c
--- a/third_party/libtiff/tif_hash_set.c
+++ b/third_party/libtiff/tif_hash_set.c
@@ -26,7 +26,7 @@
  * DEALINGS IN THE SOFTWARE.
  ****************************************************************************/
 
-#include "tif_config.h"
+#include "tiffconf.h"
 
 #include "tif_hash_set.h"