Update png_archive version to 1.6.37

PiperOrigin-RevId: 249272809

tensorflow/contrib/cmake/external/png.cmake

@@ -16,8 +16,8 @@ include (ExternalProject)
 include (GNUInstallDirs)
 
 set(png_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/png_archive)
-set(png_URL https://mirror.bazel.build/github.com/glennrp/libpng/archive/v1.6.35.tar.gz)
-set(png_HASH SHA256=6d59d6a154ccbb772ec11772cb8f8beb0d382b61e7ccc62435bf7311c9f4b210)
+set(png_URL https://mirror.bazel.build/github.com/glennrp/libpng/archive/v1.6.37.tar.gz)
+set(png_HASH SHA256=ca74a0dace179a8422187671aee97dd3892b53e168627145271cad5b5ac81307)
 set(png_BUILD ${CMAKE_BINARY_DIR}/png/src/png)
 set(png_INSTALL ${CMAKE_BINARY_DIR}/png/install)
 

tensorflow/workspace.bzl

@@ -241,12 +241,12 @@ def tf_workspace(path_prefix = "", tf_repo_name = ""):
         name = "png_archive",
         build_file = clean_dep("//third_party:png.BUILD"),
         patch_file = clean_dep("//third_party:png_fix_rpi.patch"),
-        sha256 = "6d59d6a154ccbb772ec11772cb8f8beb0d382b61e7ccc62435bf7311c9f4b210",
-        strip_prefix = "libpng-1.6.35",
+        sha256 = "ca74a0dace179a8422187671aee97dd3892b53e168627145271cad5b5ac81307",
+        strip_prefix = "libpng-1.6.37",
         system_build_file = clean_dep("//third_party/systemlibs:png.BUILD"),
         urls = [
-            "http://mirror.tensorflow.org/github.com/glennrp/libpng/archive/v1.6.35.tar.gz",
-            "https://github.com/glennrp/libpng/archive/v1.6.35.tar.gz",
+            "http://mirror.tensorflow.org/github.com/glennrp/libpng/archive/v1.6.37.tar.gz",
+            "https://github.com/glennrp/libpng/archive/v1.6.37.tar.gz",
         ],
     )
 

third_party/png_fix_rpi.patch

@@ -1,7 +1,7 @@
-diff -r -u /tmp/libpng-1.6.34/scripts/pnglibconf.h.prebuilt ./scripts/pnglibconf.h.prebuilt
---- /tmp/libpng-1.6.34/scripts/pnglibconf.h.prebuilt	2017-09-29 01:42:33.000000000 -0700
-+++ ./scripts/pnglibconf.h.prebuilt	2018-05-01 09:51:24.719318242 -0700
-@@ -20,6 +20,12 @@
+diff -r -u /tmp/libpng-1.6.37/scripts/pnglibconf.h.prebuilt ./scripts/pnglibconf.h.prebuilt
+--- /tmp/libpng-1.6.37/scripts/pnglibconf.h.prebuilt    2019-04-14 11:10:32.000000000 -0700
++++ ./scripts/pnglibconf.h.prebuilt     2019-05-21 09:40:52.138528512 -0700
+@@ -19,6 +19,12 @@
  #define PNG_ALIGNED_MEMORY_SUPPORTED
  /*#undef PNG_ARM_NEON_API_SUPPORTED*/
  /*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
@@ -11,6 +11,6 @@ diff -r -u /tmp/libpng-1.6.34/scripts/pnglibconf.h.prebuilt ./scripts/pnglibconf
 +#define PNG_ARM_NEON_OPT 0
 +
 +
- /*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
- /*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
  #define PNG_BENIGN_ERRORS_SUPPORTED
+ #define PNG_BENIGN_READ_ERRORS_SUPPORTED
+ /*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/