use C++17 to match abseil ABI in libsentencepiece

recipes/torchtext/meta.yaml

@@ -17,6 +17,7 @@ source:
     - patches/0003-remove-unnecessary-installation-requirements.patch
     - patches/0004-load-library-from-correct-place.patch
     - patches/0005-don-t-try-to-init-submodules.patch
+    - patches/0006-must-use-C-17-to-match-abseil.patch
 
 build:
   number: 0

recipes/torchtext/patches/0001-do-not-build-third_party-libs.patch

@@ -1,7 +1,7 @@
 From 420cbd5a4c2b46e285529eb3c15de8847818f5dc Mon Sep 17 00:00:00 2001
 From: "H. Vetinari" <[email protected]>
 Date: Wed, 1 Dec 2021 21:07:42 +1100
-Subject: [PATCH 1/5] do not build third_party libs
+Subject: [PATCH 1/6] do not build third_party libs
 
 ---
  CMakeLists.txt                | 5 ++++-

recipes/torchtext/patches/0002-fix-some-CMake-arguments-for-our-infrastructure.patch

@@ -1,7 +1,7 @@
 From 60d8122796befb3fe5798c09463e18ac16f5d8d1 Mon Sep 17 00:00:00 2001
 From: "H. Vetinari" <[email protected]>
 Date: Wed, 18 Jan 2023 16:56:57 +1100
-Subject: [PATCH 2/5] fix some CMake arguments for our infrastructure
+Subject: [PATCH 2/6] fix some CMake arguments for our infrastructure
 
 ---
  tools/setup_helpers/extension.py | 10 ++++------

recipes/torchtext/patches/0003-remove-unnecessary-installation-requirements.patch

@@ -1,7 +1,7 @@
 From 12ec329580410d3bfd02ed2a950c2d7de812bbbf Mon Sep 17 00:00:00 2001
 From: "H. Vetinari" <[email protected]>
 Date: Wed, 18 Jan 2023 22:06:33 +1100
-Subject: [PATCH 3/5] remove unnecessary installation requirements
+Subject: [PATCH 3/6] remove unnecessary installation requirements
 
 ---
  setup.py | 2 +-

recipes/torchtext/patches/0004-load-library-from-correct-place.patch

@@ -1,7 +1,7 @@
 From cc583924ad87bc2b9a0b3b89753885446a2e1eec Mon Sep 17 00:00:00 2001
 From: "H. Vetinari" <[email protected]>
 Date: Wed, 18 Jan 2023 22:25:03 +1100
-Subject: [PATCH 4/5] load library from correct place
+Subject: [PATCH 4/6] load library from correct place
 
 ---
  torchtext/_extension.py | 2 +-

recipes/torchtext/patches/0005-don-t-try-to-init-submodules.patch

@@ -1,7 +1,7 @@
 From a2e6933a9ae206f216e4b20d14010912f5ff9758 Mon Sep 17 00:00:00 2001
 From: "H. Vetinari" <[email protected]>
 Date: Wed, 18 Jan 2023 22:58:13 +1100
-Subject: [PATCH 5/5] don't try to init submodules
+Subject: [PATCH 5/6] don't try to init submodules
 
 ---
  setup.py | 1 -

recipes/torchtext/patches/0006-must-use-C-17-to-match-abseil.patch

@@ -0,0 +1,25 @@
+From 37c5c5e4e1c729bf28ac53fa6eedc0a55361bd4f Mon Sep 17 00:00:00 2001
+From: "H. Vetinari" <[email protected]>
+Date: Fri, 20 Jan 2023 17:16:20 +1100
+Subject: [PATCH 6/6] must use C++17 to match abseil
+
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 46312680..cc136ad5 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -27,7 +27,7 @@ if(env_cxx_standard GREATER -1)
+       "PyTorch requires -std=c++14. Please remove -std=c++ settings in your environment.")
+ endif()
+
+-set(CMAKE_CXX_STANDARD 14)
++set(CMAKE_CXX_STANDARD 17)
+ set(CMAKE_C_STANDARD 11)
+
+ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+-- 
+2.38.1.windows.1
+