From d34a4d9c6571cc7ff518062bcad8b951c7abf17e Mon Sep 17 00:00:00 2001
From: Kevin Ring <kevin@kotachrome.com>
Date: Wed, 6 Nov 2024 21:05:04 +1100
Subject: [PATCH] Add stock abseil port.

---
 extern/vcpkg-overlays/abseil/portfile.cmake | 53 +++++++++++++++++++++
 extern/vcpkg-overlays/abseil/vcpkg.json     | 26 ++++++++++
 2 files changed, 79 insertions(+)
 create mode 100644 extern/vcpkg-overlays/abseil/portfile.cmake
 create mode 100644 extern/vcpkg-overlays/abseil/vcpkg.json

diff --git a/extern/vcpkg-overlays/abseil/portfile.cmake b/extern/vcpkg-overlays/abseil/portfile.cmake
new file mode 100644
index 000000000..057bf7ea3
--- /dev/null
+++ b/extern/vcpkg-overlays/abseil/portfile.cmake
@@ -0,0 +1,53 @@
+if(NOT VCPKG_TARGET_IS_WINDOWS)
+    vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
+endif()
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO abseil/abseil-cpp
+    REF "${VERSION}"
+    SHA512 bd2cca8f007f2eee66f51c95a979371622b850ceb2ce3608d00ba826f7c494a1da0fba3c1427728f2c173fe50d59b701da35c2c9fdad2752a5a49746b1c8ef31
+    HEAD_REF master
+)
+
+# With ABSL_PROPAGATE_CXX_STD=ON abseil automatically detect if it is being
+# compiled with C++14 or C++17, and modifies the installed `absl/base/options.h`
+# header accordingly. This works even if CMAKE_CXX_STANDARD is not set. Abseil
+# uses the compiler default behavior to update `absl/base/options.h` as needed.
+set(ABSL_USE_CXX17_OPTION "")
+if("cxx17" IN_LIST FEATURES)
+    set(ABSL_USE_CXX17_OPTION "-DCMAKE_CXX_STANDARD=17")
+endif()
+
+set(ABSL_STATIC_RUNTIME_OPTION "")
+if(VCPKG_TARGET_IS_WINDOWS AND VCPKG_CRT_LINKAGE STREQUAL "static")
+    set(ABSL_STATIC_RUNTIME_OPTION "-DABSL_MSVC_STATIC_RUNTIME=ON")
+endif()
+
+vcpkg_cmake_configure(
+    SOURCE_PATH "${SOURCE_PATH}"
+    DISABLE_PARALLEL_CONFIGURE
+    OPTIONS
+        -DABSL_PROPAGATE_CXX_STD=ON
+        ${ABSL_USE_CXX17_OPTION}
+        ${ABSL_STATIC_RUNTIME_OPTION}
+)
+
+vcpkg_cmake_install()
+vcpkg_cmake_config_fixup(PACKAGE_NAME absl CONFIG_PATH lib/cmake/absl)
+vcpkg_fixup_pkgconfig()
+
+vcpkg_copy_pdbs()
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share"
+                    "${CURRENT_PACKAGES_DIR}/debug/include"
+                    "${CURRENT_PACKAGES_DIR}/include/absl/copts"
+                    "${CURRENT_PACKAGES_DIR}/include/absl/strings/testdata"
+                    "${CURRENT_PACKAGES_DIR}/include/absl/time/internal/cctz/testdata"
+)
+
+if(VCPKG_TARGET_IS_WINDOWS AND VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
+    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/absl/base/config.h" "defined(ABSL_CONSUME_DLL)" "1")
+    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/absl/base/internal/thread_identity.h" "defined(ABSL_CONSUME_DLL)" "1")
+endif()
+
+vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE")
diff --git a/extern/vcpkg-overlays/abseil/vcpkg.json b/extern/vcpkg-overlays/abseil/vcpkg.json
new file mode 100644
index 000000000..1b8bccfba
--- /dev/null
+++ b/extern/vcpkg-overlays/abseil/vcpkg.json
@@ -0,0 +1,26 @@
+{
+  "name": "abseil",
+  "version": "20240722.0",
+  "description": [
+    "Abseil is an open-source collection of C++ library code designed to augment the C++ standard library. The Abseil library code is collected from Google's own C++ code base, has been extensively tested and used in production, and is the same code we depend on in our daily coding lives.",
+    "In some cases, Abseil provides pieces missing from the C++ standard; in others, Abseil provides alternatives to the standard for special needs we've found through usage in the Google code base. We denote those cases clearly within the library code we provide you.",
+    "Abseil is not meant to be a competitor to the standard library; we've just found that many of these utilities serve a purpose within our code base, and we now want to provide those resources to the C++ community as a whole."
+  ],
+  "homepage": "https://github.com/abseil/abseil-cpp",
+  "license": "Apache-2.0",
+  "dependencies": [
+    {
+      "name": "vcpkg-cmake",
+      "host": true
+    },
+    {
+      "name": "vcpkg-cmake-config",
+      "host": true
+    }
+  ],
+  "features": {
+    "cxx17": {
+      "description": "Enable compiler C++17."
+    }
+  }
+}