3 files changed, 100 insertions, 0 deletions
diff --git a/vcpkg/ports/ensmallen/dependencies.patch b/vcpkg/ports/ensmallen/dependencies.patch
new file mode 100644
index 0000000..acd097b
--- /dev/null
+++ b/vcpkg/ports/ensmallen/dependencies.patch
@@ -0,0 +1,43 @@
+diff --git a/CMake/ensmallen-config.cmake.in b/CMake/ensmallen-config.cmake.in
+index 3a9a93c..7bed7fd 100644
+--- a/CMake/ensmallen-config.cmake.in
++++ b/CMake/ensmallen-config.cmake.in
+@@ -1,4 +1,9 @@
+ @PACKAGE_INIT@
++include(CMakeFindDependencyMacro)
++if(@USE_OPENMP@)
++find_dependency(OpenMP)
++endif()
++find_dependency(Armadillo CONFIG)
+ 
+ include(${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake)
+ check_required_components(ensmallen)
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 551c538..0b20af1 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -47,21 +47,13 @@ endif()
+ 
+ # Find OpenMP and link it.
+ if(USE_OPENMP)
+-  if(NOT TARGET OpenMP::OpenMP_CXX)
+-    find_package(Threads REQUIRED)
+-    add_library(OpenMP::OpenMP_CXX IMPORTED INTERFACE)
+-    set_property(TARGET OpenMP::OpenMP_CXX
+-        PROPERTY INTERFACE_COMPILE_OPTIONS ${OpenMP_CXX_FLAGS})
+-    # Only works if the same flag is passed to the linker; use CMake 3.9+ otherwise (Intel, AppleClang).
+-    set_property(TARGET OpenMP::OpenMP_CXX
+-        PROPERTY INTERFACE_LINK_LIBRARIES ${OpenMP_CXX_FLAGS} Threads::Threads)
+-  endif()
++  find_package(OpenMP REQUIRED)
+   target_link_libraries(ensmallen INTERFACE OpenMP::OpenMP_CXX)
+ endif()
+ 
+ # Find Armadillo and link it.
+-find_package(Armadillo 9.800.0 REQUIRED)
+-target_link_libraries(ensmallen INTERFACE Armadillo::Armadillo)
++find_package(Armadillo CONFIG REQUIRED)
++target_link_libraries(ensmallen INTERFACE armadillo)
+ 
+ # Set helper variables for creating the version, config and target files.
+ include(CMakePackageConfigHelpers)
diff --git a/vcpkg/ports/ensmallen/portfile.cmake b/vcpkg/ports/ensmallen/portfile.cmake
new file mode 100644
index 0000000..b7f18ed
--- /dev/null
+++ b/vcpkg/ports/ensmallen/portfile.cmake
@@ -0,0 +1,27 @@
+set(VCPKG_BUILD_TYPE release) # header-only
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO mlpack/ensmallen
+    REF "${VERSION}"
+    SHA512 1e86fc28a58694057262a8d036af8080be084c889f7b659b77a08fd4e0957d0f03d8866e47b682a1868b5ac2198cca85c591a334b284096659a123196de95a66
+    HEAD_REF master
+    PATCHES
+        dependencies.patch
+)
+
+vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
+    FEATURES
+        openmp     USE_OPENMP
+)
+
+vcpkg_cmake_configure(
+    SOURCE_PATH "${SOURCE_PATH}"
+    OPTIONS ${FEATURE_OPTIONS}
+)
+vcpkg_cmake_install()
+vcpkg_cmake_config_fixup(CONFIG_PATH lib/cmake/ensmallen)
+
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/lib")
+
+vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/COPYRIGHT.txt")
diff --git a/vcpkg/ports/ensmallen/vcpkg.json b/vcpkg/ports/ensmallen/vcpkg.json
new file mode 100644
index 0000000..579b0ca
--- /dev/null
+++ b/vcpkg/ports/ensmallen/vcpkg.json
@@ -0,0 +1,30 @@
+{
+  "name": "ensmallen",
+  "version-semver": "2.21.1",
+  "port-version": 1,
+  "description": "A header-only C++ library for mathematical optimization",
+  "homepage": "http://ensmallen.org/",
+  "license": "BSD-3-Clause",
+  "dependencies": [
+    "armadillo",
+    {
+      "name": "vcpkg-cmake",
+      "host": true
+    },
+    {
+      "name": "vcpkg-cmake-config",
+      "host": true
+    }
+  ],
+  "default-features": [
+    {
+      "name": "openmp",
+      "platform": "!osx"
+    }
+  ],
+  "features": {
+    "openmp": {
+      "description": "Enable OpenMP support"
+    }
+  }
+}