3 files changed, 41 insertions, 10 deletions
diff --git a/ports/date/CMakeLists.txt b/ports/date/CMakeLists.txt
index 4c38e4a87..292c1758a 100644
--- a/ports/date/CMakeLists.txt
+++ b/ports/date/CMakeLists.txt
@@ -1,28 +1,44 @@
 cmake_minimum_required(VERSION 3.5.1)
 project(tz CXX)
 
+set(CMAKE_CXX_STANDARD 11)
 if(MSVC)
   add_compile_options(/W3 /wd4005 /wd4996 /wd4018 -D_CRT_SECURE_NO_WARNINGS)
 endif()
 
-add_definitions(-DNOMINMAX)
+option(HAS_REMOTE_API "" 0)
 
+add_definitions(-DNOMINMAX -DHAS_REMOTE_API=${HAS_REMOTE_API})
 
-include_directories("./include")
+add_library(date INTERFACE)
+target_include_directories(date INTERFACE $<INSTALL_INTERFACE:include>)
 
 add_library(tz src/tz.cpp)
+target_include_directories(tz PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include>)
+
+if(HAS_REMOTE_API)
+  find_package(CURL REQUIRED)
+  target_link_libraries(tz PUBLIC $<BUILD_INTERFACE:${CURL_LIBRARIES}>)
+  target_include_directories(tz PUBLIC $<BUILD_INTERFACE:${CURL_INCLUDE_DIRS}>)
+endif()
 
 if(BUILD_SHARED_LIBS)
   target_compile_definitions(tz PRIVATE -DDATE_BUILD_DLL)
 endif()
 
 install(
-  TARGETS tz
+  TARGETS tz date
+  EXPORT tz
   RUNTIME DESTINATION bin
   LIBRARY DESTINATION lib
   ARCHIVE DESTINATION lib
 )
 
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/unofficial-date-config.cmake" "include(\${CMAKE_CURRENT_LIST_DIR}/unofficial-date-targets.cmake)\n")
+
+install(EXPORT tz FILE unofficial-date-targets.cmake NAMESPACE unofficial::date:: DESTINATION share/unofficial-date)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/unofficial-date-config.cmake DESTINATION share/unofficial-date)
+
 if(NOT DISABLE_INSTALL_HEADERS)
   install(FILES include/date/date.h include/date/tz.h include/date/julian.h include/date/iso_week.h include/date/islamic.h  DESTINATION include/date)
 endif()
diff --git a/ports/date/CONTROL b/ports/date/CONTROL
index 8c1797072..f9a86d671 100644
--- a/ports/date/CONTROL
+++ b/ports/date/CONTROL
@@ -1,3 +1,7 @@
 Source: date
-Version: 2.4
+Version: 2.4.1
 Description: A date and time library based on the C++11/14/17 <chrono> header
+
+Feature: remote-api
+Description: support automatic download of tz data
+Build-Depends: curl
diff --git a/ports/date/portfile.cmake b/ports/date/portfile.cmake
index c60a7bcb0..749c0c5f0 100644
--- a/ports/date/portfile.cmake
+++ b/ports/date/portfile.cmake
@@ -1,15 +1,17 @@
 include(vcpkg_common_functions)
 
-message(WARNING
-  "You will need to also install http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml into your install location"
-  "See https://howardhinnant.github.io/date/tz.html"
-)
+if(NOT VCPKG_CMAKE_SYSTEM_NAME OR VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
+  message(WARNING
+    "You will need to also install http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml into your install location.\n"
+    "See https://howardhinnant.github.io/date/tz.html"
+  )
+endif()
 
 vcpkg_from_github(
   OUT_SOURCE_PATH SOURCE_PATH
   REPO HowardHinnant/date
-  REF v2.4
-  SHA512 01bcc021ebf9ca0ac88c797896a291ff81834e7fae37323ad20881d3a172963c04d3c7bea0dd37cd945b756ab7f70f0a02edb18a085bf9abf8d8f10056f73f3c
+  REF v2.4.1
+  SHA512 ce7d1c4518558d3690b3a33cd3da1066b43a5f641282c331c60be73e9b010227d4998bca5f34694215ae52f6514a2f5eccd6b0a5ee3dcf8cef2f2d1644c8beee
   HEAD_REF master
 )
 
@@ -20,18 +22,27 @@ vcpkg_apply_patches(
 
 file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
 
+set(HAS_REMOTE_API 0)
+if("remote-api" IN_LIST FEATURES)
+  set(HAS_REMOTE_API 1)
+endif()
+
 vcpkg_configure_cmake(
   SOURCE_PATH ${SOURCE_PATH}
   PREFER_NINJA
+  OPTIONS -DHAS_REMOTE_API=${HAS_REMOTE_API}
   OPTIONS_DEBUG -DDISABLE_INSTALL_HEADERS=ON
 )
 
 vcpkg_install_cmake()
 
+vcpkg_fixup_cmake_targets(CONFIG_PATH share/unofficial-date TARGET_PATH share/unofficial-date)
+
 vcpkg_copy_pdbs()
 
 set(HEADER "${CURRENT_PACKAGES_DIR}/include/date/tz.h")
 file(READ "${HEADER}" _contents)
+string(REPLACE "#define TZ_H" "#define TZ_H\n#undef HAS_REMOTE_API\n#define HAS_REMOTE_API ${HAS_REMOTE_API}" _contents "${_contents}")
 if(VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
   string(REPLACE "ifdef DATE_BUILD_DLL" "if 1" _contents "${_contents}")
 endif()