From 83c0cb3f0328504baf425704803c2ae83942cb86 Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike@sf-mail.de>
Date: Mon, 5 Mar 2018 22:17:28 +0100
Subject: FindCURL: provide imported target CURL::CURL

---
 Help/release/dev/curl-target.rst   |  4 ++++
 Modules/FindCURL.cmake             | 12 ++++++++++++
 Tests/CMakeLists.txt               |  4 ++++
 Tests/FindCURL/CMakeLists.txt      | 10 ++++++++++
 Tests/FindCURL/Test/CMakeLists.txt | 16 ++++++++++++++++
 Tests/FindCURL/Test/main.c         | 17 +++++++++++++++++
 6 files changed, 63 insertions(+)
 create mode 100644 Help/release/dev/curl-target.rst
 create mode 100644 Tests/FindCURL/CMakeLists.txt
 create mode 100644 Tests/FindCURL/Test/CMakeLists.txt
 create mode 100644 Tests/FindCURL/Test/main.c

diff --git a/Help/release/dev/curl-target.rst b/Help/release/dev/curl-target.rst
new file mode 100644
index 0000000..dc65f64
--- /dev/null
+++ b/Help/release/dev/curl-target.rst
@@ -0,0 +1,4 @@
+curl-target
+-----------
+
+* The :module:`FindCURL` module now provides imported targets.
diff --git a/Modules/FindCURL.cmake b/Modules/FindCURL.cmake
index f4bcc36..1d969a8 100644
--- a/Modules/FindCURL.cmake
+++ b/Modules/FindCURL.cmake
@@ -7,6 +7,12 @@
 #
 # Find curl
 #
+# IMPORTED Targets
+# ^^^^^^^^^^^^^^^^
+#
+# This module defines :prop_tgt:`IMPORTED` target ``CURL::CURL``, if
+# curl has been found.
+#
 # Find the native CURL headers and libraries.
 #
 # ::
@@ -52,4 +58,10 @@ FIND_PACKAGE_HANDLE_STANDARD_ARGS(CURL
 if(CURL_FOUND)
   set(CURL_LIBRARIES ${CURL_LIBRARY})
   set(CURL_INCLUDE_DIRS ${CURL_INCLUDE_DIR})
+
+  if(NOT TARGET CURL::CURL)
+    add_library(CURL::CURL UNKNOWN IMPORTED)
+    set_target_properties(CURL::CURL PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${CURL_INCLUDE_DIRS}")
+    set_property(TARGET CURL::CURL APPEND PROPERTY IMPORTED_LOCATION "${CURL_LIBRARY}")
+  endif()
 endif()
diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 0ce6d72..f34bc04 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -1326,6 +1326,10 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
     add_subdirectory(FindBZip2)
   endif()
 
+  if(CMake_TEST_FindCURL)
+    add_subdirectory(FindCURL)
+  endif()
+
   if(CMake_TEST_FindDoxygen)
     add_subdirectory(FindDoxygen)
   endif()
diff --git a/Tests/FindCURL/CMakeLists.txt b/Tests/FindCURL/CMakeLists.txt
new file mode 100644
index 0000000..0cfd629
--- /dev/null
+++ b/Tests/FindCURL/CMakeLists.txt
@@ -0,0 +1,10 @@
+add_test(NAME FindCURL.Test COMMAND
+  ${CMAKE_CTEST_COMMAND} -C $<CONFIGURATION>
+  --build-and-test
+  "${CMake_SOURCE_DIR}/Tests/FindCURL/Test"
+  "${CMake_BINARY_DIR}/Tests/FindCURL/Test"
+  ${build_generator_args}
+  --build-project TestFindCURL
+  --build-options ${build_options}
+  --test-command ${CMAKE_CTEST_COMMAND} -V -C $<CONFIGURATION>
+  )
diff --git a/Tests/FindCURL/Test/CMakeLists.txt b/Tests/FindCURL/Test/CMakeLists.txt
new file mode 100644
index 0000000..f0e5568
--- /dev/null
+++ b/Tests/FindCURL/Test/CMakeLists.txt
@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.10)
+project(TestFindCURL C)
+include(CTest)
+
+find_package(CURL REQUIRED)
+
+add_definitions(-DCMAKE_EXPECTED_CURL_VERSION="${CURL_VERSION_STRING}")
+
+add_executable(test_tgt main.c)
+target_link_libraries(test_tgt CURL::CURL)
+add_test(NAME test_tgt COMMAND test_tgt)
+
+add_executable(test_var main.c)
+target_include_directories(test_var PRIVATE ${CURL_INCLUDE_DIRS})
+target_link_libraries(test_var PRIVATE ${CURL_LIBRARIES})
+add_test(NAME test_var COMMAND test_var)
diff --git a/Tests/FindCURL/Test/main.c b/Tests/FindCURL/Test/main.c
new file mode 100644
index 0000000..263775f
--- /dev/null
+++ b/Tests/FindCURL/Test/main.c
@@ -0,0 +1,17 @@
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+  struct curl_slist* slist;
+
+  curl_global_init(0);
+
+  slist = curl_slist_append(NULL, "CMake");
+  curl_slist_free_all(slist);
+
+  curl_global_cleanup();
+
+  return 0;
+}
-- 
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