From d522ff4690f373721e014dca676f8c73da428383 Mon Sep 17 00:00:00 2001
From: Remo E <remo.eichenberger@gmail.com>
Date: Thu, 21 Jul 2016 11:28:54 +0200
Subject: cmake: add nghttp2 support

Closes #922
---
 CMake/FindNGHTTP2.cmake | 18 ++++++++++++++++++
 CMakeLists.txt          |  7 +++++++
 lib/curl_config.h.cmake |  3 +++
 3 files changed, 28 insertions(+)
 create mode 100644 CMake/FindNGHTTP2.cmake

diff --git a/CMake/FindNGHTTP2.cmake b/CMake/FindNGHTTP2.cmake
new file mode 100644
index 000000000..4e566cf02
--- /dev/null
+++ b/CMake/FindNGHTTP2.cmake
@@ -0,0 +1,18 @@
+include(FindPackageHandleStandardArgs)
+
+find_path(NGHTTP2_INCLUDE_DIR "nghttp2/nghttp2.h")
+
+find_library(NGHTTP2_LIBRARY NAMES nghttp2)
+
+find_package_handle_standard_args(NGHTTP2
+    FOUND_VAR
+      NGHTTP2_FOUND
+    REQUIRED_VARS
+      NGHTTP2_LIBRARY
+      NGHTTP2_INCLUDE_DIR
+    FAIL_MESSAGE
+      "Could NOT find NGHTTP2"
+)
+
+set(NGHTTP2_INCLUDE_DIRS ${NGHTTP2_INCLUDE_DIR} )
+set(NGHTTP2_LIBRARIES ${NGHTTP2_LIBRARY})
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7da33331b..6d19cb7aa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -332,6 +332,13 @@ if(CMAKE_USE_OPENSSL)
   endif()
 endif()
 
+option(USE_NGHTTP2 "Use Nghttp2 library" OFF)
+if(USE_NGHTTP2)
+  find_package(NGHTTP2 REQUIRED)
+  include_directories(${NGHTTP2_INCLUDE_DIRS})
+  list(APPEND CURL_LIBS ${NGHTTP2_LIBRARIES})
+endif()
+
 if(NOT CURL_DISABLE_LDAP)
   if(WIN32)
     option(USE_WIN32_LDAP "Use Windows LDAP implementation" ON)
diff --git a/lib/curl_config.h.cmake b/lib/curl_config.h.cmake
index ddcd210de..33c15cb6f 100644
--- a/lib/curl_config.h.cmake
+++ b/lib/curl_config.h.cmake
@@ -936,6 +936,9 @@
 /* if OpenSSL is in use */
 #cmakedefine USE_OPENSSL 1
 
+/* to enable NGHTTP2  */
+#cmakedefine USE_NGHTTP2 1
+
 /* if Unix domain sockets are enabled  */
 #cmakedefine USE_UNIX_SOCKETS
 
-- 
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