cmake: Install headers

CMakeLists.txt

@@ -504,6 +504,10 @@ foreach(name
   configure_file("${name}.in" "${name}" @ONLY)
 endforeach()
 
+include_directories(
+  "${CMAKE_BINARY_DIR}" # for config.h
+)
+
 
 add_subdirectory(lib)
 #add_subdirectory(lib/includes)

lib/CMakeLists.txt

@@ -1,5 +1,6 @@
+add_subdirectory(includes)
+
 include_directories(
-  "${CMAKE_BINARY_DIR}" # for config.h
   "${CMAKE_CURRENT_SOURCE_DIR}/includes"
   "${CMAKE_CURRENT_BINARY_DIR}/includes"
 )

lib/includes/CMakeLists.txt

@@ -0,0 +1,4 @@
+install(FILES
+    nghttp2/nghttp2.h
+    "${CMAKE_CURRENT_BINARY_DIR}/nghttp2/nghttp2ver.h"
+  DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/nghttp2")