diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index d95206c5..c2815ca3 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,4 +1,6 @@ # +# Copyright 2017 Garrett D'Amore <garrett@damore.org> +# Copyright 2017 Capitar IT Group BV <info@capitar.com> # Copyright (c) 2012 Martin Sustrik All rights reserved. # Copyright (c) 2013 GoPivotal, Inc. All rights reserved. # Copyright (c) 2015-2016 Jack R. Dunaway. All rights reserved. @@ -91,7 +93,8 @@ option (NNG_TESTS "Build and run tests" ON) option (NNG_TOOLS "Build extra tools" OFF) option (NNG_ENABLE_NNGCAT "Enable building nngcat utility." ${NNG_TOOLS}) option (NNG_ENABLE_COVERAGE "Enable coverage reporting." OFF) - +option (NNG_ENABLE_ZEROTIER "Enable ZeroTier transport (requires libzerotiercore)." OFF) +set (NNG_ZEROTIER_SOURCE "" CACHE PATH "Location of ZeroTier source tree.") # Enable access to private APIs for our own use. add_definitions (-DNNG_PRIVATE) @@ -244,6 +247,39 @@ nng_check_sym (strlcat string.h NNG_HAVE_STRLCAT) nng_check_sym (strlcpy string.h NNG_HAVE_STRLCPY) nng_check_sym (strnlen string.h NNG_HAVE_STRNLEN) +# Search for ZeroTier +# We use the libzerotiercore.a library, which is unfortunately a C++ object +# even though it exposes only public C symbols. It would be extremely +# helpful if libzerotiercore didn't make us carry the whole C++ runtime +# behind us. The user must specify the location of the ZeroTier source +# tree (dev branch for now, and already compiled please) by setting the +# NNG_ZEROTIER_SOURCE macro. +# NB: This needs to be the zerotierone tree, not the libzt library. +# This is because we don't access the API, but instead use the low +# level zerotiercore functionality directly. +# NB: As we wind up linking libzerotiercore.a into the application, +# this means that your application will *also* need to either be licensed +# under the GPLv3, or you will need to have a commercial license from +# ZeroTier permitting its use elsewhere. +if (NNG_ENABLE_ZEROTIER) + enable_language(CXX) + find_library(NNG_LIBZTCORE zerotiercore PATHS ${NNG_ZEROTIER_SOURCE}) + if (NNG_LIBZTCORE) + set(CMAKE_REQUIRED_INCLUDES ${NNG_ZEROTIER_SOURCE}/include) +# set(CMAKE_REQUIRED_LIBRARIES ${NNG_LIBZTCORE} c++) +# set(NNG_REQUIRED_LIBRARIES ${NNG_REQUIRED_LIBRARIES} ${NNG_LIBZTCORE} c++) + message(STATUS "C++ ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES}") + set(CMAKE_REQUIRED_LIBRARIES ${NNG_LIBZTCORE} ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES}) + set(NNG_REQUIRED_LIBRARIES ${NNG_REQUIRED_LIBRARIES} ${NNG_LIBZTCORE} ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES}) + set(NNG_REQUIRED_INCLUDES ${NNG_REQUIRED_INCLUDES} ${NNG_ZEROTIER_SOURCE}/include) + nng_check_sym(ZT_Node_join ZeroTierOne.h NNG_HAVE_ZEROTIER) + endif() + if (NOT NNG_HAVE_ZEROTIER) + message (FATAL_ERROR "Cannot find ZeroTier components") + endif() + message(STATUS "Found ZeroTier at ${NNG_LIBZTCORE}") +endif() + add_subdirectory (src) if (NNG_TESTS) @@ -253,6 +289,7 @@ if (NNG_TESTS) add_subdirectory (perf) endif() + # Build the tools if (NNG_ENABLE_NNGCAT) @@ -270,6 +307,7 @@ if (NNG_ENABLE_DOC) endif () endif () + # Build the documenation if (NNG_ENABLE_DOC) |