[libdatachannel] Add new port

ports/libdatachannel/CONTROL

@@ -0,0 +1,12 @@
+Source: libdatachannel
+Version: 0.9.4
+Build-Depends: libjuice, plog, usrsctp
+Homepage: https://github.com/paullouisageneau/libdatachannel
+Description: libdatachannel is a standalone implementation of WebRTC Data Channels, WebRTC Media Transport, and WebSockets in C++17 with C bindings for POSIX platforms (including GNU/Linux, Android, and Apple macOS) and Microsoft Windows.
+
+Feature: no-ws
+Description: Disable Web Socket support
+
+Feature: srtp
+Description: Use Cisco's libSRTP for media transport.
+Build-Depends: libsrtp

ports/libdatachannel/fix-for-vcpkg.patch

@@ -0,0 +1,112 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 0098760..3b333ea 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -105,30 +105,19 @@ set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+ find_package(Threads REQUIRED)
+
+ set(CMAKE_POLICY_DEFAULT_CMP0048 NEW)
+-add_subdirectory(deps/plog)
+
+-option(sctp_build_programs 0)
+-add_subdirectory(deps/usrsctp EXCLUDE_FROM_ALL)
+-if (MSYS OR MINGW)
+-	target_compile_definitions(usrsctp PUBLIC -DSCTP_STDINT_INCLUDE=<stdint.h>)
+-	target_compile_definitions(usrsctp-static PUBLIC -DSCTP_STDINT_INCLUDE=<stdint.h>)
+-endif()
+-if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+-    target_compile_options(usrsctp PRIVATE -Wno-error=format-truncation)
+-	target_compile_options(usrsctp-static PRIVATE -Wno-error=format-truncation)
+-endif()
+-add_library(Usrsctp::Usrsctp ALIAS usrsctp)
+-add_library(Usrsctp::UsrsctpStatic ALIAS usrsctp-static)
++find_package(libjuice CONFIG REQUIRED)
++find_path(PLOG_INCLUDE_DIRS "plog/Appenders/AndroidAppender.h")
+
+ if (NO_WEBSOCKET)
+-	add_library(datachannel SHARED
++	add_library(datachannel
+ 		${LIBDATACHANNEL_SOURCES})
+ 	add_library(datachannel-static STATIC EXCLUDE_FROM_ALL
+ 		${LIBDATACHANNEL_SOURCES})
+ 	target_compile_definitions(datachannel PUBLIC RTC_ENABLE_WEBSOCKET=0)
+ 	target_compile_definitions(datachannel-static PUBLIC RTC_ENABLE_WEBSOCKET=0)
+ else()
+-	add_library(datachannel SHARED
++	add_library(datachannel
+ 		${LIBDATACHANNEL_SOURCES}
+ 		${LIBDATACHANNEL_WEBSOCKET_SOURCES})
+ 	add_library(datachannel-static STATIC EXCLUDE_FROM_ALL
+@@ -145,17 +134,18 @@ set_target_properties(datachannel-static PROPERTIES
+ 	VERSION ${PROJECT_VERSION}
+ 	CXX_STANDARD 17)
+
+-target_include_directories(datachannel PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
++target_include_directories(datachannel PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include>)
+ target_include_directories(datachannel PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include/rtc)
+ target_include_directories(datachannel PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+-target_link_libraries(datachannel PUBLIC Threads::Threads plog::plog)
+-target_link_libraries(datachannel PRIVATE Usrsctp::UsrsctpStatic)
++target_include_directories(datachannel PRIVATE ${PLOG_INCLUDE_DIRS})
++target_link_libraries(datachannel PRIVATE usrsctp)
+
+ target_include_directories(datachannel-static PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
+ target_include_directories(datachannel-static PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include/rtc)
+ target_include_directories(datachannel-static PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+-target_link_libraries(datachannel-static PUBLIC Threads::Threads plog::plog)
+-target_link_libraries(datachannel-static PRIVATE Usrsctp::UsrsctpStatic)
++target_include_directories(datachannel-static PRIVATE ${PLOG_INCLUDE_DIRS})
++target_link_libraries(datachannel-static PUBLIC Threads::Threads)
++target_link_libraries(datachannel-static PRIVATE usrsctp)
+
+ if(WIN32)
+ 	target_link_libraries(datachannel PRIVATE wsock32 ws2_32) # winsock2
+@@ -211,11 +201,10 @@ if (USE_NICE OR NOT USE_JUICE)
+ 	target_link_libraries(datachannel PRIVATE LibNice::LibNice)
+ 	target_link_libraries(datachannel-static PRIVATE LibNice::LibNice)
+ else()
+-	add_subdirectory(deps/libjuice EXCLUDE_FROM_ALL)
+ 	target_compile_definitions(datachannel PRIVATE USE_NICE=0)
+ 	target_compile_definitions(datachannel-static PRIVATE USE_NICE=0)
+-	target_link_libraries(datachannel PRIVATE LibJuice::LibJuiceStatic)
+-	target_link_libraries(datachannel-static PRIVATE LibJuice::LibJuiceStatic)
++	target_link_libraries(datachannel PRIVATE LibJuice::juice)
++	target_link_libraries(datachannel-static PRIVATE LibJuice::juice)
+ endif()
+
+ if(CAPI_STDCALL)
+@@ -226,7 +215,11 @@ endif()
+ add_library(LibDataChannel::LibDataChannel ALIAS datachannel)
+ add_library(LibDataChannel::LibDataChannelStatic ALIAS datachannel-static)
+
+-install(TARGETS datachannel LIBRARY DESTINATION lib)
++install(TARGETS datachannel EXPORT libdatachannel-config
++  RUNTIME DESTINATION bin
++  LIBRARY DESTINATION lib
++  ARCHIVE DESTINATION lib
++)
+ install(FILES ${LIBDATACHANNEL_HEADERS} DESTINATION include/rtc)
+
+ if(NOT MSVC)
+@@ -283,3 +276,8 @@ if(NOT NO_EXAMPLES)
+ 	add_subdirectory(examples/copy-paste-capi)
+ endif()
+
++install(
++  EXPORT libdatachannel-config
++  NAMESPACE LibDatachannel::
++  DESTINATION share/cmake/libdatachannel
++)
+diff --git a/src/tcptransport.hpp b/src/tcptransport.hpp
+index 1447835..1c92686 100644
+--- a/src/tcptransport.hpp
++++ b/src/tcptransport.hpp
+@@ -29,7 +29,7 @@
+ #include <thread>
+
+ // Use the socket defines from libjuice
+-#include "../deps/libjuice/src/socket.h"
++#include <juice/src/socket.h>
+
+ namespace rtc {
+

ports/libdatachannel/portfile.cmake

@@ -0,0 +1,32 @@
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO paullouisageneau/libdatachannel
+    REF v0.9.4
+    SHA512 aa4d5b0fad86ac9a323f89583508b416ad6cf5f0384458b3ba1aed9ba85093eb92dab6fbdcf915e9716d9b4fb38c57469d6ef59e05467232583556fc7652168e
+    HEAD_REF master
+    PATCHES
+        fix-for-vcpkg.patch
+)
+
+vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
+    FEATURES
+    no-ws NO_WEBSOCKET
+)
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS
+        ${FEATURE_OPTIONS}
+        -DNO_EXAMPLES=ON
+        -DNO_TESTS=ON
+)
+
+vcpkg_install_cmake()
+
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
+
+vcpkg_fixup_cmake_targets(CONFIG_PATH share/cmake/libdatachannel)
+vcpkg_fixup_pkgconfig()
+
+file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)