Added instructions to build with Makefile

.gitmodules

@@ -1,9 +1,9 @@
-[submodule "usrsctp"]
-	path = deps/usrsctp
-	url = https://github.com/sctplab/usrsctp.git
 [submodule "deps/plog"]
 	path = deps/plog
 	url = https://github.com/SergiusTheBest/plog
+[submodule "usrsctp"]
+	path = deps/usrsctp
+	url = https://github.com/paullouisageneau/usrsctp.git
 [submodule "deps/libjuice"]
 	path = deps/libjuice
 	url = https://github.com/paullouisageneau/libjuice

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required (VERSION 3.7)
 project (libdatachannel
 	DESCRIPTION "WebRTC Data Channels Library"
-	VERSION 0.4.0
+	VERSION 0.4.1
 	LANGUAGES CXX)
 
 option(USE_GNUTLS "Use GnuTLS instead of OpenSSL" OFF)
@@ -42,38 +42,13 @@ set(TESTS_ANSWERER_SOURCES
     ${CMAKE_CURRENT_SOURCE_DIR}/test/p2p/answerer.cpp
 )
 
-
-# Hack because usrsctp uses CMAKE_SOURCE_DIR instead of CMAKE_CURRENT_SOURCE_DIR
-set(CMAKE_REQUIRED_FLAGS "-I${CMAKE_CURRENT_SOURCE_DIR}/deps/usrsctp/usrsctplib")
-
-add_subdirectory(deps/usrsctp EXCLUDE_FROM_ALL)
-
-# Set include directory and custom options to make usrsctp compile with recent g++
-target_include_directories(usrsctp-static PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/deps/usrsctp/usrsctplib)
-
-if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-  # using regular Clang or AppleClang: Needed since they don't have -Wno-error=format-truncation
-  target_compile_options(usrsctp-static PRIVATE -Wno-error=address-of-packed-member)
-else()
-  if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
-    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "9.0")
-      # GCC version below 9.0 does not support option address-of-packed-member
-	  target_compile_options(usrsctp-static PRIVATE -Wno-error=format-truncation)
-	else()
-	  target_compile_options(usrsctp-static PRIVATE -Wno-error=address-of-packed-member -Wno-error=format-truncation)
-	endif()
-  else()
-    # all other compilers
-    target_compile_options(usrsctp-static PRIVATE -Wno-error=address-of-packed-member -Wno-error=format-truncation)
-  endif()
-endif()
-
-add_library(Usrsctp::Usrsctp ALIAS usrsctp)
-add_library(Usrsctp::UsrsctpStatic ALIAS usrsctp-static)
-
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
 
+add_subdirectory(deps/usrsctp EXCLUDE_FROM_ALL)
+add_library(Usrsctp::Usrsctp ALIAS usrsctp)
+add_library(Usrsctp::UsrsctpStatic ALIAS usrsctp-static)
+
 add_library(datachannel SHARED ${LIBDATACHANNEL_SOURCES})
 set_target_properties(datachannel PROPERTIES
 	VERSION ${PROJECT_VERSION}

README.md

@@ -17,13 +17,14 @@ The library aims at fully implementing WebRTC SCTP DataChannels ([draft-ietf-rtc
 - GnuTLS: https://www.gnutls.org/ or OpenSSL: https://www.openssl.org/
 
 Optional:
-- libnice: https://github.com/libnice/libnice (substituable with libjuice)
+- libnice: https://nice.freedesktop.org/ (substituable with libjuice)
 
 Submodules:
 - usrsctp: https://github.com/sctplab/usrsctp
 - libjuice: https://github.com/paullouisageneau/libjuice
 
 ## Building
+### Building with CMake (preferred)
 
 ```bash
 $ git submodule update --init --recursive
@@ -33,6 +34,13 @@ $ cmake -DUSE_JUICE=1 -DUSE_GNUTLS=1 ..
 $ make
 ```
 
+### Building directly with Make
+
+```bash
+$ git submodule update --init --recursive
+$ make USE_JUICE=1 USE_GNUTLS=1
+```
+
 ## Example
 
 In the following example, note the callbacks are called in another thread.