trojan: Fix boost 1.89 ver build.

boost 1.89 versions: Boost.System is now a header-only library.

trojan/Makefile

@@ -23,6 +23,7 @@ PKG_MAINTAINER:=GreaterFire
 
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk
+include ./boost-version.mk
 
 TARGET_CXXFLAGS += -Wall -Wextra
 TARGET_CXXFLAGS += $(FPIC)
@@ -57,7 +58,8 @@ define Package/trojan
   URL:=https://github.com/trojan-gfw/trojan
   DEPENDS:= \
     +libpthread +libstdcpp +libopenssl \
-    +boost +boost-system +boost-program_options +boost-date_time
+    +boost +boost-program_options +boost-date_time \
+    $(if $(filter y,$(NEED_BOOST_SYSTEM)),,+boost-system)
 endef
 
 define Package/trojan/install

trojan/boost-version.mk

@@ -0,0 +1,12 @@
+# boost-version.mk
+BOOST_MAKEFILE := $(firstword $(shell find -L $(TOPDIR) -type f -path "*/boost/Makefile"))
+
+BOOST_PKG_VERSION := $(shell grep '^PKG_VERSION:=' $(BOOST_MAKEFILE) | head -n1 | cut -d= -f2)
+
+BOOST_VER_MAJOR := $(word 1,$(subst ., ,$(BOOST_PKG_VERSION)))
+BOOST_VER_MINOR := $(word 2,$(subst ., ,$(BOOST_PKG_VERSION)))
+BOOST_VER_PATCH := $(word 3,$(subst ., ,$(BOOST_PKG_VERSION)))
+
+BOOST_VERSION_CODE := $(shell echo $$(($(BOOST_VER_MAJOR)*100000 + $(BOOST_VER_MINOR)*100 + $(BOOST_VER_PATCH))))
+
+NEED_BOOST_SYSTEM := $(if $(shell [ $(BOOST_VERSION_CODE) -ge 108900 ] && echo y),y,n)

trojan/patches/001-force-openssl-version.patch

@@ -0,0 +1,11 @@
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -43,7 +43,7 @@ if(MSVC)
+     add_definitions(-DBOOST_DATE_TIME_NO_LIB)
+ endif()
+ 
+-find_package(OpenSSL 1.1.0 REQUIRED)
++find_package(OpenSSL 1.1.1 REQUIRED)
+ include_directories(${OPENSSL_INCLUDE_DIR})
+ target_link_libraries(trojan ${OPENSSL_LIBRARIES})
+ if(OPENSSL_VERSION VERSION_GREATER_EQUAL 1.1.1)

trojan/patches/002-Fix-boost1.89-build.patch

@@ -0,0 +1,101 @@
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -36,7 +36,13 @@ set(THREADS_PREFER_PTHREAD_FLAG ON)
+ find_package(Threads REQUIRED)
+ target_link_libraries(trojan ${CMAKE_THREAD_LIBS_INIT})
+ 
+-find_package(Boost 1.66.0 REQUIRED COMPONENTS system program_options)
++find_package(Boost 1.66.0 REQUIRED)
++if(Boost_VERSION LESS 108900)
++    find_package(Boost 1.66.0 REQUIRED COMPONENTS system program_options)
++else()
++    find_package(Boost 1.66.0 REQUIRED COMPONENTS program_options)
++endif()
++
+ include_directories(${Boost_INCLUDE_DIR})
+ target_link_libraries(trojan ${Boost_LIBRARIES})
+ if(MSVC)
+--- a/src/core/service.cpp
++++ b/src/core/service.cpp
+@@ -36,6 +36,9 @@
+ #include "session/natsession.h"
+ #include "ssl/ssldefaults.h"
+ #include "ssl/sslsession.h"
++#if BOOST_VERSION >= 108900
++#include <boost/system.hpp>
++#endif
+ using namespace std;
+ using namespace boost::asio::ip;
+ using namespace boost::asio::ssl;
+--- a/src/main.cpp
++++ b/src/main.cpp
+@@ -28,6 +28,9 @@
+ #endif // ENABLE_MYSQL
+ #include "core/service.h"
+ #include "core/version.h"
++#if BOOST_VERSION >= 108900
++#include <boost/system.hpp>
++#endif
+ using namespace std;
+ using namespace boost::asio;
+ namespace po = boost::program_options;
+--- a/src/session/clientsession.cpp
++++ b/src/session/clientsession.cpp
+@@ -21,6 +21,9 @@
+ #include "proto/trojanrequest.h"
+ #include "proto/udppacket.h"
+ #include "ssl/sslsession.h"
++#if BOOST_VERSION >= 108900
++#include <boost/system.hpp>
++#endif
+ using namespace std;
+ using namespace boost::asio::ip;
+ using namespace boost::asio::ssl;
+--- a/src/session/forwardsession.cpp
++++ b/src/session/forwardsession.cpp
+@@ -20,6 +20,9 @@
+ #include "forwardsession.h"
+ #include "proto/trojanrequest.h"
+ #include "ssl/sslsession.h"
++#if BOOST_VERSION >= 108900
++#include <boost/system.hpp>
++#endif
+ using namespace std;
+ using namespace boost::asio::ip;
+ using namespace boost::asio::ssl;
+--- a/src/session/natsession.cpp
++++ b/src/session/natsession.cpp
+@@ -20,6 +20,9 @@
+ #include "natsession.h"
+ #include "proto/trojanrequest.h"
+ #include "ssl/sslsession.h"
++#if BOOST_VERSION >= 108900
++#include <boost/system.hpp>
++#endif
+ using namespace std;
+ using namespace boost::asio::ip;
+ using namespace boost::asio::ssl;
+--- a/src/session/serversession.cpp
++++ b/src/session/serversession.cpp
+@@ -20,6 +20,9 @@
+ #include "serversession.h"
+ #include "proto/trojanrequest.h"
+ #include "proto/udppacket.h"
++#if BOOST_VERSION >= 108900
++#include <boost/system.hpp>
++#endif
+ using namespace std;
+ using namespace boost::asio::ip;
+ using namespace boost::asio::ssl;
+--- a/src/session/udpforwardsession.cpp
++++ b/src/session/udpforwardsession.cpp
+@@ -23,6 +23,9 @@
+ #include "ssl/sslsession.h"
+ #include "proto/trojanrequest.h"
+ #include "proto/udppacket.h"
++#if BOOST_VERSION >= 108900
++#include <boost/system.hpp>
++#endif
+ using namespace std;
+ using namespace boost::asio::ip;
+ using namespace boost::asio::ssl;