drop gcc 4.7 support

Makefile.linux

@@ -15,7 +15,7 @@ ifeq ($(shell expr match $(CXX) 'clang'),5)
 	NEEDED_CXXFLAGS += -std=c++11
 else ifeq ($(shell expr match ${CXXVER} "4\.[0-9][0-9]"),4) # gcc >= 4.10
 	NEEDED_CXXFLAGS += -std=c++11
-else ifeq ($(shell expr match ${CXXVER} "4\.[7-9]"),3) # gcc 4.7 - 4.9
+else ifeq ($(shell expr match ${CXXVER} "4\.[8-9]"),3) # gcc 4.8 - 4.9
 	NEEDED_CXXFLAGS += -std=c++11 -D_GLIBCXX_USE_NANOSLEEP=1
 else ifeq ($(shell expr match ${CXXVER} "[5-6]"),1) # gcc 5 - 6
 	NEEDED_CXXFLAGS += -std=c++11

daemon/I2PControl.cpp

@@ -1,11 +1,3 @@
-/*
-* Copyright (c) 2013-2020, The PurpleI2P Project
-*
-* This file is part of Purple i2pd project and licensed under BSD3
-*
-* See full license text in LICENSE file at top of project tree
-*/
-
 #include <stdio.h>
 #include <sstream>
 #include <openssl/x509.h>
@@ -14,12 +6,7 @@
 #include <boost/date_time/local_time/local_time.hpp>
 #include <boost/date_time/posix_time/posix_time.hpp>
 #include <boost/property_tree/ini_parser.hpp>
-
-// There is bug in boost 1.49 with gcc 4.7 coming with Debian Wheezy
-#define GCC47_BOOST149 ((BOOST_VERSION == 104900) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 7))
-#if !GCC47_BOOST149
 #include <boost/property_tree/json_parser.hpp>
-#endif
 
 #include "Crypto.h"
 #include "FS.h"
@@ -88,7 +75,8 @@ namespace client
 		m_RouterInfoHandlers["i2p.router.net.bw.outbound.1s"] = &I2PControlService::OutboundBandwidth1S;
 		m_RouterInfoHandlers["i2p.router.net.status"]         = &I2PControlService::NetStatusHandler;
 		m_RouterInfoHandlers["i2p.router.net.tunnels.participating"] = &I2PControlService::TunnelsParticipatingHandler;
-		m_RouterInfoHandlers["i2p.router.net.tunnels.successrate"]   = &I2PControlService::TunnelsSuccessRateHandler;
+		m_RouterInfoHandlers["i2p.router.net.tunnels.successrate"] =
+&I2PControlService::TunnelsSuccessRateHandler;
 		m_RouterInfoHandlers["i2p.router.net.total.received.bytes"]  = &I2PControlService::NetTotalReceivedBytes;
 		m_RouterInfoHandlers["i2p.router.net.total.sent.bytes"]      = &I2PControlService::NetTotalSentBytes;
 
@@ -242,12 +230,6 @@ namespace client
 					}
 				}
 				std::ostringstream response;
-#if GCC47_BOOST149
-				LogPrint (eLogError, "I2PControl: json_read is not supported due bug in boost 1.49 with gcc 4.7");
-				response << "{\"id\":null,\"error\":";
-				response << "{\"code\":-32603,\"message\":\"JSON requests is not supported with this version of boost\"},";
-				response << "\"jsonrpc\":\"2.0\"}";
-#else
 				boost::property_tree::ptree pt;
 				boost::property_tree::read_json (ss, pt);
 
@@ -267,7 +249,6 @@ namespace client
 					response << "{\"code\":-32601,\"message\":\"Method not found\"},";
 					response << "\"jsonrpc\":\"2.0\"}";
 				}
-#endif
 				SendResponse (socket, buf, response, isHtml);
 			}
 			catch (std::exception& ex)

libi2pd/Destination.cpp

@@ -603,9 +603,8 @@ namespace client
 				return;
 			}
 			auto s = shared_from_this ();
-			// we must capture this for gcc 4.7 due the bug
 			RequestLeaseSet (ls->GetStoreHash (),
-				[s, ls, this](std::shared_ptr<const i2p::data::LeaseSet> leaseSet)
+				[s, ls](std::shared_ptr<const i2p::data::LeaseSet> leaseSet)
 				{
 					if (leaseSet)
 					{