build: remove unnecessary dependency on protobuf

Change-Id: I1443710479945e5a24bc63f1418d4c7db813ff79
Refs: #2475

README.md

@@ -37,8 +37,6 @@ Required:
 
 * [ndn-cxx and its dependencies](http://named-data.net/doc/ndn-cxx/)
 * Boost libraries
-* `protobuf` library
-* log4cxx (optional, if enabled with `--with-log4cxx` configure option)
 
 ### Build
 

tests/unit-tests/test-socket.cpp

@@ -98,7 +98,7 @@ public:
   fetchAll(const vector<MissingDataInfo>& v)
   {
     // std::cerr << "fetchAll" << std::endl;
-    for (int i = 0; i < v.size(); i++) {
+    for (size_t i = 0; i < v.size(); i++) {
       for(SeqNo s = v[i].low; s <= v[i].high; ++s) {
         socket.fetchData(v[i].session, s, [this] (const shared_ptr<const Data>& dataPacket) {
             this->set(dataPacket);
@@ -111,7 +111,7 @@ public:
   fetchNumbers(const vector<MissingDataInfo> &v)
   {
     // std::cerr << "fetchNumbers" << std::endl;
-    for (int i = 0; i < v.size(); i++) {
+    for (size_t i = 0; i < v.size(); i++) {
       for(SeqNo s = v[i].low; s <= v[i].high; ++s) {
         socket.fetchData(v[i].session, s, [this] (const shared_ptr<const Data>& dataPacket) {
             this->setNum(dataPacket);

wscript

@@ -9,7 +9,7 @@ APPNAME = 'ChronoSync'
 def options(opt):
     opt.load(['compiler_c', 'compiler_cxx', 'gnu_dirs'])
     opt.load(['boost', 'doxygen', 'sphinx_build', 'default-compiler-flags',
-              'pch', 'protoc'],
+              'pch'],
              tooldir=['.waf-tools'])
 
     syncopt = opt.add_option_group ("ChronoSync Options")
@@ -23,7 +23,7 @@ def options(opt):
 
 def configure(conf):
     conf.load(['compiler_c', 'compiler_cxx', 'gnu_dirs', 'boost', 'pch',
-               'doxygen', 'sphinx_build', 'default-compiler-flags', 'protoc'])
+               'doxygen', 'sphinx_build', 'default-compiler-flags'])
 
     conf.check_cfg(package='libndn-cxx', args=['--cflags', '--libs'],
                    uselib_store='NDN_CXX', mandatory=True)