MongoDB example failure to compile with different flags - c++

Question

So I had a really strange compiler result after compiling the snippet provided by the MongoDB Quickstart (New Driver).
#include <iostream>
#include <bsoncxx/builder/stream/document.hpp>
#include <bsoncxx/json.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/instance.hpp>
int main(int, char**) {
mongocxx::instance inst{};
mongocxx::client conn{};
bsoncxx::builder::stream::document document{};
auto collection = conn["testdb"]["testcollection"];
document << "hello" << "world";
collection.insert_one(document.view());
auto cursor = collection.find({});
for (auto&& doc : cursor) {
std::cout << bsoncxx::to_json(doc) << std::endl;
}
}
The code compiles perfectly with
c++ --std=c++11 hellomongo.cpp -o hellomongo $(pkg-config --cflags --libs libmongocxx)
but failed to compile when I made a makefile and added some flags
CXX=g++
FLAGS=-v -Wall --std=c++11 -I/usr/local/include
EXENAME=matchingengine
SOURCES=main.cpp
OBJECTS=main.o
all: $(EXENAME)
$(EXENAME): $(OBJECTS)
$(CXX) $(FLAGS) $(SOURCES) -o $(EXENAME)
clean:
rm *o $(EXENAME)
I keep getting
main.cpp:3:10: fatal error: 'bsoncxx/builder/stream/document.hpp' file not found
Where i have adjusted the -I include directory pointing to the place where bsoncxx is located. Please help me on this compiler issue.

Answer 1

I solved it
Makefile
CXX=g++
CFLAGS=-c --std=c++11 -Wall -I/usr/local/include/mongocxx/v0.3 -I/usr/local/include/libmongoc-1.0 -I/usr/local/include/bsoncxx/v0.3 -I/usr/local/include/libbson-1.0
LDFLAGS=-L/usr/local/lib -lmongocxx -lbsoncxx
SOURCES=main.cpp
OBJECTS=main.o
EXECUTABLE=matchingengine
all: $(EXECUTABLE)
$(EXECUTABLE): $(OBJECTS)
$(CXX) $(OBJECTS) -o $(EXECUTABLE) $(LDFLAGS)
$(OBJECTS): $(SOURCES)
$(CXX) $(CFLAGS) -c $(SOURCES)