steveQuadros / g-LinkingLearning

Learning about g++ by linking folly

Learnings

• Install folly library brew install folly
• includes using -I flag need to follow the directory structure
  • ex. files in: mathutil/include/add.hpp, when compiling with g++ -I. demo/src/main.cpp add.o -lfolly --std=c++17 you would need to use #include <mathutil/include/add.hpp>
• use the -v flag to see includes directories
• FINAL WORKING compilation:
  • had to keep tracing the ld: missing symbols and finding which library in /opt/home/includes had that symbol, then -l linking the library
  • compile mathutils into .o file: g++ -c -I./ mathutils/src/add.cpp -o add.o -v
  • g++ -I. demo/src/main.cpp add.o -lfolly --std=c++17 -v -lglog -lboost_context-mt -o main