CFLAGS & LDFLAGS documentation somewhere?
https://forum.golangbridge.org/t/cflags-ldflags-documentation-somewhere/4520CFLAGS、CXXFLAGS、LDFLAGS与LIBS
https://blog.csdn.net/SoaringLee_fighting/article/details/65448010
How to use LDFLAGS in makefile
https://stackoverflow.com/questions/13249610/how-to-use-ldflags-in-makefile