“Multiple definition”, “first defined here” errors

Question

I have 3 projects: Server, Client and Commons. Making header & source pairs in Commons doesn\'t cause any problems and I can access t

Answer 1

I am adding this A because I got caught with a bizarre version of this which really had me scratching my head for about a hour until I spotted the root cause. My load was failing because of multiple repeats of this format

/linit.o:(.rodata1.libs+0x50): multiple definition of `lua_lib_BASE'
/linit.o:(.rodata1.libs+0x50): first defined here

I turned out to be a bug in my Makefile magic where I had a list of C files and using vpath etc., so the compiles would pick them up from the correct directory in hierarchy. However one C file was repeated in the list, at the end of one line and the start of the next so the gcc load generated by the make had the .o file twice on the command line. Durrrrh. The multiple definitions were from multiple occurances of the same file. The linker ignored duplicates apart from static initialisers!