c - GCC flags during linking -

c - GCC flags during linking -

is there situation in flags such -ansi, -wall, , -pedantic might relevant during linking part of process?

what -o optimization flags? relevant during compile steps or relevant during linking?

thanks!

in practice, no - in theory, -ansi dialect option, conceivably impact linking. i've seen similar behaviour older versions of clang utilize libc++ or libstdc++, when using c++11 or c++03 respectively. find easier set these flags in cc variable: cc = gcc -std=c99 or cc = gcc -std=c90 (ansi).

i invoke c++ (or c) $cxx or $cc out of habit. , passed default configure scripts.

i'm not aware of beingness issue c, long abi , calling conventions haven't changed. c++, on other hand, requires changes c++ runtime back upwards new language features. in either case, it's compiler invokes linker relevant libraries.

c gcc compilation linker