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Re: about order of the libraries at link time


"Lijuan Hai" <hailijuan@gmail.com> writes:

>   g++ always add "-lstdc++ -lm" before any other libraries at link
> time. I want to link the libraries after libc.so. but I haven't found
> where to change the order in gcc sources. so could you provide any
> helpful hints on it? thanks in advance.

gcc/cp/g++spec.c.

To be precise g++ adds "-lstdc++ -lm" after almost all libraries but
before "-lc".  This is normally correct as -lstdc++ depends on -lc,
therefore -lc must follow -lstdc++.  If you want to have -lstdc++
after -lc, you will need to use a --start-group (assuming you are
using the GNU linker).  Admittedly g++ is probably going to mess up a
--start-group which involves -lc, although I haven't tried it.

Ian


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