On Thu, Dec 2, 2010 at 11:37 AM, Ian Lance Taylor <i...@google.com> wrote: > "H.J. Lu" <hjl.to...@gmail.com> writes: > >> g++ adds -lm since libstdc++ uses libm. If we do it in gcc, we may >> add run-time dependency on libm.so to all C programs even if they >> don't use libm at all. > > No. All the gcc driver has to do is: *if* -lm is used on the link line, > also add it after the use of --plugin-callback.
How many libraries specified at command line do we have to check? How do we handle -Wl, -Wl,-Bstatic/-Wl,-Bdynamic,-Wl,--start-group, .... and other linker switches? -- H.J.
