[CMake] Linking problem

Renaud Detry renaudjdetry at airpost.net
Wed Nov 7 04:58:53 EST 2007


On 07 Nov 2007, at 09:59, Salvatore Iovene wrote:

> On 11/7/07, Brandon Van Every <bvanevery at gmail.com> wrote:
>> On Nov 7, 2007 2:12 AM, Salvatore Iovene
>> <salvatore.iovene+cmake at googlemail.com> wrote:
>>> Hi,
>>> I'm not 100% sure this is really a CMake related question, but I'll
>>> fire it up anyway:
>>>
>>> I'm building a series of static libraries, name them liba.a, libb.a
>>> and libc.a, and linking them into a shared library libfoo.so.
>>>
>>> Then I'm building libx.a liby.a and libz.a and linking them into the
>>> shared libbar.so.
>>>
>>> Then I have an executable whatever.exe that's linked to to libfoo.so
>>> and libbar.so. The linking of the executable fails complaining of
>>> certain missing simbols. Some symbols from liba.a are missing in
>>> libbar.so.

Let's say that there's a symbol S in liba.a, that S is the only symbol
in its object, and that S is not used by libfoo. In Darwin, S will not
be included in libfoo, and the result you get is expectable. I don't
know if this simple explanation translates to Linux.

Renaud.





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