Re: C++ Static library fails to link for some code, relocatable object works fine
Re: C++ Static library fails to link for some code, relocatable object works fine
- Subject: Re: C++ Static library fails to link for some code, relocatable object works fine
- From: Peter O'Gorman <email@hidden>
- Date: Mon, 14 Jul 2008 15:23:15 -0500
Adam Zegelin wrote:
> Hi,
>
> I'm trying to build a project that uses sqlite3x, a C++ wrapper for
> SQLite3. I've created a new "sqlite3" static library target which
> includes all the sqlite3 and sqlite3x source files. This target is then
> added as a dependency of the main application (Cocoa) target, and the
> static lib product is added to the "Linked Libraries" list in the target
> settings of the main target.
>
> The project fails to link. I've been working on this for hours, and
> gave up, eventually stripping my main.mm file down to
>
> #include "../sqlite3x/sqlite3x.hpp"
>
> int main(int argc, char *argv[])
> {
> sqlite3x::sqlite3_connection c;
> }
>
> That shows the problem perfectly. ld spits out:
>
> Undefined symbols:
> "__ZN8sqlite3x18sqlite3_connectionC1Ev", referenced from:
> _main in main.o
> "__ZN8sqlite3x18sqlite3_connectionD1Ev", referenced from:
> _main in main.o
> _main in main.o
> ld: symbol(s) not found
>
> Yet the output of `nm libsqlite3.a` shows the symbols defined:
The linker is likely picking /usr/lib/libsqlite3.dylib in preference to
your libsqlite3.a. See the "static to override dylib" thread.
Peter
--
Peter O'Gorman
http://pogma.com
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