I've a couple questions about the behavior of libtool that I'm hoping someone will answer for me. I'm using libtool 1.5.22 on Linux/x86.
1) I have a situation as follows: I am building both static and shared versions of a library. This library depends on a third-party library, which may be either static or shared. If the third-party library is shared, everything seems to work as expected. If the third-party library is static, things work as I would expect when creating my static library: the third-party library is listed as a dependency in the .la file. However, when creating my shared library with a static third-party library, the behavior is rather confusing. Rather than just noting the third-party library as a dependency, libtool includes the text of the library in my dynamic library. Including the text of a static archive in my dynamic library makes the library no longer an (entirely) shared object, as it has a big chunk of non-PIC text. Also, this results in an unpleasant situation because the applications ultimately using my shared library typically also depend on other libraries that are dependent on the same third-party library. I understand that on some platforms (AIX?), dynamic libraries cannot have unresolved dependencies, making it necessary to include the static archive text in a dynamic library on those platforms. However, it seems like the wrong thing to do when it can be avoided. Why does libtool default to doing this on x86 and x86_64? Is there some easy way I can work around this without breaking the build on platforms that do not allow unresolved symbols in dynamic libraries? 2) I have a automake convenience library that is to be linked into my final library. libtool generates both PIC and non-PIC versions of the objects contained in the convenience library. It only uses the shared objects when creating the archive (.a) for the convenience library. It then uses the objects from the .a for the convenience library when creating both the static and shared versions of my final library. Why aren't the non-PIC convenience objects used for the static version of the final library? Did I miss something? thanks, - jason kraftcheck _______________________________________________ http://lists.gnu.org/mailman/listinfo/libtool
