On Mar 11, 2008, Basile STARYNKEVITCH <[EMAIL PROTECTED]> wrote: >> * Basile STARYNKEVITCH wrote on Tue, Mar 11, 2008 at 09:18:54PM CET:
>>> I would like to use this tool to compile some (generated) >>> warm(basilys.c file into a warm-basilys.la in the most portable >>> way (on Linux/ELF systems I would just use gcc -fPIC -shared >>> warm-basilys.c -o warm-basilys.so and use the warm-basilys.so >>> shared library to dlopen). > I need all this in the gcc/ subdir, since I want cc1 (the same process) to > 1. generate a C file > 2. compile it to some dynamically loadable stuff (*.so on Linux/Elf, > perhaps *.la with libtool) > 3. lt_dlopenext it Erhm... You can't even count on having functional dynamic libraries, let alone dlopen. libtool will try to minimize the impact of these absences with the -dlopen flag, that will link the wanted library into the main executable, such that libltdl will pretend to dlopen and look up symbols. Given lack of dlopen, it's not possible to accommodate dlopening emulation of libraries created after the executable, which is what you're after. libtool and libltdl won't help you in these cases. You probably don't care about them, though. I'm not sure when the library you have in mind is supposed to be built. If it's to be built as part of the GCC build process, then there's no reason I can think of to depend on dlopen in the first place. Simply linking it into GCC should be nearly the same, unless you depend on dynamic symbol lookup, which could be easily emulated. But if the library is to be build as part of the *use* of GCC, then things get much trickier. libtool is not designed for this kind of use, although you could in theory build and install a libtool that will work along with the compiler, but there are many caveats. I don't think I'd recommend going down this path, but if this is your case, I can elaborate further. -- Alexandre Oliva http://www.lsd.ic.unicamp.br/~oliva/ FSF Latin America Board Member http://www.fsfla.org/ Red Hat Compiler Engineer [EMAIL PROTECTED], gcc.gnu.org} Free Software Evangelist [EMAIL PROTECTED], gnu.org}
