At Tue, 21 Nov 2006 07:34:07 -0600,
r10 kindsofpeople wrote:
>
> First, let me apologize a second time...I thought I had found this thread on
> Alsa-user, but in fact it was posted to alsa-cvslog. I imagine it was more
> than a bit confusing without the context of the rest of the thread.
>
> The bulk of that message was:
> -----------------------------------------
> -lm -ldl -lpthread are _not_ needed in Libs (since the alsa interface
> doesn't depend on libm, libdl or libpthread interface) and just bring
> unneeded dependencies. These should rather be put in Libs.private:
>
> Libs: -L${libdir} -lasound
> Libs.private: -lm -ldl -lpthread
>
> See ALSA bug#2212 .
> -----------------------------------------
> and what follows after that was a difference file for making these changes
> to alsa.pc.in
>
> I'm trying to build the library to run on a uClinux target that apparently
> does not support libdl. But when I build the alsa library with
> --disable-shared --enable-static it still terminates when it can't find
> libdl.
Do you mean the build of alsa-lib itself? Then alsa.pc is
irrelevant. It must be in src/Makefile.am. Try to remove -ldl
there.
Takashi
>
> And as you indicate, when I remove all references to -lm -ldl -pthread in
> the configuration files, the build terminates with undefined references.
>
> Any help with building the alsa to run under uCLinux would be greatly
> appreciated.
>
> John
>
> >From: Benoit Fouet <[EMAIL PROTECTED]>
> >To: r10 kindsofpeople <[EMAIL PROTECTED]>
> >CC: [email protected]
> >Subject: Re: [Alsa-user] alsa-lib: alsa.pc's Libs shouldn't contain -lm
> >-ldl -lpthread
> >Date: Tue, 21 Nov 2006 09:24:12 +0100
> >
> >Hi,
> >
> >r10 kindsofpeople wrote:
> > > Please forgive my ignorance, but how can I work around this?
> > >
> > > I tried editing utils/alsa.pc.in as you indicate and re-running
> >./configure,
> > > with no change.
> > >
> > > John
> > >
> >if you build alsa library without those linkage, you'll have undefined
> >reference to some functions (and btw your library will not be built):
> >
> >gcc -g -O2 -o .libs/aserver aserver.o ../src/.libs/libasound.so
> >../src/.libs/libasound.so: undefined reference to `log'
> >../src/.libs/libasound.so: undefined reference to `sqrt'
> >../src/.libs/libasound.so: undefined reference to `pthread_create'
> >../src/.libs/libasound.so: undefined reference to `sqrtf'
> >../src/.libs/libasound.so: undefined reference to `dladdr'
> >../src/.libs/libasound.so: undefined reference to `dlclose'
> >../src/.libs/libasound.so: undefined reference to `rint'
> >../src/.libs/libasound.so: undefined reference to `fmod'
> >../src/.libs/libasound.so: undefined reference to `dlopen'
> >../src/.libs/libasound.so: undefined reference to `pow'
> >../src/.libs/libasound.so: undefined reference to `log10'
> >../src/.libs/libasound.so: undefined reference to `dlsym'
> >../src/.libs/libasound.so: undefined reference to `exp'
> >../src/.libs/libasound.so: undefined reference to `pthread_mutex_trylock'
> >../src/.libs/libasound.so: undefined reference to `pthread_join'
> >
> >pthread_* => libpthread
> >dl* => libdl
> >others => libm
> >
> >why do you want to remove those dependencies ?
> >
> >Hope that helps you,
> >
> >Ben
> >
>
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