At Fri, 16 Mar 2007 15:18:04 +0100, I wrote: > > At Fri, 16 Mar 2007 06:17:00 -0700 (PDT), > Ciaccia wrote: > > > > Hi there, > > I would like to compile an alsa application for an > > embedded system with no shared-libraries support. My > > application just needs PCM, with no plug-ins, no mixer > > and no midi and the application should be a standalone > > executable with no external dependencies, otherwise it > > will not work. > > > > I tried to compile alsa-lib with static support, but > > without luck (-ldl is always needed in the gcc line > > and gcc always prints some weird warnings). Since I > > don't need external plugins nor ladspa, I think there > > should be a way to compile an application in a 100% > > static manner, but I still have to figure out how. > > > > I also found this thread with a similar problem with > > uClinux > > http://www.mail-archive.com/alsa-user@xxxxxxxxxxxxxxxxxxxxx/msg18253.html > > but at the end I did not understand how/if the problem > > was solved. > > > > Do you think it should be possible to compile alsa-lib > > with no dependencies on dl? How? > > > > Otherwise, would it be possible to write an alsa > > application that does not rely on alsa-lib (i.e., > > by using the alsa kernel APIs directly)? Has someone > > already tried it? Some hints? > > > > Every hint is extremely welcome > > I worked on this sometime ago, and made a patch to build alsa-lib > without pthread and libdl. I don't remember why this wasn't applied. > IIRC, ulibc has the wrappers for pthread and libdl, so this wasn't > needed at that time in the end. > > Otherwise, it should work. Build with --enable-static > --disable-shared, --disble-mixer, --disable-hwdep, etc. ... oh, not perfectly if really no pcm plugin is used. The patch below fixes the build problem. Already applied to HG tree. Takashi diff -r f1203eb7eb48 configure.in --- a/configure.in Tue Mar 13 10:44:28 2007 +0100 +++ b/configure.in Fri Mar 16 15:18:21 2007 +0100 @@ -371,6 +371,7 @@ fi dnl Create PCM plugin symbol list for static library rm -f "$srcdir"/src/pcm/pcm_symbols_list.c +touch "$srcdir"/src/pcm/pcm_symbols_list.c for t in $PCM_PLUGIN_LIST; do if eval test \$build_pcm_$t = yes; then echo \&_snd_module_pcm_$t, >> "$srcdir"/src/pcm/pcm_symbols_list.c ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
