configure.ac:30: installing './compile' configure.ac:15: installing './config.guess' configure.ac:15: installing './config.sub' configure.ac:16: installing './install-sh' configure.ac:16: installing './missing' alsalisp/Makefile.am: installing './depcomp' parallel-tests: installing './test-driver' ar: `u' modifier ignored since `D' is the default (see `U') ar: `u' modifier ignored since `D' is the default (see `U') pcm_share.c: In function ‘_snd_pcm_share_missing’: pcm_share.c:293:5: warning: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Wunused-result] read(share->slave_socket, buf, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pcm_share.c:295:5: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result] write(share->client_socket, buf, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pcm_share.c:298:5: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result] write(share->slave_socket, buf, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pcm_share.c:300:5: warning: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Wunused-result] read(share->client_socket, buf, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pcm_share.c: In function ‘snd_pcm_share_thread’: pcm_share.c:408:5: warning: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Wunused-result] read(pfd[0].fd, buf, 1); ^~~~~~~~~~~~~~~~~~~~~~~ In file included from pcm_dmix.c:146:0: pcm_dmix_x86_64.c: In function ‘mix_select_callbacks’: pcm_dmix_x86_64.c:91:5: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(line, sizeof(line), in); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ar: `u' modifier ignored since `D' is the default (see `U') ar: `u' modifier ignored since `D' is the default (see `U') ar: `u' modifier ignored since `D' is the default (see `U') ar: `u' modifier ignored since `D' is the default (see `U') ar: `u' modifier ignored since `D' is the default (see `U') ar: `u' modifier ignored since `D' is the default (see `U') libtool: warning: relinking 'libatopology.la' CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY ALSA lib pcm_hw.c:1829:(_snd_pcm_hw_open) Invalid value for card