8000 [Cygwin/MinGW] Fix link error for missing import libraries by carlo-bramini · Pull Request #446 · aubio/aubio · GitHub
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[Cygwin/MinGW] Fix link error for missing import libraries - #446

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[Cygwin/MinGW] Fix link error for missing import libraries#446
carlo-bramini wants to merge 1 commit into
aubio:masterfrom
carlo-bramini:fix-mingw-cygwin-build

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@carlo-bramini
@carlo-bramini carlo-bramini commented Sep 18, 2026
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I compiled aulib for Cygwin and MinGW but it failed to perforn the final link of the executable.
This messages appeared on the console:

[124/187] Linking C shared library src/cygaubio-5.4.8.dll
FAILED: [code=1] src/cygaubio-5.4.8.dll src/libaubio.dll.a
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x2e9): undefined reference to `FLAC__stream_encoder_new'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x343): undefined reference to `FLAC__stream_encoder_set_verify'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x362): undefined reference to `FLAC__stream_encoder_set_compression_level'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x385): undefined reference to `FLAC__stream_encoder_set_channels'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x3a4): undefined reference to `FLAC__stream_encoder_set_bits_per_sample'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x3c6): undefined reference to `FLAC__stream_encoder_set_sample_rate'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x465): undefined reference to `FLAC__metadata_object_new'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x4bb): undefined reference to `FLAC__metadata_object_new'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x519): undefined reference to `FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x555): undefined reference to `FLAC__metadata_object_vorbiscomment_append_comment'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x5c8): undefined reference to `FLAC__stream_encoder_set_metadata'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x61d): undefined reference to `FLAC__stream_encoder_init_file'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x817): undefined reference to `FLAC__stream_encoder_process_interleaved'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0x82b): undefined reference to `FLAC__stream_encoder_get_state'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0xac5): undefined reference to `FLAC__stream_encoder_finish'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0xadc): undefined reference to `FLAC__stream_encoder_get_state'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0xb32): undefined reference to `FLAC__stream_encoder_delete'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0xb6b): undefined reference to `FLAC__metadata_object_delete'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.text+0xb9c): undefined reference to `FLAC__metadata_object_delete'
ld: src/CMakeFiles/aubio.dir/io/sink_flac.c.o:sink_flac.c:(.rdata$.refptr.FLAC__StreamEncoderStateString[.refptr.FLAC__StreamEncoderStateString]+0x0): undefined reference to `FLAC__StreamEncoderStateString'
ld: src/CMakeFiles/aubio.dir/io/sink_sndfile.c.o:sink_sndfile.c:(.text+0x3c3): undefined reference to `sf_open'
ld: src/CMakeFiles/aubio.dir/io/sink_sndfile.c.o:sink_sndfile.c:(.text+0x3e2): undefined reference to `sf_strerror'
ld: src/CMakeFiles/aubio.dir/io/sink_sndfile.c.o:sink_sndfile.c:(.text+0x598): undefined reference to `sf_write_float'
ld: src/CMakeFiles/aubio.dir/io/sink_sndfile.c.o:sink_sndfile.c:(.text+0x704): undefined reference to `sf_write_float'
ld: src/CMakeFiles/aubio.dir/io/sink_sndfile.c.o:sink_sndfile.c:(.text+0x786): undefined reference to `sf_close'
ld: src/CMakeFiles/aubio.dir/io/sink_sndfile.c.o:sink_sndfile.c:(.text+0x794): undefined reference to `sf_strerror'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x15c): undefined reference to `ogg_stream_clear'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x16e): undefined reference to `vorbis_block_clear'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x180): undefined reference to `vorbis_dsp_clear'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x192): undefined reference to `vorbis_comment_clear'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x1a4): undefined reference to `vorbis_info_clear'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x2c6): undefined reference to `vorbis_info_init'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x307): undefined reference to `vorbis_encode_init_vbr'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x33e): undefined reference to `vorbis_comment_init'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x361): undefined reference to `vorbis_comment_add_tag'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x384): undefined reference to `vorbis_analysis_init'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x3a7): undefined reference to `vorbis_block_init'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x3d2): undefined reference to `ogg_stream_init'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x406): undefined reference to `vorbis_analysis_headerout'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x41d): undefined reference to `ogg_stream_packetin'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x434): undefined reference to `ogg_stream_packetin'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x44b): undefined reference to `ogg_stream_packetin'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x46c): undefined reference to `ogg_stream_flush'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x710): undefined reference to `vorbis_analysis'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x722):
8000
 undefined reference to `vorbis_bitrate_addblock'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x73f): undefined reference to `ogg_stream_packetin'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x75a): undefined reference to `ogg_stream_pageout'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x77e): undefined reference to `ogg_page_eos'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x79f): undefined reference to `vorbis_bitrate_flushpacket'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x7c0): undefined reference to `vorbis_analysis_blockout'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x830): undefined reference to `vorbis_analysis_buffer'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x8e3): undefined reference to `vorbis_analysis_wrote'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0x98e): undefined reference to `vorbis_analysis_buffer'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0xa47): undefined reference to `vorbis_analysis_wrote'
ld: src/CMakeFiles/aubio.dir/io/sink_vorbis.c.o:sink_vorbis.c:(.text+0xaa6): undefined reference to `vorbis_analysis_wrote'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0xae): undefined reference to `av_url_split'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x26e): undefined reference to `avformat_network_init'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x29f): undefined reference to `avformat_open_input'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x2c5): undefined reference to `av_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x33c): undefined reference to `avformat_find_stream_info'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x362): undefined reference to `av_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x4bf): undefined reference to `avcodec_find_decoder'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x4d5): undefined reference to `avcodec_alloc_context3'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x4fb): undefined reference to `av_get_media_type_string'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x561): undefined reference to `avcodec_parameters_to_context'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x585): undefined reference to `av_get_media_type_string'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x5c0): undefined reference to `avcodec_open2'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x5e6): undefined reference to `av_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x6cf): undefined reference to `av_frame_alloc'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x70c): undefined reference to `av_packet_alloc'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x74e): undefined reference to `av_malloc'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x845): undefined reference to `swr_alloc'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x867): undefined reference to `av_channel_layout_default'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x882): undefined reference to `av_channel_layout_default'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x8a8): undefined reference to `av_opt_set_chlayout'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x8ce): undefined reference to `av_opt_set_chlayout'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x8f9): undefined reference to `av_opt_set_int'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x924): undefined reference to `av_opt_set_int'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x957): undefined reference to `av_opt_set_int'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x979): undefined reference to `av_opt_set_int'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x988): undefined reference to `swr_init'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x9ae): undefined reference to `av_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0xaea): undefined reference to `av_read_frame'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0xb2f): undefined reference to `av_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0xb9d): undefined reference to `avcodec_send_packet'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0xbf5): undefined reference to `avcodec_receive_frame'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0xd65): undefined reference to `swr_convert'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0xdc2): undefined reference to `av_packet_unref'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x1481): undefined reference to `avformat_seek_file'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x14e0): undefined reference to `swr_close'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x14f0): undefined reference to `swr_init'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x15e1): undefined reference to `swr_close'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x15f1): undefined reference to `swr_free'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x161a): undefined reference to `avcodec_free_context'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x1643): undefined reference to `avformat_close_input'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x166c): undefined reference to `av_packet_unref'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x16ac): undefined reference to `av_free'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x16d5): undefined reference to `av_frame_free'
ld: src/CMakeFiles/aubio.dir/io/source_avcodec.c.o:source_avcodec.c:(.text+0x16fe): undefined reference to `av_packet_free'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0x13f): undefined reference to `sf_open'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0x15e): undefined reference to `sf_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0x5b4): undefined reference to `sf_read_float'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0x8a5): undefined reference to `sf_read_float'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0xc16): undefined reference to `sf_seek'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0xc2b): undefined reference to `sf_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0xc6f): undefined reference to `sf_strerror'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0xce7): undefined reference to `sf_close'
ld: src/CMakeFiles/aubio.dir/io/source_sndfile.c.o:source_sndfile.c:(.text+0xcf5): undefined reference to `sf_strerror'
ld: src/CMakeFiles/aubio.dir/temporal/resampler.c.o:resampler.c:(.text+0x3c): undefined reference to `src_new'
ld: src/CMakeFiles/aubio.dir/temporal/resampler.c.o:resampler.c:(.text+0x55): undefined reference to `src_strerror'
ld: src/CMakeFiles/aubio.dir/temporal/resampler.c.o:resampler.c:(.text+0xd9): undefined reference to `src_delete'
ld: src/CMakeFiles/aubio.dir/temporal/resampler.c.o:resampler.c:(.text+0x18a): undefined reference to `src_process'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x11d): undefined reference to `rubberband_new'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x13c): undefined reference to `rubberband_set_max_process_size'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x16f): undefined reference to `rubberband_get_latency'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x18c): undefined reference to `rubberband_get_latency'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x19f): undefined reference to `rubberband_available'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x1de): undefined reference to `rubberband_process'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x1ee): undefined reference to `rubberband_available'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x24d): undefined reference to `rubberband_delete'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x27c): undefined reference to `rubberband_get_latency'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x2de): undefined reference to `rubberband_set_pitch_scale'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x466): undefined reference to `rubberband_process'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x476): undefined reference to `rubberband_available'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x4a3): undefined reference to `rubberband_retrieve'
ld: src/CMakeFiles/aubio.dir/effects/pitchshift_rubberband.c.o:pitchshift_rubberband.c:(.text+0x4cd): undefined reference to `rubberband_available'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x18c): undefined reference to `rubberband_new'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x1f1): undefined reference to `rubberband_delete'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x230): undefined reference to `rubberband_get_latency'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x2d2): undefined reference to `rubberband_set_time_ratio'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x3d2): undefined reference to `rubberband_set_pitch_scale'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x562): undefined reference to `rubberband_process'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x572): undefined reference to `rubberband_available'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x59a): undefined reference to `rubberband_available'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x5c4): undefined reference to `rubberband_available'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x5f3): undefined reference to `rubberband_retrieve'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x625): undefined reference to `rubberband_retrieve'
ld: src/CMakeFiles/aubio.dir/effects/timestretch_rubberband.c.o:timestretch_rubberband.c:(.text+0x6b0): undefined reference to `rubberband_reset'
collect2: error: ld returned 1 exit status

Actually there are no libraries on the command line of the final call for running the linker.
This happens because target_link_libraries is missing into add_optional_dependency after calling pkg_check_modules.
Attached patch fixes this issue.

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@carlo-bramini
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