Add Known Issues section to readme (espeak not installed/linking error)

Operating System: Arch Linux KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.2-arch1-1 (64-bit) Graphics Platform: Wayland

Linking error:

Kokoros/target/release/deps/libespeak_rs_sys-b6cd091903adedc5.rlib(speech.c.o): in function dispatch_audio': speech.c:(.text.dispatch_audio+0xc2): undefined reference to audio_object_write' /usr/bin/ld: speech.c:(.text.dispatch_audio+0xd4): undefined reference to audio_object_strerror' /usr/bin/ld: speech.c:(.text.dispatch_audio+0x187): undefined reference to audio_object_open' /usr/bin/ld: speech.c:(.text.dispatch_audio+0x1d8): undefined reference to audio_object_open' /usr/bin/ld: speech.c:(.text.dispatch_audio+0x1f9): undefined reference to audio_object_close' /usr/bin/ld: speech.c:(.text.dispatch_audio+0x21c): undefined reference to audio_object_strerror' /usr/bin/ld: /home/f2/Documents/Shared/ProL/Rust/ai/Kokoros/target/release/deps/libespeak_rs_sys-b6cd091903adedc5.rlib(speech.c.o): in function cancel_audio': speech.c:(.text.cancel_audio+0x18): undefined reference to audio_object_flush' /usr/bin/ld: /home/f2/Documents/Shared/ProL/Rust/ai/Kokoros/target/release/deps/libespeak_rs_sys-b6cd091903adedc5.rlib(speech.c.o): in function espeak_ng_InitializeOutput': speech.c:(.text.espeak_ng_InitializeOutput+0x112): undefined reference to create_audio_device_object' /usr/bin/ld: /home/f2/Documents/Shared/ProL/Rust/ai/Kokoros/target/release/deps/libespeak_rs_sys-b6cd091903adedc5.rlib(speech.c.o): in function sync_espeak_Synth': speech.c:(.text.sync_espeak_Synth+0xe8): undefined reference to audio_object_drain' /usr/bin/ld: speech.c:(.text.sync_espeak_Synth+0x179): undefined reference to audio_object_flush' /usr/bin/ld: speech.c:(.text.sync_espeak_Synth+0x18f): undefined reference to audio_object_strerror' /usr/bin/ld: /home/f2/Documents/Shared/ProL/Rust/ai/Kokoros/target/release/deps/libespeak_rs_sys-b6cd091903adedc5.rlib(wavegen.c.o): in function WcmdqStop': wavegen.c:(.text.WcmdqStop+0x25): undefined reference to sonicDestroyStream' /usr/bin/ld: /home/f2/Documents/Shared/ProL/Rust/ai/Kokoros/target/release/deps/libespeak_rs_sys-b6cd091903adedc5.rlib(wavegen.c.o): in function WavegenFill': wavegen.c:(.text.WavegenFill+0xac4): undefined reference to sonicFlushStream' /usr/bin/ld: wavegen.c:(.text.WavegenFill+0xaea): undefined reference to sonicReadShortFromStream' /usr/bin/ld: wavegen.c:(.text.WavegenFill+0x2cac): undefined reference to sonicGetSpeed' /usr/bin/ld: wavegen.c:(.text.WavegenFill+0x2cda): undefined reference to sonicWriteShortToStream' /usr/bin/ld: wavegen.c:(.text.WavegenFill+0x2cf3): undefined reference to sonicFlushStream' /usr/bin/ld: wavegen.c:(.text.WavegenFill+0x2d04): undefined reference to sonicReadShortFromStream' /usr/bin/ld: wavegen.c:(.text.WavegenFill+0x2fd3): undefined reference to sonicSetSpeed' /usr/bin/ld: wavegen.c:(.text.WavegenFill+0x314a): undefined reference to sonicCreateStream' collect2: error: ld returned 1 exit status

OR

Kokoros/target/release/deps/libespeak_rs_sys-b6cd091903adedc5.rlib(speech.c.o): undefined reference to symbol 'create_audio_device_object' /usr/bin/ld: /usr/lib/libpcaudio.so.0: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status

Solution (fish shell):

set -x RUSTFLAGS "-L /usr/lib -l espeak-ng -l sonic -l pcaudio"

Possibly Related issues: https://github.com/bootphon/phonemizer/issues/163 https://github.com/bootphon/phonemizer/issues/44 https://github.com/hexgrad/kokoro/issues/101 https://github.com/espeak-ng/espeak-ng/issues/935 https://github.com/open-mmlab/Amphion/issues/297