Add CMake build files

src/sound/CMakeLists.txt

@@ -0,0 +1,30 @@
+add_library(snd OBJECT sound.c openal.c snd_opl.c snd_opl_nuked.c snd_resid.cc
+	midi.c midi_system.c snd_speaker.c snd_pssj.c snd_lpt_dac.c
+	snd_lpt_dss.c snd_adlib.c snd_adlibgold.c snd_ad1848.c snd_audiopci.c
+	snd_azt2316a.c snd_cms.c snd_gus.c snd_sb.c snd_sb_dsp.c snd_emu8k.c
+	snd_mpu401.c snd_sn76489.c snd_ssi2001.c snd_wss.c snd_ym7128.c)
+
+if(FLUIDSYNTH)
+	target_compile_definitions(snd PRIVATE USE_FLUIDSYNTH)
+	target_sources(snd PRIVATE midi_fluidsynth.c)
+endif()
+
+if(MUNT)
+	target_compile_definitions(snd PRIVATE USE_MUNT)
+	target_sources(snd PRIVATE midi_mt32.c)
+
+	add_subdirectory(munt)
+	target_link_libraries(86Box mt32emu)
+endif()
+
+if(PAS16)
+	target_compile_definitions(snd PRIVATE USE_PAS16)
+	target_sources(snd PRIVATE snd_pas16.c)
+endif()
+
+if(GUSMAX)
+	target_compile_definitions(snd PRIVATE USE_GUSMAX)
+endif()
+
+add_subdirectory(resid-fp)
+target_link_libraries(86Box resid-fp)

src/sound/munt/CMakeLists.txt

@@ -0,0 +1,11 @@
+add_library(mt32emu STATIC Analog.cpp BReverbModel.cpp File.cpp FileStream.cpp
+	LA32Ramp.cpp LA32FloatWaveGenerator.cpp LA32WaveGenerator.cpp
+	MidiStreamParser.cpp Part.cpp Partial.cpp PartialManager.cpp
+	Poly.cpp ROMInfo.cpp SampleRateConverter.cpp
+	srchelper/srctools/src/FIRResampler.cpp
+	srchelper/srctools/src/IIR2xResampler.cpp
+	srchelper/srctools/src/LinearResampler.cpp
+	srchelper/srctools/src/ResamplerModel.cpp
+	srchelper/srctools/src/SincResampler.cpp
+	srchelper/InternalResampler.cpp	Synth.cpp Tables.cpp TVA.cpp TVF.cpp
+	TVP.cpp sha1/sha1.cpp c_interface/c_interface.cpp)

src/sound/resid-fp/CMakeLists.txt

@@ -0,0 +1,4 @@
+add_library(resid-fp STATIC convolve-sse.cc convolve.cc envelope.cc extfilt.cc
+	filter.cc pot.cc sid.cc voice.cc wave.cc wave6581_PST.cc
+	wave6581_PS_.cc wave6581_P_T.cc wave6581__ST.cc wave8580_PST.cc
+	wave8580_PS_.cc wave8580_P_T.cc wave8580__ST.cc)