Support building for Amiga with CMake

.github/workflows/ci.yml

@@ -121,13 +121,15 @@ jobs:
     strategy:
       matrix:
         amiga:
-        # - { name: "AmigaOS 3", host: "m68k-amigaos", system: "amigaos3" }
-        - { name: "AmigaOS 4", host: "ppc-amigaos", system: "amiga" }
+        # - { name: "AmigaOS 3", host: "m68k-amigaos", cmake-flags: -DM68K_CRT=nix20 }
+        - { name: "AmigaOS 4", host: "ppc-amigaos", cmake-flags: -DPPC_CRT=newlib }
 
     steps:
     - uses: actions/checkout@v3
+    - name: Configure
+      run: cmake -B build/ -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} ${{ matrix.amiga.cmake-flags }} .
     - name: Build
-      run: make SYSTEM=${{ matrix.amiga.system }} CROSS=${{ matrix.amiga.host }}-
+      run: cmake --build build/ --config ${{env.BUILD_TYPE}} --parallel
     - uses: actions/upload-artifact@v3
       with:
         name: arcem-${{ matrix.amiga.host }}

CMakeLists.txt

@@ -69,6 +69,17 @@ set(ARCEM_X_SOURCES
 	X/pseudo.c
 	X/true.c
 )
+set(ARCEM_AMIGA_SOURCES
+	amiga/arexx.c
+	amiga/arexx.h
+	amiga/ControlPane.c
+	amiga/DispKbd.c
+	amiga/filecalls.c
+	amiga/filecalls_internal.h
+	amiga/KeyTable.h
+	amiga/platform.h
+	amiga/wb.c
+)
 set(ARCEM_VC_SOURCES
 	vc/dirent.h
 )
@@ -86,6 +97,8 @@ set(ARCEM_WIN_SOURCES
 
 if(WIN32)
 	set(DEFAULT_SYSTEM "win")
+elseif(AMIGA)
+	set(DEFAULT_SYSTEM "amiga")
 elseif(UNIX AND NOT APPLE AND NOT HAIKU)
 	set(DEFAULT_SYSTEM "X")
 else()
@@ -146,6 +159,29 @@ elseif(${SYSTEM} STREQUAL "X")
 		find_package(Threads REQUIRED)
 		target_link_libraries(Threads::Threads)
 	endif()
+elseif(${SYSTEM} STREQUAL "amiga")
+	option(SOUND_SUPPORT "Build with sound support" ON)
+	if(SOUND_SUPPORT)
+		add_definitions(-DSOUND_SUPPORT)
+		list(APPEND ARCEM_AMIGA_SOURCES amiga/sound.c)
+	endif()
+
+	add_executable(arcem ${ARCEM_SOURCES} ${ARCEM_ARCH_SOURCES} ${ARCEM_INIH_SOURCES} ${ARCEM_AMIGA_SOURCES})
+	target_include_directories(arcem PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/amiga)
+	target_compile_definitions(arcem PRIVATE SYSTEM_amiga)
+
+	if(AMIGAOS4)
+		target_compile_definitions(arcem PRIVATE __USE_INLINE__)
+
+		option(ONCHIPMEM_SUPPORT "Build with on-chip memory support" OFF)
+		if(ONCHIPMEM_SUPPORT)
+			# The following line is for onchipmem support, which should speed
+			# the emulator up but slows it down, so it is disabled by default
+			target_compile_definitions(arcem PRIVATE ONCHIPMEM_SUPPORT)
+		endif()
+	endif()
+
+	# TODO: Build arcempanel
 elseif(${SYSTEM} STREQUAL "win")
 	option(SOUND_SUPPORT "Build with sound support" ON)
 	if(SOUND_SUPPORT)
@@ -194,6 +230,7 @@ source_group(src FILES ${ARCEM_SOURCES})
 source_group(src\\arch FILES ${ARCEM_ARCH_SOURCES})
 source_group(src\\X FILES ${ARCEM_X_SOURCES})
 source_group(src\\SDL FILES ${ARCEM_SDL_SOURCES})
+source_group(src\\amiga FILES ${ARCEM_AMIGA_SOURCES})
 source_group(src\\vc FILES ${ARCEM_VC_SOURCES})
 source_group(src\\win FILES ${ARCEM_WIN_SOURCES})
 source_group(libs\\inih FILES ${ARCEM_INIH_SOURCES})