Fix CI build

Author: polpo

.github/workflows/build.yml

@@ -13,11 +13,25 @@ jobs:
         PICO_EXTRAS_PATH: ${{github.workspace}}/pico/pico-extras
         OUTPUT_DIR: ${{github.workspace}}/binaries
       steps:
+      # Act is a utility for testing github actions locally. Only run when in act.
+      - name: Install Act dependencies
+        if: ${{ env.ACT }}
+        run: apt-get update && sudo apt-get install curl build-essential cmake -y
+
       - name: Checkout repo with submodules
         uses: actions/checkout@v4
         with:
             submodules: recursive
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.13'
+          cache: 'pip' # caching pip dependencies
+
+      - name: Install Python dependencies
+        run: pip install sympy scipy more-itertools
+
       - name: Install Arm GNU Toolchain (arm-none-eabi-gcc)
         uses: carlosperate/arm-none-eabi-gcc-action@v1
         with:
@@ -93,7 +107,7 @@ jobs:
         uses: open-watcom/setup-watcom@v0
         with:
           version: "2.0-64"
-          tag: "2024-03-01-Build"
+          tag: "2025-07-01-Build"
 
       - name: Build pgusinit
         working-directory: ${{github.workspace}}/pgusinit

sw/CMakeLists.txt

@@ -281,7 +281,10 @@ function(build_adlib TARGET_NAME MULTIFW)
     set(SOUND_OPL TRUE)
     config_target(${TARGET_NAME} ${MULTIFW})
     pico_set_program_name(${TARGET_NAME} "picogus-adlib")
-    target_sources(${TARGET_NAME} PRIVATE sbplay.cpp)  
+    target_sources(${TARGET_NAME} PRIVATE
+        sbplay.cpp
+        audio_i2s_minimal.c
+    )  
     target_link_libraries(${TARGET_NAME} resampler)
 endfunction()
 

sw/multifw/uf2create/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.29)
+cmake_minimum_required(VERSION 3.22)
 project(uf2create)
 
 set(CMAKE_C_STANDARD 11)

sw/sbplay.cpp

@@ -188,9 +188,9 @@ void play_adlib() {
     printf("opl_ratio: %x ", opl_ratio);
     uint32_t opl_pos = 0;
 
-    // Initialize OPL samples
-
+#ifdef CDROM
     cd_fifo = cdrom_audio_fifo_peek(&cdrom);
+#endif
 
     // Use the PWM peripheral to trigger an IRQ at 44100Hz
 #if !AUDIO_CALLBACK_CORE0