Fix Windows build issues with GCC PATH and CMake configuration

- Update configure-atari800.sh to ensure MinGW-w64 tools are in PATH
- Fix create-minimal-makefile.sh to use correct PATH for Windows builds
- Update CMakeLists.txt verification commands to use broader PATH
- Ensure both /mingw64/bin and /usr/bin are accessible in MSYS2 environment

These changes address the "gcc not found" and CMake configuration errors
encountered in GitHub Actions Windows builds.

Author: pedgarcia

CMakeLists.txt

@@ -76,12 +76,12 @@ if(WIN32)
     # Use msys2 shell environment with proper PATH for MinGW gcc
     if(MSYS2_BASH MATCHES "msys2\.(cmd|CMD)$")
         # GitHub Actions setup-msys2 wrapper
-        set(ATARI800_CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} -c "export PATH='/mingw64/bin:$PATH' && cd '<SOURCE_DIR>' && '${CMAKE_CURRENT_SOURCE_DIR}/scripts/configure-atari800.sh' '<SOURCE_DIR>'")
-        set(ATARI800_BUILD_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} -c "export PATH='/mingw64/bin:$PATH' && cd '<SOURCE_DIR>' && make -j4")
+        set(ATARI800_CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} -c "export PATH='/mingw64/bin:/usr/bin:$PATH' && cd '<SOURCE_DIR>' && '${CMAKE_CURRENT_SOURCE_DIR}/scripts/configure-atari800.sh' '<SOURCE_DIR>'")
+        set(ATARI800_BUILD_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} -c "export PATH='/mingw64/bin:/usr/bin:$PATH' && cd '<SOURCE_DIR>' && make -j4")
     else()
         # Traditional bash.exe
-        set(ATARI800_CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} --login -c "export PATH='/mingw64/bin:$PATH' && cd '<SOURCE_DIR>' && '${CMAKE_CURRENT_SOURCE_DIR}/scripts/configure-atari800.sh' '<SOURCE_DIR>'")
-        set(ATARI800_BUILD_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} --login -c "export PATH='/mingw64/bin:$PATH' && cd '<SOURCE_DIR>' && make -j4")
+        set(ATARI800_CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} --login -c "export PATH='/mingw64/bin:/usr/bin:$PATH' && cd '<SOURCE_DIR>' && '${CMAKE_CURRENT_SOURCE_DIR}/scripts/configure-atari800.sh' '<SOURCE_DIR>'")
+        set(ATARI800_BUILD_COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} --login -c "export PATH='/mingw64/bin:/usr/bin:$PATH' && cd '<SOURCE_DIR>' && make -j4")
     endif()
 else()
     # Unix/macOS: Use native tools
@@ -132,7 +132,7 @@ if(WIN32)
         COMMAND ${CMAKE_COMMAND} -E echo "=== Verifying libatari800 build on Windows ==="
         COMMAND ${CMAKE_COMMAND} -E echo "Expected library: ${ATARI800_LIBRARY}"
         COMMAND ${CMAKE_COMMAND} -E echo "Checking if library exists..."
-        COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} -c "export PATH='/mingw64/bin:$PATH' && if [ -f '${ATARI800_LIBRARY}' ]; then echo 'SUCCESS: libatari800.a exists'; ls -la '${ATARI800_LIBRARY}'; else echo 'ERROR: libatari800.a missing'; ls -la '${ATARI800_SOURCE_DIR}/src/'; fi"
+        COMMAND ${CMAKE_COMMAND} -E env MSYSTEM=MSYS ${MSYS2_BASH} -c "export PATH='/mingw64/bin:/usr/bin:$PATH' && if [ -f '${ATARI800_LIBRARY}' ]; then echo 'SUCCESS: libatari800.a exists'; ls -la '${ATARI800_LIBRARY}'; else echo 'ERROR: libatari800.a missing'; ls -la '${ATARI800_SOURCE_DIR}/src/'; fi"
         COMMENT "Verifying libatari800 library creation"
     )
 endif()

scripts/configure-atari800.sh

@@ -117,6 +117,12 @@ elif [[ "$OSTYPE" == "msys" ]] || [[ "$MSYSTEM" != "" ]]; then
     which automake || echo "automake not found"
     which autoreconf || echo "autoreconf not found"
 
+    # Ensure MinGW-w64 tools are in PATH
+    export PATH="/mingw64/bin:/usr/bin:$PATH"
+    echo "Updated PATH for MinGW-w64: $PATH"
+    which gcc || echo "gcc not found"
+    which g++ || echo "g++ not found"
+    
     # Ensure we're using MinGW-w64 compiler
     export CC=gcc
     export CXX=g++

scripts/create-minimal-makefile.sh

@@ -12,6 +12,12 @@ fi
 
 cd "$ATARI800_SRC_PATH"
 
+# Ensure MinGW-w64 tools are in PATH for Windows builds
+if [[ "$OSTYPE" == "msys" ]] || [[ "$MSYSTEM" != "" ]]; then
+    export PATH="/mingw64/bin:/usr/bin:$PATH"
+    echo "Updated PATH for MinGW-w64: $PATH"
+fi
+
 echo "Creating minimal Makefile for libatari800..."
 
 # Create a basic Makefile that compiles the essential files for libatari800