Add Windows/MinGW support#430
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- Update Makefile with platform detection for Windows/MinGW/MSYS2 - Add HML_WINDOWS preprocessor macro - Configure Windows-specific libraries (-lws2_32, no -ldl) - Set up platform-specific LDFLAGS - Add Windows compatibility to runtime builtins - Windows socket abstraction (Winsock2 initialization, closesocket) - Directory iteration via FindFirstFile/FindNextFile - Dynamic library loading via LoadLibrary/GetProcAddress - Clock/time functions using Windows API - Compatibility macros for POSIX functions (access, getcwd, etc.) - Add Windows compatibility to interpreter builtins - Signal handling using signal() instead of sigaction() - Platform-specific includes and function mappings - realpath() implementation via GetFullPathNameA - Add Windows compatibility to compiler codegen - basename/dirname implementations for Windows - open_memstream fallback using tmpfile - Update test runner to skip Windows-incompatible tests - Signal tests, fork tests, Unix socket tests, termios tests - Platform detection for MSYS/MinGW/Cygwin - Add docs/WINDOWS_SUPPORT.md with build instructions and API docs https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Add windows-test job: runs interpreter tests with MSYS2/MinGW - Add windows-compiler job: builds and tests the compiler - Add windows-parity job: runs parity tests on Windows - Add build-windows job to release workflow: creates Windows release package - Include MinGW runtime DLLs (libgcc, libwinpthread, libffi) in Windows release - Update release notes with Windows quick start and platform notes https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Use LoadLibrary/GetProcAddress/FreeLibrary on Windows instead of dlopen/dlsym/dlclose - Add Windows library path translation (libc.so.6 -> msvcrt.dll, .so -> .dll) - Use platform-agnostic hml_lib_handle_t type for library handles - Proper error handling with Windows error codes https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Add get_executable_path() helper function that works on Windows, macOS, and Linux
- Use GetModuleFileNameA on Windows instead of readlink("/proc/self/exe")
- Use _NSGetExecutablePath on macOS
- Replace all direct readlink calls with the portable helper
https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- compiler/main.c: Add Windows compatibility for access, unlink, close, popen - context.c: Add Windows compatibility for getcwd - parser/module.c: Add Windows compatibility for getcwd - modules/modules.c: Add Windows compatibility for GetModuleFileNameA, access, getcwd, dirname https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Avoid naming conflict with Windows' TokenType defined in winnt.h. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
MinGW provides ssize_t via sys/types.h, no need to redefine it. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
sigset_t, sigfillset, and pthread_sigmask are not available on Windows. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Windows doesn't have realpath - use GetFullPathNameA instead. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Windows doesn't have getline - provide a compatible implementation. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Windows uses Sleep() in milliseconds instead of nanosleep/usleep. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
The runtime library has its own Makefile which was missing Windows/MinGW platform detection and the -DHML_WINDOWS flag. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
MinGW already provides nanosleep and struct timespec via time.h. Only keep usleep compatibility wrapper. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
MinGW provides usleep via unistd.h, no need to define it. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Replace POSIX DIR/dirent/opendir/readdir/closedir with hml_dir_t/hml_dirent_t/hml_opendir/hml_readdir/hml_closedir which work on both Windows and POSIX systems. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
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- Add setenv/unsetenv wrappers using _putenv_s - Add Windows stubs for getppid, getuid, geteuid, getgid, getegid - Add WIFEXITED/WEXITSTATUS macros for Windows - Add Windows CreateProcess implementation for exec() and exec_argv() - Add Windows TerminateProcess implementation for kill() - Add error returns for fork(), wait(), waitpid() on Windows https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Remove duplicate getppid/getuid/etc macros from env.c (already in internal.h) - Add fcntl.h include for Windows (provides O_RDONLY, O_WRONLY, etc.) - Add open/_open and lseek/_lseek mappings for Windows https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Remove nanosleep/clock_gettime definitions (MinGW pthreads provides them) - Remove POLLIN/POLLOUT redefinitions (MinGW winsock2.h provides them) - Remove ssize_t typedef (MinGW corecrt.h provides it) - Use hml_dirent_t instead of struct dirent in runtime and interpreter https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Wrap POSIX socket headers in #ifndef HML_WINDOWS - Replace close() with hml_closesocket() for socket file descriptors - Add Windows ioctlsocket() for non-blocking mode (replaces fcntl) https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Cast setsockopt value pointer to (const char*) for Windows - Use DWORD milliseconds for socket timeouts on Windows (instead of struct timeval) https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Add Windows implementations for system information functions: - builtin_arch(): Use GetNativeSystemInfo() - builtin_username(): Use GetUserNameA() and USERNAME env var - builtin_homedir(): Use USERPROFILE and HOMEDRIVE/HOMEPATH - builtin_cpu_count(): Use GetSystemInfo() - builtin_total_memory(): Use GlobalMemoryStatusEx() - builtin_free_memory(): Use GlobalMemoryStatusEx() - builtin_os_version(): Use GetVersionExA() - builtin_os_name(): Return "Windows" - builtin_uptime(): Use GetTickCount64() - builtin_tmpdir(): Use GetTempPathA() as fallback Wrap POSIX headers (sys/utsname.h, pwd.h) in #ifndef HML_WINDOWS. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
POSIX regex (regex.h) is not available on Windows/MinGW, so add stub implementations that return errors indicating regex is not supported. The regex functions now: - Return errors on Windows indicating unsupported feature - Continue to use POSIX regex on Unix/macOS https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
poll.h is not available on Windows - poll functionality comes from winsock2.h which is already included via internal.h. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Interpreter (registration.c): - Wrap POSIX-only signal constants (SIGHUP, SIGQUIT, etc.) in #ifndef HML_WINDOWS - Keep common signals (SIGINT, SIGTERM, SIGABRT) available on all platforms Runtime (builtins_internal.h): - Add stat compatibility (sys/stat.h, S_ISREG, S_ISDIR) for Windows Runtime (builtins_io.c): - Add Windows implementations for system info functions: - hml_arch(): Use GetNativeSystemInfo() - hml_username(): Use GetUserNameA() and USERNAME env var - hml_homedir(): Use USERPROFILE and HOMEDRIVE/HOMEPATH - hml_cpu_count(): Use GetSystemInfo() - hml_total_memory(): Use GlobalMemoryStatusEx() - hml_free_memory(): Use GlobalMemoryStatusEx() - hml_os_version(): Use GetVersionExA() - hml_os_name(): Return "Windows" - hml_uptime(): Use GetTickCount64() - hml_tmpdir(): Use GetTempPathA() as fallback - Update hml_list_dir() to use platform-agnostic hml_opendir/readdir/closedir https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
gettimeofday() is not available on Windows. Use GetSystemTimeAsFileTime() instead, which returns time in 100-nanosecond intervals since 1601. Convert to milliseconds since Unix epoch for consistent behavior. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
The interpreter's io/file_methods.c uses getline() which is not available on Windows. Add a Windows-compatible hml_getline() implementation to the interpreter's internal.h header. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Reorder includes: winsock2.h must come before windows.h to avoid warnings - Remove duplicate hml_getline definition (now provided by ../internal.h) https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
…tions builtins_internal.h: - Add #ifndef guards for S_ISREG and S_ISDIR (MinGW already provides them) builtins_process.c: - Add Windows compatibility macros: WIFEXITED, WEXITSTATUS - Add Windows pipe compatibility using _pipe() - Add stub macros for waitpid, wait, kill, fork (return -1) - Add hml_setenv and hml_unsetenv using _putenv_s - Use basic signal() function on Windows instead of sigaction() https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
strndup() is not available on Windows. Add a Windows-compatible hml_strndup() implementation for the LSP handlers. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Add Windows socket includes (winsock2.h, ws2tcpip.h) - Define STDIN_FILENO and STDOUT_FILENO for Windows - Map close() to closesocket() for socket handles - Wrap POSIX socket headers in #ifndef HML_WINDOWS https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Cast setsockopt arg to (const char *) for Windows API compatibility - Move winsock2.h/ws2tcpip.h includes to parent internal.h - Remove duplicate winsock includes from builtins internal.h - This fixes the 'include winsock2.h before windows.h' warnings https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Add hml_strndup implementation for Windows - Wrap unistd.h include in #ifndef HML_WINDOWS https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Add hml_realpath implementation using _fullpath for Windows - Wrap _XOPEN_SOURCE in #ifndef HML_WINDOWS https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Add hml_realpath implementation using _fullpath for Windows https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Cast setsockopt arg to (const char *) for Windows API compatibility https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
On Windows/MSYS2, backslashes in paths were being interpreted as escape sequences when displayed via echo. Using printf '%s' avoids this issue and displays paths correctly. https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
- Add socket_error_msg() helper that uses WSAGetLastError() on Windows - Replace all strerror(errno) with socket_error_msg() for socket ops - Add WinSock initialization (WSAStartup) before socket/DNS operations - This fixes 'No error' messages and DNS resolution failures on Windows https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn
Resolved conflicts: - runtime/Makefile: Keep Windows platform guard for zlib/OpenSSL checks - runtime/src/builtins_internal.h: Add inttypes.h include (dlfcn.h handled via Windows compat layer) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add OpenSSL to Windows LDFLAGS in runtime/Makefile - Add ECDSA version check - requires OpenSSL 3.0+ (stub for older versions) - Fix hml_dirname to find correct last separator with mixed / and \ paths - Fix Windows absolute path detection (C:\ style) in module resolver - These fixes resolve module imports and stdlib loading on Windows Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Update Makefile with platform detection for Windows/MinGW/MSYS2
Add Windows compatibility to runtime builtins
Add Windows compatibility to interpreter builtins
Add Windows compatibility to compiler codegen
Update test runner to skip Windows-incompatible tests
Add docs/WINDOWS_SUPPORT.md with build instructions and API docs
https://claude.ai/code/session_01YL2nKyNmSwkQ7DicdGCrvn