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vosk_ex

0.2.1
0.2.1 0.1.2 0.1.1 0.1.0

Elixir bindings for Vosk API - offline speech recognition. Automatically downloads precompiled libraries, no system dependencies required!

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vosk_ex Makefile.win
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Makefile.win 

# Windows Makefile for VoskEx NIF

# Uses nmake with Microsoft Visual C++ or MinGW



# Platform-specific settings for Windows

NATIVE_DIR = windows-x86_64

LIB_EXT = dll



# Directories - MIX_APP_PATH is set by elixir_make

!ifndef MIX_APP_PATH

MIX_APP_PATH = _build\dev\lib\vosk_ex

!endif



BUILD_DIR = $(MIX_APP_PATH)\priv

NATIVE_LIB_DIR = priv\native\$(NATIVE_DIR)

# Put NIF in same directory as Vosk DLLs so Windows can find dependencies

TARGET = $(BUILD_DIR)\native\$(NATIVE_DIR)\vosk_nif.dll

SOURCES = c_src\vosk_nif.c



# Erlang include path - must be set by environment or found manually

# You can set ERLANG_PATH manually or elixir_make will try to detect it

!ifndef ERLANG_PATH

# Try common Erlang installation paths

!if exist("C:\Program Files\Erlang OTP\erts-14.2.5\include")

ERLANG_PATH = C:\Program Files\Erlang OTP\erts-14.2.5\include

!else if exist("C:\Program Files\erl-26.2.5\erts-14.2.5\include")

ERLANG_PATH = C:\Program Files\erl-26.2.5\erts-14.2.5\include

!else

ERLANG_PATH = $(ERTS_INCLUDE_DIR)

!endif

!endif



# ============================================================================

# Compiler Detection and Configuration

# ============================================================================



# Check if cl.exe (MSVC) is available

!if [where cl.exe >nul 2>&1] == 0

USE_MSVC = 1

!else

USE_MSVC = 0

!endif



!if $(USE_MSVC) == 1

# ============================================================================

# Microsoft Visual C++ compiler

# ============================================================================

CC = cl

CFLAGS = /O2 /DWIN32 /I"$(ERLANG_PATH)" /Ic_src\include /LD /MD /nologo

LDFLAGS = /link /LIBPATH:"$(NATIVE_LIB_DIR)" libvosk.lib /nologo

COMPILE_CMD = $(CC) $(CFLAGS) $(SOURCES) /Fe:$(TARGET) $(LDFLAGS)

!else

# ============================================================================

# MinGW/GCC compiler (from MSYS2 or similar)

# ============================================================================

CC = gcc

CFLAGS = -O3 -std=c11 -shared -I"$(ERLANG_PATH)" -Ic_src/include -DWIN32

LDFLAGS = -L"$(NATIVE_LIB_DIR)" -lvosk -Wl,--enable-auto-import

COMPILE_CMD = $(CC) $(CFLAGS) -o $(TARGET) $(SOURCES) $(LDFLAGS)

!endif



# Vosk library download settings

VOSK_VERSION = 0.3.45



# ============================================================================

# Build targets

# ============================================================================



all: create_dirs download_vosk copy_libs compile



# Create necessary directories

create_dirs:

	@if not exist "$(NATIVE_LIB_DIR)" mkdir "$(NATIVE_LIB_DIR)"

	@if not exist "$(BUILD_DIR)" mkdir "$(BUILD_DIR)"

	@if not exist "$(BUILD_DIR)\native" mkdir "$(BUILD_DIR)\native"

	@if not exist "$(BUILD_DIR)\native\$(NATIVE_DIR)" mkdir "$(BUILD_DIR)\native\$(NATIVE_DIR)"



# Download Vosk library if not present

download_vosk:

	@if not exist "$(NATIVE_LIB_DIR)\libvosk.dll" powershell -NoProfile -ExecutionPolicy Bypass -File download_vosk.ps1 -Version $(VOSK_VERSION) -TargetDir $(NATIVE_LIB_DIR)



# Copy Vosk library files to build directory (same dir as NIF for Windows DLL search)

copy_libs:

	@if exist "$(NATIVE_LIB_DIR)\libvosk.dll" copy /Y "$(NATIVE_LIB_DIR)\libvosk.dll" "$(BUILD_DIR)\native\$(NATIVE_DIR)\" >nul

	@if exist "$(NATIVE_LIB_DIR)\libvosk.lib" copy /Y "$(NATIVE_LIB_DIR)\libvosk.lib" "$(BUILD_DIR)\native\$(NATIVE_DIR)\" >nul

	@if exist "$(NATIVE_LIB_DIR)\libgcc_s_seh-1.dll" copy /Y "$(NATIVE_LIB_DIR)\libgcc_s_seh-1.dll" "$(BUILD_DIR)\native\$(NATIVE_DIR)\" >nul

	@if exist "$(NATIVE_LIB_DIR)\libstdc++-6.dll" copy /Y "$(NATIVE_LIB_DIR)\libstdc++-6.dll" "$(BUILD_DIR)\native\$(NATIVE_DIR)\" >nul

	@if exist "$(NATIVE_LIB_DIR)\libwinpthread-1.dll" copy /Y "$(NATIVE_LIB_DIR)\libwinpthread-1.dll" "$(BUILD_DIR)\native\$(NATIVE_DIR)\" >nul



# Compile the NIF

compile: $(TARGET)



$(TARGET): $(SOURCES)

	@echo.

	@echo Compiling VoskEx NIF...

!if $(USE_MSVC) == 1

	@echo Compiler: Microsoft Visual C++ (cl.exe)

!else

	@echo Compiler: MinGW GCC

!endif

	@echo ERLANG_PATH: $(ERLANG_PATH)

	@echo.

	$(COMPILE_CMD)

	@echo.

	@echo Build complete: $(TARGET)

	@echo.



# Clean build artifacts

clean:

	@if exist "$(TARGET)" del /F /Q "$(TARGET)"

	@if exist "$(BUILD_DIR)\*.obj" del /F /Q "$(BUILD_DIR)\*.obj"

	@if exist "$(BUILD_DIR)\*.exp" del /F /Q "$(BUILD_DIR)\*.exp"

	@if exist "$(BUILD_DIR)\*.lib" del /F /Q "$(BUILD_DIR)\*.lib"

	@echo Cleaned build artifacts.



.PHONY: all create_dirs download_vosk copy_libs compile clean