Add speexdsp a Mumble dependency, distinct from speex

recipes/speexdsp/readme.md

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+# SpeexDSP Recipe - Windows Build Modernization
+
+This recipe packages the SpeexDSP library, a patent-free, Open Source/Free Software DSP library derived from Speex.
+This recipe has been modernized to use industry-standard Windows development tools (CMake + MSVC) instead of legacy MSYS2/autotools.
+https://conda-forge.org/docs/maintainer/knowledge_base/#moving-from-an-autotools-build-to-a-cmake-build
+
+While there is tooling to make autotools work on Windows, 
+I have found reworking the project to use CMake regardless of platform is clearer and gives consistent builds.
+There is an outstanding issue and branch which add CMake support.
+
+* https://gitlab.xiph.org/xiph/speexdsp/-/issues/17
+* https://gitlab.com/babeloff/speexdsp/-/tree/cmake
+
+The `src` files in this project are copied from that branch.

recipes/speexdsp/recipe.yaml

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+schema_version: 1
+
+context:
+  version: "1.2.1"
+
+package:
+  name: speexdsp
+  version: ${{ version }}
+
+source:
+  - url: https://gitlab.xiph.org/xiph/speexdsp/-/archive/SpeexDSP-${{ version }}/speexdsp-SpeexDSP-${{ version }}.tar.gz
+    sha256: d17ca363654556a4ff1d02cc13d9eb1fc5a8642c90b40bd54ce266c3807b91a7
+  - path: ./src/
+    target_directory: "./"
+
+build:
+  number: 0
+  script:
+    - if: win
+      then: |
+        cmake -GNinja -DBUILD_SHARED_LIBS=ON %CMAKE_ARGS% %SRC_DIR%
+        cmake --build . --config Release
+        cmake --install . --config Release
+      else: |
+        cmake -GNinja -DBUILD_SHARED_LIBS=ON $CMAKE_ARGS $SRC_DIR
+        cmake --build . --config Release
+        cmake --install . --config Release
+
+requirements:
+  build:
+    - ${{ compiler('cxx') }}
+    - ${{ compiler('c') }}
+    - ${{ stdlib('c') }}
+    - cmake
+    - ninja
+    - if: win
+      then:
+        - vs2022_win-64
+  host:
+    - if: linux
+      then:
+        - libgomp >=4.0
+  run:
+    - if: linux
+      then:
+        - libgomp >=4.0
+
+tests:
+  - package_contents:
+      lib:
+        - speexdsp
+      include:
+        - speex/speex_preprocess.h
+        - speex/speexdsp_config_types.h
+        - speex/speex_buffer.h
+        - speex/speex_echo.h
+        - speex/speex_jitter.h
+        - speex/speex_preprocess.h
+        - speex/speex_resampler.h
+        - speex/speexdsp_config_types.h
+        - speex/speexdsp_types.h
+
+      files:
+        exists:
+          - if: win
+            then:
+              - Library/lib/pkgconfig/speexdsp.pc
+              - Library/lib/cmake/speexdsp/speexdspConfig.cmake
+              - Library/lib/cmake/speexdsp/speexdspConfigVersion.cmake
+            else:
+              - lib/pkgconfig/speexdsp.pc
+              - lib/cmake/speexdsp/speexdspConfig.cmake
+              - lib/cmake/speexdsp/speexdspConfigVersion.cmake
+
+about:
+  homepage: https://speex.org/
+  summary: SpeexDSP is a patent-free, Open Source/Free Software DSP library derived from Speex
+  description: |
+    SpeexDSP is a patent-free, Open Source/Free Software DSP library derived from Speex.
+
+    It is designed to be a simple, small-footprint audio processing library that is
+    especially suitable for embedded applications. The library provides:
+
+    - Echo cancellation
+    - Noise reduction
+    - Automatic gain control
+    - Voice activity detection
+    - Resampling
+
+    SpeexDSP was split off from the main Speex project to allow more modular use
+    of the DSP functionality without requiring the codec components.
+
+    This package uses modern build tools:
+    - Unix/Linux: autotools (configure, make)
+    - Windows: CMake with MSVC (Visual Studio Build Tools)
+    - macOS: autotools with clang
+  license: BSD-3-Clause
+  license_file: COPYING
+  documentation: https://speex.org/docs/
+  repository: https://github.com/xiph/speexdsp
+
+extra:
+  recipe-maintainers:
+    - phreed
+  feedstock-name: speexdsp

recipes/speexdsp/src/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+
+project(speexdsp
+    VERSION 1.2.1
+    DESCRIPTION "speexdsp audio processing library"
+    LANGUAGES C
+)
+
+include(GNUInstallDirs)
+include(CheckIncludeFile)
+include(CheckTypeSize)
+include(CheckFunctionExists)
+include(TestBigEndian)
+
+option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
+option(USE_FIXED_POINT "Use fixed-point arithmetic" OFF)
+
+# Fixed vs. floating-point arithmetic (used by config.h.in via #cmakedefine)
+if(USE_FIXED_POINT)
+    set(FIXED_POINT 1)
+else()
+    set(FLOATING_POINT 1)
+endif()
+
+# Check for headers
+check_include_file(stdint.h HAVE_STDINT_H)
+check_include_file(alloca.h HAVE_ALLOCA_H)
+check_include_file(memory.h HAVE_MEMORY_H)
+check_include_file(strings.h HAVE_STRINGS_H)
+check_include_file(sys/stat.h HAVE_SYS_STAT_H)
+check_include_file(sys/types.h HAVE_SYS_TYPES_H)
+check_include_file(unistd.h HAVE_UNISTD_H)
+check_include_file(dlfcn.h HAVE_DLFCN_H)
+
+# Check for alloca
+check_function_exists(alloca HAVE_ALLOCA)
+if(HAVE_ALLOCA)
+    set(USE_ALLOCA 1)
+endif()
+
+# Check endianness
+test_big_endian(WORDS_BIGENDIAN)
+
+# Check sizes of integer types
+check_type_size("short" SIZEOF_SHORT)
+check_type_size("int"   SIZEOF_INT)
+check_type_size("long"  SIZEOF_LONG)
+
+# Set type definitions based on size checks
+if(SIZEOF_SHORT EQUAL 2)
+    set(SIZE16  "short")
+    set(USIZE16 "unsigned short")
+elseif(SIZEOF_INT EQUAL 2)
+    set(SIZE16  "int")
+    set(USIZE16 "unsigned int")
+else()
+    set(SIZE16  "int16_t")
+    set(USIZE16 "uint16_t")
+endif()
+
+if(SIZEOF_INT EQUAL 4)
+    set(SIZE32  "int")
+    set(USIZE32 "unsigned int")
+elseif(SIZEOF_LONG EQUAL 4)
+    set(SIZE32  "long")
+    set(USIZE32 "unsigned long")
+else()
+    set(SIZE32  "int32_t")
+    set(USIZE32 "uint32_t")
+endif()
+
+# Tell source files to include config.h
+add_compile_definitions(HAVE_CONFIG_H)
+
+# Generate config.h (replaces the autoconf-generated file)
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/config.h.in"
+    "${CMAKE_BINARY_DIR}/config.h"
+    @ONLY
+)
+
+# Generate speexdsp_config_types.h
+file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/include/speex")
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/speexdsp_config_types.h.in"
+    "${CMAKE_BINARY_DIR}/include/speex/speexdsp_config_types.h"
+    @ONLY
+)
+
+# Include directories
+include_directories(
+    ${CMAKE_SOURCE_DIR}/include
+    ${CMAKE_SOURCE_DIR}/libspeexdsp
+    ${CMAKE_BINARY_DIR}
+    ${CMAKE_BINARY_DIR}/include
+    ${CMAKE_BINARY_DIR}/include/speex
+)
+
+# Source files (exclude test programs)
+file(GLOB SPEEXDSP_SOURCES libspeexdsp/*.c)
+list(REMOVE_ITEM SPEEXDSP_SOURCES
+    ${CMAKE_SOURCE_DIR}/libspeexdsp/testdenoise.c
+    ${CMAKE_SOURCE_DIR}/libspeexdsp/testecho.c
+    ${CMAKE_SOURCE_DIR}/libspeexdsp/testjitter.c
+    ${CMAKE_SOURCE_DIR}/libspeexdsp/testresample.c
+    ${CMAKE_SOURCE_DIR}/libspeexdsp/testresample2.c
+)
+
+add_library(speexdsp ${SPEEXDSP_SOURCES})
+
+# On Windows, auto-export all symbols so an import library (.lib) is generated
+set_target_properties(speexdsp PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
+
+# Link math library if available
+find_library(MATH_LIBRARY m)
+if(MATH_LIBRARY)
+    target_link_libraries(speexdsp PRIVATE ${MATH_LIBRARY})
+endif()
+
+target_include_directories(speexdsp PUBLIC
+    $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/include>
+    $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/include>
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+)
+
+# Installation rules
+install(TARGETS speexdsp
+    EXPORT speexdspTargets
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+)
+install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+install(FILES "${CMAKE_BINARY_DIR}/include/speex/speexdsp_config_types.h"
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/speex
+)
+
+# Create and install pkg-config file
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/speexdsp.pc.in"
+    "${CMAKE_BINARY_DIR}/speexdsp.pc"
+    @ONLY
+)
+install(FILES "${CMAKE_BINARY_DIR}/speexdsp.pc"
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
+)
+
+# Create CMake package config files
+include(CMakePackageConfigHelpers)
+
+configure_package_config_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/speexdspConfig.cmake.in"
+    "${CMAKE_BINARY_DIR}/speexdspConfig.cmake"
+    INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/speexdsp
+)
+
+write_basic_package_version_file(
+    "${CMAKE_BINARY_DIR}/speexdspConfigVersion.cmake"
+    VERSION ${PROJECT_VERSION}
+    COMPATIBILITY SameMajorVersion
+)
+
+install(EXPORT speexdspTargets
+    FILE speexdspTargets.cmake
+    NAMESPACE speexdsp::
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/speexdsp
+)
+
+install(FILES
+    "${CMAKE_BINARY_DIR}/speexdspConfig.cmake"
+    "${CMAKE_BINARY_DIR}/speexdspConfigVersion.cmake"
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/speexdsp
+)

recipes/speexdsp/src/cmake/SpeexDSPConfig.cmake.in

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+# SpeexDSPConfig.cmake.in - compatibility shim
+# This file is superseded by speexdspConfig.cmake.in.
+# It is retained only to avoid breaking any existing references to the
+# capital-S name; the canonical configuration is speexdspConfig.cmake.in.
+
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/speexdspConfig.cmake")

recipes/speexdsp/src/cmake/config.h.in

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+/* cmake/config.h.in - CMake configuration header template for SpeexDSP */
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+/* Version information */
+#define PACKAGE_VERSION "@PROJECT_VERSION@"
+#define VERSION         "@PROJECT_VERSION@"
+#define PACKAGE_NAME    "@PROJECT_NAME@"
+#define PACKAGE_STRING  "@PROJECT_NAME@ @PROJECT_VERSION@"
+
+/* Package metadata */
+#define PACKAGE         "speexdsp"
+#define PACKAGE_BUGREPORT "speex-dev@xiph.org"
+#define PACKAGE_TARNAME "speexdsp"
+#define PACKAGE_URL     ""
+
+/* Build configuration */
+#cmakedefine FLOATING_POINT
+#cmakedefine FIXED_POINT
+
+/* FFT implementation */
+#define USE_KISS_FFT 1
+
+/* Platform-specific definitions */
+#ifdef _WIN32
+    #define HAVE_ALLOCA 1
+    #define USE_ALLOCA  1
+    #ifndef M_PI
+        #define M_PI 3.14159265358979323846
+    #endif
+    #ifndef EXPORT
+        #define EXPORT
+    #endif
+#else
+    #cmakedefine HAVE_ALLOCA_H
+    #cmakedefine HAVE_ALLOCA
+    #cmakedefine USE_ALLOCA
+    #define EXPORT
+#endif
+
+/* Standard headers */
+#cmakedefine HAVE_STDINT_H
+#define HAVE_INTTYPES_H 1
+#define HAVE_STDLIB_H   1
+#define HAVE_STRING_H   1
+#cmakedefine HAVE_MEMORY_H
+#cmakedefine HAVE_STRINGS_H
+#cmakedefine HAVE_SYS_STAT_H
+#cmakedefine HAVE_SYS_TYPES_H
+#cmakedefine HAVE_UNISTD_H
+#cmakedefine HAVE_DLFCN_H
+
+/* Integer sizes */
+#define SIZEOF_SHORT @SIZEOF_SHORT@
+#define SIZEOF_INT   @SIZEOF_INT@
+#ifdef _WIN64
+    #define SIZEOF_LONG 4
+#else
+    #define SIZEOF_LONG @SIZEOF_LONG@
+#endif
+
+/* Variable length arrays */
+#ifdef _MSC_VER
+    #undef VAR_ARRAYS
+    #define USE_ALLOCA 1
+    #include <malloc.h>
+    #define ALLOC(var, size, type) type *var = (type*)_alloca(sizeof(type)*(size))
+#else
+    #define VAR_ARRAYS 1
+    #define ALLOC(var, size, type) type var[size]
+#endif
+
+/* Endianness */
+#cmakedefine WORDS_BIGENDIAN
+
+/* ANSI C headers */
+#define STDC_HEADERS 1
+
+/* libtool object directory */
+#define LT_OBJDIR ".libs/"
+
+/* Compiler keyword compatibility */
+#ifdef _MSC_VER
+    #define inline   __inline
+    #define restrict __restrict
+#endif
+#ifndef _MSC_VER
+    #define typeof __typeof__
+#endif
+
+#endif /* CONFIG_H */