FindSDL_mixer

Finds the SDL_mixer library that provides an audio mixer with support for various file formats in SDL (Simple DirectMedia Layer) applications:

find_package(SDL_mixer [<version>] [...])

Note

This module is specifically intended for SDL_mixer version 1. Starting with version 2.5, SDL_mixer provides a CMake package configuration file when built with CMake and should be found using find_package(SDL2_mixer). These newer versions provide Imported Targets that encapsulate usage requirements. Refer to the official SDL documentation for more information.

Result Variables

This module defines the following variables:

SDL_mixer_FOUND: Added in version 3.3.

Boolean indicating whether the (requested version of) SDL_mixer library was found.
SDL_mixer_VERSION: Added in version 4.2.

The human-readable string containing the version of SDL_mixer found.
SDL_MIXER_INCLUDE_DIRS: Include directories containing headers needed to use the SDL_mixer library.
SDL_MIXER_LIBRARIES: Libraries needed to link against to use SDL_mixer.

Hints

This module accepts the following variables:

SDLDIR: Environment variable that can be set to help locate an SDL library installed in a custom location. It should point to the installation destination that was used when configuring, building, and installing SDL library: ./configure --prefix=$SDLDIR.

Deprecated Variables

The following variables are provided for backward compatibility:

SDL_MIXER_VERSION_STRING: Deprecated since version 4.2: Use SDL_mixer_VERSION, which has the same value.

The human-readable string containing the version of SDL_mixer found.
SDL_MIXER_FOUND: Deprecated since version 4.2: Use SDL_mixer_FOUND, which has the same value.
SDLMIXER_FOUND: Deprecated since version 2.8.10: Use SDL_mixer_FOUND, which has the same value.
SDLMIXER_INCLUDE_DIR: Deprecated since version 2.8.10: Use SDL_MIXER_INCLUDE_DIRS, which has the same value.
SDLMIXER_LIBRARY: Deprecated since version 2.8.10: Use SDL_MIXER_LIBRARIES, which has the same value.

Examples

Finding SDL_mixer library and creating an imported interface target for linking it to a project target:

find_package(SDL_mixer)

if(SDL_mixer_FOUND AND NOT TARGET SDL::SDL_mixer)
  add_library(SDL::SDL_mixer INTERFACE IMPORTED)
  set_target_properties(
    SDL::SDL_mixer
    PROPERTIES
      INTERFACE_INCLUDE_DIRECTORIES "${SDL_MIXER_INCLUDE_DIRS}"
      INTERFACE_LINK_LIBRARIES "${SDL_MIXER_LIBRARIES}"
  )
endif()

target_link_libraries(project_target PRIVATE SDL::SDL_mixer)

When working with SDL_mixer version 2, the upstream package provides the SDL2_mixer::SDL2_mixer imported target directly. It can be used in a project without using this module:

find_package(SDL2_mixer)
target_link_libraries(project_target PRIVATE SDL2_mixer::SDL2_mixer)