FindJPEG — CMake 4.1.4 Documentation

# FindJPEG

Finds the Joint Photographic Experts Group (JPEG) library (`libjpeg`).

Changed in version 3.12: Debug and Release JPEG library variants are now found separately.

## Imported Targets

This module provides the following Imported Targets:

`JPEG::JPEG`

  Added in version 3.12.

  Target encapsulating the JPEG library usage requirements. It is available only when JPEG is found.

## Result Variables

This module sets the following variables:

`JPEG_FOUND`

  Boolean indicating whether the JPEG is found.

`JPEG_INCLUDE_DIRS`

  Include directories containing headers needed to use JPEG.

`JPEG_LIBRARIES`

  Libraries needed to link to JPEG.

`JPEG_VERSION`

  Added in version 3.12.

  The version of the JPEG library found.

## Cache Variables

The following cache variables may also be set:

`JPEG_INCLUDE_DIR`

  Directory containing the `jpeglib.h` and related header files.

`JPEG_LIBRARY_RELEASE`

  Added in version 3.12.

  Path to the release (optimized) variant of the JPEG library.

`JPEG_LIBRARY_DEBUG`

  Added in version 3.12.

  Path to the debug variant of the JPEG library.

## Obsolete Variables

The following legacy variables are provided for backward compatibility:

`JPEG_LIBRARY`

  Changed in version 3.12: This variable has been superseded by the `JPEG_LIBRARY_RELEASE` and `JPEG_LIBRARY_DEBUG` variables.

  Path to the JPEG library.

## Examples

Finding JPEG library and linking it to a project target:

    find_package(JPEG)
    target_link_libraries(project_target PRIVATE JPEG::JPEG)