FindLua51

Finds the Lua library:

find_package(Lua51 [<version>] [...])

Lua is a embeddable scripting language.

When working with Lua, its library headers are intended to be included in project source code as:

#include <lua.h>

and not:

#include <lua/lua.h>

This is because, the location of Lua headers may differ across platforms and may exist in locations other than lua/.

Result Variables

This module defines the following variables:

Lua51_FOUND

Added in version 3.3.

Boolean indicating whether (the requested version of) Lua was found.

Lua51_VERSION

Added in version 4.2.

The version of Lua 5.1 found.

Cache Variables

The following cache variables may also be set:

LUA_INCLUDE_DIR

The directory containing the Lua header files, such as lua.h, lualib.h, and lauxlib.h, needed to use Lua.

LUA_LIBRARIES

Libraries needed to link against to use Lua.

Deprecated Variables

The following variables are provided for backward compatibility:

LUA51_FOUND

Deprecated since version 4.2: Use Lua51_FOUND, which has the same value.

Boolean indicating whether (the requested version of) Lua was found.

LUA_VERSION_STRING

Deprecated since version 4.2: Use Lua51_VERSION, which has the same value.

The version of Lua 5.1 found.

Examples

Finding the Lua 5.1 library and creating an interface imported target that encapsulates its usage requirements for linking to a project target:

find_package(Lua51)

if(Lua51_FOUND AND NOT TARGET Lua51::Lua51)
  add_library(Lua51::Lua51 INTERFACE IMPORTED)
  set_target_properties(
    Lua51::Lua51
    PROPERTIES
      INTERFACE_INCLUDE_DIRECTORIES "${LUA_INCLUDE_DIR}"
      INTERFACE_LINK_LIBRARIES "${LUA_LIBRARIES}"
  )
endif()

target_link_libraries(project_target PRIVATE Lua51::Lua51)

See Also

• The FindLua module to find Lua in version-agnostic way.