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# Lua can be compiled as either C or C++.
# Default configuration is C, set COMPILE_AS_CPP to ON to use C++.
# See http://stackoverflow.com/questions/13560945/c-and-c-library-using-longjmp for why would you want to do that.
# Primary differences:
# - Exceptions will be used instead of setjmp/longjmp
# - The name mangling for functions will be C++ instead of C.
# - This is a source-incompatible change because extern "C" is chosen by the including application.
# - The lua.hpp header will not be available.
PROJECT ( lua )
CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
SET (HDR_LIBLUA
src/lapi.h src/lauxlib.h src/lcode.h src/lctype.h src/ldebug.h src/ldo.h src/lfunc.h
src/lgc.h src/llex.h src/llimits.h src/lmem.h src/lobject.h src/lopcodes.h src/lparser.h
src/lstate.h src/lstring.h src/ltable.h src/ltm.h src/lua.h src/luaconf.h src/lualib.h
src/lundump.h src/lvm.h src/lzio.h
)
# Build Libraries
SET (SRC_LIBLUA
src/lapi.c src/lauxlib.c src/lbaselib.c src/lcode.c src/lcorolib.c
src/lctype.c src/ldblib.c src/ldebug.c src/ldo.c src/ldump.c src/lfunc.c src/lgc.c
src/linit.c src/liolib.c src/llex.c src/lmathlib.c src/lmem.c src/loadlib.c src/lobject.c
src/lopcodes.c src/loslib.c src/lparser.c src/lstate.c src/lstring.c src/lstrlib.c
src/ltable.c src/ltablib.c src/ltm.c src/lundump.c src/lutf8lib.c src/lvm.c src/lzio.c
)
IF (COMPILE_AS_CPP)
SET_SOURCE_FILES_PROPERTIES(${SRC_LIBLUA} src/lua.c src/luac.c PROPERTIES LANGUAGE CXX)
ELSE ()
SET (CMAKE_C_STANDARD 99)
ENDIF ()
# append headers to sources to make them show up in MSVC GUI
LIST(APPEND SRC_LIBLUA ${HDR_LIBLUA})
IF (WIN32)
# remove warnings
ADD_DEFINITIONS (-D_CRT_SECURE_NO_WARNINGS )
ENDIF ()
IF (UNIX)
ADD_DEFINITIONS (-DLUA_USE_POSIX)
FIND_LIBRARY (LIB_MATH NAMES m)
IF (LIB_MATH)
LINK_LIBRARIES (${LIB_MATH})
ENDIF ()
ENDIF ()
#DLL
ADD_LIBRARY ( lua ${SRC_LIBLUA} )
SET_PROPERTY (TARGET lua PROPERTY POSITION_INDEPENDENT_CODE ON)
IF (BUILD_SHARED_LIBS AND WIN32)
TARGET_COMPILE_DEFINITIONS (lua PUBLIC -DLUA_BUILD_AS_DLL )
ENDIF ()
IF (UNIX)
IF (APPLE)
TARGET_COMPILE_DEFINITIONS (lua PUBLIC -DLUA_USE_DLOPEN)
ELSE ()
FIND_LIBRARY (LIB_DLOPEN NAMES dl)
IF (LIB_DLOPEN)
TARGET_COMPILE_DEFINITIONS (lua PUBLIC -DLUA_USE_DLOPEN)
TARGET_LINK_LIBRARIES (lua ${LIB_DLOPEN})
ENDIF ()
ENDIF ()
ENDIF ()
INSTALL ( TARGETS lua
EXPORT unofficial-lua-config
RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin
LIBRARY DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
ARCHIVE DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
)
install(EXPORT unofficial-lua-config DESTINATION share/unofficial-lua)
IF (COMPILE_AS_CPP)
ADD_LIBRARY ( lua-cpp ${SRC_LIBLUA} )
SET_TARGET_PROPERTIES(lua-cpp PROPERTIES OUTPUT_NAME "lua-c++")
IF (BUILD_SHARED_LIBS AND WIN32)
TARGET_COMPILE_DEFINITIONS (lua-cpp PUBLIC -DLUA_BUILD_AS_DLL )
ENDIF ()
IF (UNIX)
IF (APPLE)
TARGET_COMPILE_DEFINITIONS (lua-cpp PUBLIC -DLUA_USE_DLOPEN)
ELSE ()
FIND_LIBRARY (LIB_DLOPEN NAMES dl)
IF (LIB_DLOPEN)
TARGET_COMPILE_DEFINITIONS (lua-cpp PUBLIC -DLUA_USE_DLOPEN)
TARGET_LINK_LIBRARIES (lua-cpp ${LIB_DLOPEN})
ENDIF ()
ENDIF ()
ENDIF ()
INSTALL ( TARGETS lua-cpp
EXPORT unofficial-lua-cpp-config
RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin
LIBRARY DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
ARCHIVE DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
)
install(EXPORT unofficial-lua-cpp-config DESTINATION share/unofficial-lua-cpp)
ENDIF()
IF (INSTALL_TOOLS)
ADD_EXECUTABLE ( luac src/luac.c ${SRC_LIBLUA} ) # compiler uses non-exported APIs, so must include sources directly.
ADD_EXECUTABLE ( luai src/lua.c ) # interpreter
TARGET_LINK_LIBRARIES ( luai lua )
SET_TARGET_PROPERTIES ( luai PROPERTIES OUTPUT_NAME lua PDB_NAME luai )
IF (UNIX)
IF (CMAKE_SYSTEM_NAME STREQUAL FreeBSD)
SET (_LIB_READLINE_NAME edit)
ELSE ()
SET (_LIB_READLINE_NAME readline)
ENDIF ()
FIND_LIBRARY (LIB_READLINE NAMES ${_LIB_READLINE_NAME})
IF (LIB_READLINE)
TARGET_COMPILE_DEFINITIONS (luai PUBLIC -DLUA_USE_READLINE)
TARGET_LINK_LIBRARIES(luai ${LIB_READLINE})
IF (_LIB_READLINE_NAME STREQUAL edit)
TARGET_INCLUDE_DIRECTORIES (luai PUBLIC /usr/include/edit)
ENDIF ()
ENDIF ()
ENDIF ()
INSTALL ( TARGETS luai luac RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/tools/lua )
ENDIF ()
IF (NOT SKIP_INSTALL_HEADERS)
INSTALL(
FILES
src/lualib.h
src/lua.h
src/luaconf.h
src/lauxlib.h
DESTINATION include
)
# If using C++, don't install extern "C" wrapper.
IF (NOT COMPILE_AS_CPP)
INSTALL(FILES src/lua.hpp DESTINATION include)
ENDIF ()
ENDIF ()
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