Герхард PICCORO Lenz McKAY 6a757711fb finally got compilinig flags for C++11 using gnu extensions
* related to https://codeberg.org/minenux/minetest-engine/issues/18
* use c++11 but with gnu xtensions
* related to https://codeberg.org/minenux/minetest-engine/issues/14
* complete fix for 4ef3bc602f and set C++11/C++0X depends on compiler
* final set continuation of commit 83a552ed1ac26e9f9d98a98661a6cdb79e7329d2
* fix cmake if-else misctakes error sintax
2021-11-30 14:23:39 -04:00

106 lines
3.1 KiB
CMake

cmake_minimum_required(VERSION 2.4 FATAL_ERROR)
project(lua C)
set(LUA_VERSION_MAJOR 5)
set(LUA_VERSION_MINOR 1)
set(LUA_VERSION_PATCH 4)
set(LUA_VERSION "${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}.${LUA_VERSION_PATCH}")
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
set(COMMON_CFLAGS)
set(COMMON_LDFLAGS)
set(LIBS)
if(APPLE)
set(DEFAULT_POSIX TRUE)
set(DEFAULT_DLOPEN ON)
# use this on Mac OS X 10.3-
option(LUA_USE_MACOSX "Mac OS X 10.3-" OFF)
elseif(UNIX OR CYGWIN)
set(DEFAULT_POSIX TRUE)
elseif(WIN32)
set(LUA_WIN TRUE)
set(COMMON_CFLAGS "${COMMON_CFLAGS} -DLUA_BUILD_AS_DLL")
else()
set(DEFAULT_ANSI TRUE)
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(COMMON_LDFLAGS "${COMMON_LDFLAGS} -Wl,-E -lm")
set(DEFAULT_DLOPEN ON)
endif()
# For "Mac OS X 10.3-"
if(LUA_USE_MACOSX)
set(COMMON_CFLAGS "${COMMON_CFLAGS} -DLUA_USE_MACOSX")
set(LUA_USE_DLOPEN FALSE)
endif(LUA_USE_MACOSX)
option(LUA_USE_DLOPEN "Enable dlopen support." ${DEFAULT_DLOPEN})
mark_as_advanced(LUA_USE_DLOPEN)
option(LUA_ANSI "Disable non-ANSI features." ${DEFAULT_ANSI})
mark_as_advanced(LUA_ANSI)
if(LUA_USE_DLOPEN)
set(COMMON_CFLAGS "${COMMON_CFLAGS} -DLUA_USE_DLOPEN")
if(NOT APPLE)
set(COMMON_LDFLAGS "${COMMON_LDFLAGS} -ldl ")
endif(NOT APPLE)
endif(LUA_USE_DLOPEN)
if(DEFAULT_POSIX)
set(COMMON_CFLAGS "${COMMON_CFLAGS} -DLUA_USE_POSIX")
endif(DEFAULT_POSIX)
if(LUA_ANSI)
set(COMMON_CFLAGS "${COMMON_CFLAGS} -DLUA_ANSI")
endif(LUA_ANSI)
# COMMON_CFLAGS has no effect without this line
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COMMON_CFLAGS}")
# determine compiler compatible and set flags, assume if C++ is installed also CC is installed
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pipe -Wall -Wextra -Wshadow -W -pedantic")
if(CMAKE_C_COMPILER_VERSION VERSION_LESS 4.6)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --std=gnu99")
elseif(CMAKE_C_COMPILER_VERSION VERSION_EQUAL 4.6)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --std=gnu1x")
else()
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --std=gnu11")
endif()
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${CMAKE_C_FLAGS} ")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${CMAKE_C_FLAGS} -g")
set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_PROFILE} ${CMAKE_C_FLAGS} -O1 -g")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_WITHDEBINFO} ${CMAKE_C_FLAGS} -g")
elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 3.5)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu11")
endif()
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${CMAKE_C_FLAGS} ")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${CMAKE_C_FLAGS} -g")
set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_PROFILE} ${CMAKE_C_FLAGS} -O1 -g")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_WITHDEBINFO} ${CMAKE_C_FLAGS} -g")
else()
if(CMAKE_VERSION VERSION_GREATER 3.0)
set(CMAKE_C_STANDARD 11)
else()
if(APPLE)
# Fix behavior of CMAKE_CXX_STANDARD when targeting macOS.
if (POLICY CMP0025)
cmake_policy(SET CMP0025 NEW)
endif ()
endif ()
endif()
endif()
add_subdirectory(src build)