CMakeLists.txt
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cmake_minimum_required(VERSION 3.4)
project(2ine)
# Note that this project doesn't work on Mac OS X because I can't mmap()
# address 0x10000, which is the usual base address for OS/2 binaries.
# It appears the address is already accessible when main() begins, but no
# objects seem to be loaded there. I don't know what it is...maybe some
# thing allocated by the C runtime at startup? Have to solve that somehow or
# give up on Mac support.
#
# Eventually, even on Linux, it might make sense to override malloc and friends
# at the dynamic loader level, so we control all allocations even if they
# happen in glibc. Once we have that, make sure they all sit in the upper
# 2 gigabytes (reserved for system use on OS/2, so this works out), probably
# with them mmap()'d there via a local copy of dlmalloc or something.
#
# Note that 32-bit OS/2 programs only got 512 megabytes of the address space
# (enormous in the days of machines with a couple megabytes of physical RAM!)
# to accomodate thunking to and from 16 bit code. We don't bother with this
# at the moment, though, but maybe we must at some point. I hope not.
#
# Also, it might be nice if we can run as a 64-bit process and thunk around in
# 32-bits as necessary, but I don't know the technical barriers to this yet.
# If we can pull that off, it would allow an OS/2 app to have the full 4
# gigabytes of memory, and we'll just put 2ine's data outside of that range,
# and run the native bits with more registers, etc. Maybe even keep the
# native functions out of low memory and only eat a few bytes of it with
# trampolines. I'm probably getting ahead of myself, though, as it's not like
# any OS/2 apps were _that_ memory hungry, and honestly? Port your software.
if(NOT CMAKE_BUILD_TYPE)
set(DEBUG_BUILD ON)
endif()
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
set(DEBUG_BUILD ON)
endif()
if(DEBUG_BUILD)
add_definitions(-DDEBUG -O0)
else()
add_definitions(-D_RELEASE)
add_definitions(-DNDEBUG)
add_definitions(-DRELEASE)
endif()
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option(LX_LEGACY "Enable OS/2 binary support (vs just native apps)" TRUE)
if(NOT LX_LEGACY)
add_definitions(-DLX_LEGACY=0)
endif()
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add_definitions(-std=c99 -Wall -ggdb3)
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add_definitions(-D_FILE_OFFSET_BITS=64)
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set(CURSES_NEED_WIDE TRUE)
set(CURSES_NEED_NCURSES TRUE)
find_package(Curses)
if(NOT CURSES_FOUND)
message(FATAL_ERROR "ncurses not found")
endif()
include_directories(${CURSES_INCLUDE_DIR})
if(CURSES_HAVE_NCURSESW_NCURSES_H)
add_definitions(-DHAVE_NCURSESW_NCURSES_H)
elseif(CURSES_HAVE_NCURSESW_CURSES_H)
add_definitions(-DHAVE_NCURSESW_CURSES_H)
elseif(CURSES_HAVE_NCURSESW_H)
add_definitions(-DHAVE_NCURSESW_H)
elseif(CURSES_HAVE_CURSES_H)
add_definitions(-DHAVE_CURSES_H)
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elseif(CURSES_HAVE_NCURSES_CURSES_H)
add_definitions(-DHAVE_NCURSESW_NCURSES_H)
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# !!! FIXME
include_directories("/usr/local/include/SDL2")
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add_library(2ine SHARED "lib2ine.c")
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if(LX_LEGACY)
set_target_properties(2ine PROPERTIES COMPILE_FLAGS "-m32")
set_target_properties(2ine PROPERTIES LINK_FLAGS "-m32 -ggdb3")
endif()
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target_link_libraries(2ine "pthread")
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foreach(_I doscalls;msg;nls;quecalls;viocalls;kbdcalls;sesmgr;som;pmwin;pmshapi;pmgpi;tcpip32)
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add_library(${_I} SHARED "native/${_I}.c")
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if(LX_LEGACY)
set_target_properties(${_I} PROPERTIES COMPILE_FLAGS "-m32")
set_target_properties(${_I} PROPERTIES LINK_FLAGS "-m32 -ggdb3")
endif()
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target_link_libraries(${_I} 2ine)
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endforeach()
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target_link_libraries(doscalls "pthread")
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# FIXME target_link_libraries(viocalls ${CURSES_LIBRARIES})
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target_link_libraries(viocalls /usr/lib/i386-linux-gnu/libncursesw.so.6)
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# !!! FIXME: clean this up/
if(LX_LEGACY)
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target_link_libraries(2ine "${CMAKE_CURRENT_SOURCE_DIR}/libSDL2-2.0.so.0")
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target_link_libraries(pmwin "${CMAKE_CURRENT_SOURCE_DIR}/libSDL2-2.0.so.0")
else()
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target_link_libraries(2ine "SDL2")
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target_link_libraries(pmwin "SDL2")
endif()
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add_executable(lx_dump lx_dump.c)
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if(LX_LEGACY)
add_executable(lx_loader lx_loader.c)
target_link_libraries(lx_loader 2ine)
target_link_libraries(lx_loader "dl")
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set_target_properties(lx_loader PROPERTIES COMPILE_FLAGS "-m32 -no-pie")
set_target_properties(lx_loader PROPERTIES LINK_FLAGS "-m32 -no-pie -ggdb3")
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# end of CMakeLists.txt ...