OpenWatcom: Add DOS target support

DOS 16-bit and 32-bit target support files for cross-compilation by
OpenWatcom.

It is used if CMAKE_SYSTEM_NAME=DOS is defined.

If CMAKE_SYSTEM_PROCESSOR=I86 is defined then 16-bit DOS target is used,
otherwise 32-bit DOS target is used.
This commit is contained in:
Jiri Malak
2020-05-06 13:09:00 -04:00
committed by Brad King
parent 8406f71eae
commit 0ab583d787
4 changed files with 44 additions and 0 deletions
+1
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include(Platform/DOS-OpenWatcom)
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include(Platform/DOS-OpenWatcom)
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# This module is shared by multiple languages; use include blocker.
include_guard()
set(CMAKE_BUILD_TYPE_INIT Debug)
if(DEFINED CMAKE_SYSTEM_PROCESSOR AND CMAKE_SYSTEM_PROCESSOR STREQUAL "I86")
string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " system dos")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_INIT " system dos")
string(APPEND CMAKE_MODULE_LINKER_FLAGS_INIT " system dos")
else()
string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " system dos4g")
string(APPEND CMAKE_SHARED_LINKER_FLAGS_INIT " system dos4g")
string(APPEND CMAKE_MODULE_LINKER_FLAGS_INIT " system dos4g")
endif()
set(CMAKE_C_COMPILE_OPTIONS_DLL "-bd") # Note: This variable is a ';' separated list
set(CMAKE_SHARED_LIBRARY_C_FLAGS "-bd") # ... while this is a space separated string.
string(APPEND CMAKE_C_FLAGS_INIT " -bt=dos")
string(APPEND CMAKE_CXX_FLAGS_INIT " -bt=dos -xs")
if(NOT CMAKE_C_STANDARD_INCLUDE_DIRECTORIES)
set(CMAKE_C_STANDARD_INCLUDE_DIRECTORIES $ENV{WATCOM}/h)
endif()
if(NOT CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES)
set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES $ENV{WATCOM}/h)
endif()
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set(DOS 1)
set(CMAKE_STATIC_LIBRARY_PREFIX "")
set(CMAKE_STATIC_LIBRARY_SUFFIX ".lib")
set(CMAKE_SHARED_LIBRARY_PREFIX "")
set(CMAKE_SHARED_LIBRARY_SUFFIX ".dll")
set(CMAKE_IMPORT_LIBRARY_PREFIX "")
set(CMAKE_IMPORT_LIBRARY_SUFFIX ".lib")
set(CMAKE_EXECUTABLE_SUFFIX ".exe")
set(CMAKE_LINK_LIBRARY_SUFFIX ".lib")
set(CMAKE_DL_LIBS "")
set(CMAKE_FIND_LIBRARY_PREFIXES "")
set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib")