FreeRDP/cmake/PlatformDefaults.cmake

# This option allows deactivating FreeRDP supplied platform defauts to replace these with
# user supplied values.
#
# Compilation will fail without a replacement defining the symbols, but that can be
# done by supplying a TOOLCHAIN_FILE defining these.
option(USE_PLATFORM_DEFAULT "Use this configuration file for platform defaults. Supply -DCMAKE_TOOLCHAIN_FILE=<yourfile> otherwise." ON)
if (USE_PLATFORM_DEFAULT)
    # default defines or other required preferences per platform
    if((CMAKE_SYSTEM_NAME MATCHES "WindowsStore") AND (CMAKE_SYSTEM_VERSION MATCHES "10.0"))
        set(UWP 1 CACHE BOOL "platform default")
        add_definitions("-D_UWP")
        set(CMAKE_WINDOWS_VERSION "WIN10" CACHE STRING "platform default")
    endif()

    if("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
        # Linux already does define _POSIX_C_SOURCE by default, nothing to do
        add_definitions("-D_FILE_OFFSET_BITS=64")
        set(WINPR_TIMEZONE_FILE "/etc/timezone")
    endif()

    if("${CMAKE_SYSTEM_NAME}" MATCHES "FreeBSD")
        # we want POSIX 2008. FreeBSD 14 does only support 2001 fully, but the subset we require from 2008
        # is implemented, so ignore _POSIX_VERSION from unistd.h
        add_definitions("-D_POSIX_C_SOURCE=200809L")
        # TODO: FreeBSD allows mixing POSIX and BSD API calls if we do not set
        # _POSIX_C_SOURCE but lack a macro to reenable the BSD calls...
        add_definitions("-D__BSD_VISIBLE")

        # There are some symbols only visible for XOpen standard
        add_definitions("-D_XOPEN_SOURCE=700")
        add_definitions("-D_FILE_OFFSET_BITS=64")
        set(WINPR_TIMEZONE_FILE "/var/db/zoneinfo")
    endif()

    if("${CMAKE_SYSTEM_NAME}" MATCHES "SunOS")
        # TODO: Does somebody still use this? please show yourself and
        # tell us if this still works.
        add_definitions("-D_POSIX_PTHREAD_SEMANTICS")
        list(APPEND CMAKE_STANDARD_LIBRARIES rt)
        set(CMAKE_STANDARD_LIBRARIES ${CMAKE_STANDARD_LIBRARIES} CACHE STRING "platform default")
        set(WITH_SUN true CACHE BOOL "platform default")
    endif()

    if("${CMAKE_SYSTEM_NAME}" MATCHES "Darwin")
        # we want POSIX 2008. MacOS does only support 2001 fully, but the subset we require from 2008
        # is implemented, so ignore _POSIX_VERSION from unistd.h
        add_definitions("-D_POSIX_C_SOURCE=200809L")

        # as _POSIX_C_SOURCE sets a fully POSIX confirmant environment reenable
        # MacOS API visibility by defining the following feature test macro
        add_definitions("-D_DARWIN_C_SOURCE")
    endif()

    # define a fallback for systems that do not support a timezone file or we did not yet test.
    # since most of these are BSD try a sensible default
    if (NOT WINPR_TIMEZONE_FILE)
        set(WINPR_TIMEZONE_FILE "/var/db/zoneinfo")
    endif()

    add_definitions("-DWINPR_TIMEZONE_FILE=\"${WINPR_TIMEZONE_FILE}\"")
endif()