cmake_modules/CMakeDeterminePascalCompiler.cmake
author Wuzzy <Wuzzy2@mail.ru>
Sat, 06 Jun 2020 15:40:51 +0200
changeset 15597 6e72bd61002e
parent 9517 217eacb69395
permissions -rw-r--r--
Disable gfMoreWind for land objects on turn end only after a fixed-time delay 15s sounds much, but it's the average amount for gfMineStrike mines to settle naturally. And it would be very confusing to see falling mines suddenly not caring about gfMoreWind for no apparent reason. Note this whole thing is a giant hack anyway, to prevent a turn being blocked by infinitely bouncing mines. The better solution would be to help gfMoreWind-affected land objects settle naturally more reliably even under extreme wind. But this commit is "good enough" for now. If you don't like the delay, you can always tweak the constant.

# Determine the compiler to use for Pascal programs
# NOTE, a generator may set CMAKE_Pascal_COMPILER before
# loading this file to force a compiler.
# use environment variable Pascal first if defined by user, next use
# the cmake variable CMAKE_GENERATOR_PASCAL which can be defined by a generator
# as a default compiler

# NOTE: on Darwin cmake >= 2.8.11 until cmake <= 2.8.12.1 will add an incompatible
# -F flag to <FLAGS> so you won't be able to use those versions with this script

if(NOT CMAKE_Pascal_COMPILER)
    # prefer the environment variable FPC
    if($ENV{FPC} MATCHES ".+")
        get_filename_component(CMAKE_Pascal_COMPILER_INIT $ENV{FPC} PROGRAM PROGRAM_ARGS CMAKE_Pascal_FLAGS_ENV_INIT)
        if(CMAKE_Pascal_FLAGS_ENV_INIT)
            set(CMAKE_Pascal_COMPILER_ARG1 "${CMAKE_Pascal_FLAGS_ENV_INIT}" CACHE STRING "First argument to Pascal compiler")
        endif(CMAKE_Pascal_FLAGS_ENV_INIT)
        if(EXISTS ${CMAKE_Pascal_COMPILER_INIT})
        else(EXISTS ${CMAKE_Pascal_COMPILER_INIT})
            message(FATAL_ERROR "Could not find compiler set in environment variable FPC:\n$ENV{FPC}.")
        endif(EXISTS ${CMAKE_Pascal_COMPILER_INIT})
    endif($ENV{FPC} MATCHES ".+")

    # next try prefer the compiler specified by the generator
    if(CMAKE_GENERATOR_PASCAL)
        if(NOT CMAKE_Pascal_COMPILER_INIT)
            set(CMAKE_Pascal_COMPILER_INIT ${CMAKE_GENERATOR_PASCAL})
        endif(NOT CMAKE_Pascal_COMPILER_INIT)
    endif(CMAKE_GENERATOR_PASCAL)

    # finally list compilers to try
    if(CMAKE_Pascal_COMPILER_INIT)
        set(CMAKE_Pascal_COMPILER_LIST ${CMAKE_Pascal_COMPILER_INIT})
    else(CMAKE_Pascal_COMPILER_INIT)
        set(CMAKE_Pascal_COMPILER_LIST fpc)
    endif(CMAKE_Pascal_COMPILER_INIT)

    # Find the compiler.
    find_program(CMAKE_Pascal_COMPILER NAMES ${CMAKE_Pascal_COMPILER_LIST} DOC "Pascal compiler")
    if(CMAKE_Pascal_COMPILER_INIT AND NOT CMAKE_Pascal_COMPILER)
        set(CMAKE_Pascal_COMPILER "${CMAKE_Pascal_COMPILER_INIT}" CACHE FILEPATH "Pascal compiler" FORCE)
    endif(CMAKE_Pascal_COMPILER_INIT AND NOT CMAKE_Pascal_COMPILER)
endif(NOT CMAKE_Pascal_COMPILER)
mark_as_advanced(CMAKE_Pascal_COMPILER)

if(NOT CMAKE_Pascal_COMPILER_VERSION)
    execute_process(COMMAND ${CMAKE_Pascal_COMPILER} -iV
                    OUTPUT_VARIABLE CMAKE_Pascal_COMPILER_VERSION
                    OUTPUT_STRIP_TRAILING_WHITESPACE
                    ) # we assume no error for something so simple
    set(CMAKE_Pascal_COMPILER_ARG1 "-l- -v0ewn")
endif(NOT CMAKE_Pascal_COMPILER_VERSION)
mark_as_advanced(CMAKE_Pascal_COMPILER_VERSION)

get_filename_component(COMPILER_LOCATION "${CMAKE_Pascal_COMPILER}" PATH)

# configure variables set in this file for fast reload later on
if(${CMAKE_VERSION} VERSION_LESS 2.8.10)
    configure_file(${CMAKE_MODULE_PATH}/CMakePascalCompiler.cmake.in
                   "${CMAKE_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/CMakePascalCompiler.cmake"
                   IMMEDIATE )
else(${CMAKE_VERSION} VERSION_LESS 2.8.10)
    configure_file(${CMAKE_MODULE_PATH}/CMakePascalCompiler.cmake.in
                  "${CMAKE_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/${CMAKE_VERSION}/CMakePascalCompiler.cmake"
                   IMMEDIATE )
endif(${CMAKE_VERSION} VERSION_LESS 2.8.10)

set(CMAKE_Pascal_COMPILER_ENV_VAR "FPC")