# 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

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)

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")