# ICEDUST_CREATE_PACKAGE_VERSION
# ------------------------------
#
# Macro to create the version include file
# Mimics the version fragment used by CMT
#
# All files are created from template files located at ICEDUST_packages/cmake/
#
# Output
# ^^^^^
#
# Creates:
#   ${PROJECT_NAME}_version.h
# at: CURRENT_BINARY_DIR/version
#
# Previously this file was always created in-source.
# Now: Depending on the provided option (in- or out-source) 
# CURRENT_BINARY_DIR directory is located out- or in-source.
#
#
# manager COMET Software Group
# author andreas.jansen@tu-dresden.de

function(ICEDUST_CREATE_PACKAGE_VERSION)
    # --- all uname information ---
    execute_process(COMMAND "uname" "-a" 
        OUTPUT_VARIABLE RESULT_OF_UNAME_A
        OUTPUT_STRIP_TRAILING_WHITESPACE)

    # --- compile host information ---
    execute_process(COMMAND "uname" "-n" 
        OUTPUT_VARIABLE RESULT_OF_UNAME_N
        OUTPUT_STRIP_TRAILING_WHITESPACE)

    # --- date of compilation ---
    execute_process(COMMAND "date" "-u" 
    OUTPUT_VARIABLE RESULT_OF_DATE
    OUTPUT_STRIP_TRAILING_WHITESPACE)

    # --- create <packageName>_version.h file ---
    configure_file (
    "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/version.in"  #INPUT-File
    "${CMAKE_CURRENT_BINARY_DIR}/version/${PROJECT_NAME}_version.h"  #OUTPUT-File
    )
endfunction()