#Generate and install a launcher batch file for OpenWatcom 8086
#as bin/openwatcom-launcher.cmd containing absolute paths for the compiler
#executable we find via find_program(). 

cmake_minimum_required(VERSION 3.6.3)
project (openwatcom-launcher)

find_program (OPENWATCOM_C_EXECUTABLE wcl ${CMAKE_INSTALL_PREFIX}/binnt binnt)

if (OPENWATCOM_C_EXECUTABLE)
  message (STATUS "OpenWatcom compiler launcher will invoke " ${OPENWATCOM_C_EXECUTABLE})
else()
  message (FATAL_ERROR "Could not find OpenWatcom compiler executable")
endif()

#The following will be written verbatim to the launcher batch file, so they
#must be in native format.
#file(TO_NATIVE_PATH "${OPENWATCOM_C_EXECUTABLE}" OPENWATCOM_PATH_IN_DOS_FORMAT)
file(TO_NATIVE_PATH "${CMAKE_COMMAND}" CMAKE_COMMAND_IN_DOS_FORMAT)
file(TO_NATIVE_PATH "${CMAKE_INSTALL_PREFIX}" PREFIX_IN_DOS_FORMAT)

#Generate the compiler launcher which contains the absolute filename of the
#compiler executable as given by OPENWATCOM_C_EXECUTABLE.
configure_file (${CMAKE_CURRENT_LIST_DIR}/launcher-template.txt ${CMAKE_BINARY_DIR}/openwatcom-launcher.cmd)

install (FILES 
         ${CMAKE_BINARY_DIR}/openwatcom-launcher.cmd
         DESTINATION bin)