add_definitions(-DEXPORT_XDOT)

add_library(xdot SHARED
  # Header files
  xdot.h

  # Source files
  xdot.c
)

target_include_directories(xdot PRIVATE
  ..
  ${CMAKE_CURRENT_SOURCE_DIR}
)

# Installation location of library files
install(
  TARGETS xdot
  RUNTIME DESTINATION ${BINARY_INSTALL_DIR}
  LIBRARY DESTINATION ${LIBRARY_INSTALL_DIR}
  ARCHIVE DESTINATION ${LIBRARY_INSTALL_DIR}
)

# Specify headers to be installed
install(
  FILES xdot.h
  DESTINATION ${HEADER_INSTALL_DIR}
)

# Specify man pages to be installed
if(GZIP)
  add_custom_target(man-xdot ALL DEPENDS xdot.3.gz
                    COMMENT "xdot man page")
  add_custom_command(
    OUTPUT xdot.3.gz
    COMMAND ${GZIP} -9 --no-name --to-stdout xdot.3
      >"${CMAKE_CURRENT_BINARY_DIR}/xdot.3.gz"
    MAIN_DEPENDENCY xdot.3
    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
    COMMENT "compress xdot man page")
  install(
    FILES ${CMAKE_CURRENT_BINARY_DIR}/xdot.3.gz
    DESTINATION ${MAN_INSTALL_DIR}/man3)
else()
  install(
    FILES xdot.3
    DESTINATION ${MAN_INSTALL_DIR}/man3
  )
endif()

# Specify library version and soversion
set_target_properties(xdot PROPERTIES
  VERSION 4.0.0
  SOVERSION 4
)
