CMakeLists.txt

#------------------------------------------------------------------------------
# Top Level CMakeLists.txt for HepMC
#  cmake -Dmomentum:STRING=[MEV|GEV] -Dlength:STRING=[MM|CM]
#        [-DCMAKE_INSTALL_PREFIX=/install/path]
#        [-DCMAKE_BUILD_TYPE=Debug|Release|RelWithDebInfo|MinSizeRel]
#        [-Dbuild_docs:BOOL=ON]
#        /path/to/source
#  make
#  make test
#  make install
#
# The default HepMC build type is CMAKE_BUILD_TYPE=RelWithDebInfo,
# which matches the default HepMC autoconf flags
#------------------------------------------------------------------------------

# use cmake 2.6 or later
cmake_minimum_required (VERSION 2.6)
set(CMAKE_VERBOSE_MAKEFILE ON)
# project name and version
project(HepMC)
set( version 2.07.00 )

if ( momentum )
  set( HEPMC_DEFAULT_MOM_UNIT ${momentum} )
else()
  message(FATAL_ERROR "You must specify the momentum units with -Dmomentum=[MEV|GEV]")
endif()

if ( length )
  set( HEPMC_DEFAULT_LEN_UNIT ${length} )
else()
  message(FATAL_ERROR "You must specify the length units with -Dlength=[MM|CM]")
endif()

message(STATUS "default momentum and length are ${HEPMC_DEFAULT_MOM_UNIT} ${HEPMC_DEFAULT_LEN_UNIT}")

# find the HepMC cmake modules
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules ${CMAKE_MODULE_PATH})

# # make sure we are not building from within the source code directory
# string(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" in_source)
# string( REGEX MATCH "${CMAKE_SOURCE_DIR}/" in_source_subdir
# "${CMAKE_BINARY_DIR}")
# if (in_source OR in_source_subdir)
#   message(FATAL_ERROR "
# ERROR: In source builds of this project are not allowed.
# A separate build directory is required.
# Please create one and run cmake from the build directory.
# Also note that cmake has just added files to your source code directory.
# We suggest getting a new copy of the source code.
# Otherwise, delete `CMakeCache.txt' and the directory `CMakeFiles'.
#   ")
# endif ()

# build_docs is OFF (false) by default
if ( build_docs )
   message(STATUS "documents WILL be built and installed" )
else()
   message(STATUS "documents WILL NOT be installed" )
endif()

# various handy macros
include(HepMCVariables)
include(HepMCParseVersion)

# because we want to move these libraries about,
# do not embed full path in shared libraries or executables
set (CMAKE_SKIP_RPATH)

set(CMAKE_CXX_FLAGS     "${CMAKE_CXX_FLAGS}     -ffast-math")

ENABLE_TESTING()

# include search path
include_directories ("${CMAKE_CURRENT_SOURCE_DIR}")

#build all libraries in a single directory to facilitate testing
SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)

# parse the version
hepmc_parse_version()
message(STATUS "${project} version ${version} parses to ${VERSION_MAJOR} ${VERSION_MINOR} ${VERSION_PATCH} ${VERSION_MICRO}" )

# set our preferred compiler flags and other variables
include(CMakeDetermineFortranCompiler)
hepmc_set_compiler_flags()

add_subdirectory(HepMC)
add_subdirectory(src)
add_subdirectory(fio)
add_subdirectory(test)
add_subdirectory(examples)
add_subdirectory(doc)

# Packaging utility
include(HepMCUseCpack)