CMakeLists.txt

cmake_minimum_required(VERSION 3.14)
project(AMReX)
enable_language(C) # needed for find_package(MPI REQUIRED "C")
enable_language(CXX)
enable_language(Fortran)

#
# Load required modules 
#
set( AMREX_CMAKE_MODULES_PATH "${CMAKE_CURRENT_LIST_DIR}/Tools/CMake" CACHE INTERNAL "" )
set( CMAKE_MODULE_PATH ${AMREX_CMAKE_MODULES_PATH} )

#
# Provide a default install directory
#
if ( CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT )
   set ( CMAKE_INSTALL_PREFIX "${PROJECT_SOURCE_DIR}/installdir"
      CACHE PATH "AMReX installation directory" FORCE)
endif ()

#
# Include options, utilities and other stuff we need
# 
include( AMReX_Utils )
include( AMReX_Options )
include( AMReX_Machines )

#
# Enable CUDA if requested
#
if (ENABLE_CUDA)
   include(AMReX_SetupCUDA)
endif ()

#
# Set CMAKE_<LANG>_FLAGS_<CONFIG> if not already defined
# 
set_default_config_flags ()

# 
# Set variable for AMReX versioning
#
find_package (Git QUIET)

set ( TMP "" )

if ( EXISTS ${CMAKE_SOURCE_DIR}/.git AND ${GIT_FOUND} )
   execute_process ( COMMAND git describe --abbrev=12 --dirty --always --tags
      WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
      OUTPUT_VARIABLE TMP )
   string ( STRIP ${TMP} TMP )
else ()
   # Grep first line from file CHANGES if AMREX_GIT_VERSION is not
   # provided
   file(STRINGS ${PROJECT_SOURCE_DIR}/CHANGES ALL_VERSIONS REGEX "#")
   list(GET ALL_VERSIONS 0 TMP)
   string(REPLACE "#" "" TMP "${TMP}")
   string (STRIP "${TMP}" TMP )
   set (TMP "${TMP}.0")
endif ()

set ( AMREX_GIT_VERSION "${TMP}" CACHE INTERNAL "" )
unset (TMP)

# 
# Source files for all binaries and libraries found under src
# 
add_subdirectory(Src)

#
# Tutorials and "test_install" target
#
option(ENABLE_TUTORIALS "Enable Tutorials" NO)

if (ENABLE_TUTORIALS)
   add_subdirectory(Tutorials)
endif ()

#
# Plotfile tools
#
option(ENABLE_PLOTFILE_TOOLS "Enable Plotfile tools" NO)

if (ENABLE_PLOTFILE_TOOLS)
   # If this get executed, it cannot be EXCLUDED_FROM_ALL
   # because it needs to get installed
   add_subdirectory(Tools/Plotfile)
endif ()