cmake: initial commit

.gitignore

@@ -32,3 +32,11 @@ log.cite
 .Trashes
 ehthumbs.db
 Thumbs.db
+
+#cmake
+/build*
+/CMakeCache.txt
+/CMakeFiles/
+/Makefile
+/cmake_install.cmake
+/lmp

CMakeLists.txt

@@ -0,0 +1,84 @@
+cmake_minimum_required(VERSION 3.1)
+
+project(lammps)
+set(SOVERSION 0)
+
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_C_FLAGS)
+  #release comes with -O3 by default
+  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." FORCE)
+endif(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_C_FLAGS)
+
+enable_language(CXX)
+
+######################################################################
+# compiler tests
+# these need ot be done early (before further tests).
+#####################################################################
+
+include(CheckCCompilerFlag)
+
+########################################################################
+# User input options                                                   #
+########################################################################
+option(BUILD_SHARED_LIBS "Build shared libs" OFF)
+include(GNUInstallDirs)
+
+option(ENABLE_MPI "Build MPI version" OFF)
+if(ENABLE_MPI)
+  find_package(MPI)
+  include_directories(${MPI_C_INCLUDE_PATH})
+  set(MPI_SOURCES)
+else()
+  file(GLOB MPI_SOURCES src/STUBS/mpi.c)
+  include_directories(src/STUBS)
+  set(MPI_CXX_LIBRARIES)
+endif()
+
+find_package(UnixCommands)
+
+option(CMAKE_VERBOSE_MAKEFILE "Verbose makefile" OFF)
+
+########################################################################
+# Basic system tests (standard libraries, headers, functions, types)   #
+########################################################################
+include(CheckIncludeFile)
+foreach(HEADER math.h)
+  check_include_file(${HEADER} FOUND_${HEADER})
+  if(NOT FOUND_${HEADER})
+    message(FATAL_ERROR "Could not find needed header - ${HEADER}")
+  endif(NOT FOUND_${HEADER})
+endforeach(HEADER)
+
+set(MATH_LIBRARIES "m" CACHE STRING "math library")
+mark_as_advanced( MATH_LIBRARIES )
+include(CheckLibraryExists)
+foreach(FUNC sin cos)
+  check_library_exists(${MATH_LIBRARIES} ${FUNC} "" FOUND_${FUNC}_${MATH_LIBRARIES})
+  if(NOT FOUND_${FUNC}_${MATH_LIBRARIES})
+    message(FATAL_ERROR "Could not find needed math function - ${FUNC}")
+  endif(NOT FOUND_${FUNC}_${MATH_LIBRARIES})
+endforeach(FUNC)
+
+######################################
+# Include the following subdirectory # 
+######################################
+
+#Do NOT go into src to not conflict with old Makefile build system
+#add_subdirectory(src)
+
+file(GLOB LIB_SOURCES src/*.cpp)
+file(GLOB LMP_SOURCES src/main.cpp)
+list(REMOVE_ITEM LIB_SOURCES ${LMP_SOURCES})
+
+add_custom_target(style COMMAND ${BASH} Make.sh style WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/src)
+add_library(lammps ${LIB_SOURCES} ${MPI_SOURCES})
+add_dependencies(lammps style)
+# better but slower
+#add_custom_command(TARGET lammps PRE_BUILD COMMAND ${BASH} Make.sh style WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/src)
+target_link_libraries(lammps ${MPI_CXX_LIBRARIES} ${MATH_LIBRARIES})
+set_target_properties(lammps PROPERTIES SOVERSION ${SOVERSION})
+install(TARGETS lammps LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+add_executable(lmp ${LMP_SOURCES})
+target_link_libraries(lmp lammps)
+install(TARGETS lammps DESTINATION ${CMAKE_INSTALL_BINDIR})