cmake: tweaks for EXAALT superbuild, add latte_fix

cmake/CMakeLists.txt

@@ -6,8 +6,8 @@ cmake_minimum_required(VERSION 3.1)
 
 project(lammps)
 set(SOVERSION 0)
-set(LAMMPS_SOURCE_DIR ${CMAKE_SOURCE_DIR}/../src)
-set(LAMMPS_LIB_SOURCE_DIR ${CMAKE_SOURCE_DIR}/../lib)
+set(LAMMPS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../src)
+set(LAMMPS_LIB_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../lib)
 set(LAMMPS_LIB_BINARY_DIR ${CMAKE_BINARY_DIR}/lib)
 
 #To not conflict with old Makefile build system, we build everything here
@@ -16,7 +16,7 @@ file(GLOB LMP_SOURCES ${LAMMPS_SOURCE_DIR}/main.cpp)
 list(REMOVE_ITEM LIB_SOURCES ${LMP_SOURCES})
 
 # Cmake modules/macros are in a subdirectory to keep this file cleaner
-set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/Modules)
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/Modules)
 
 if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
   #release comes with -O3 by default
@@ -85,7 +85,7 @@ option(ENABLE_ALL "Build all default packages" OFF)
 set(DEFAULT_PACKAGES ASPHERE BODY CLASS2 COLLOID COMPRESS CORESHELL DIPOLE GRANULAR
   KSPACE MANYBODY MC MEAM MISC MOLECULE PERI QEQ
   REAX REPLICA RIGID SHOCK SNAP SRD)
-set(OTHER_PACKAGES KIM PYTHON MSCG MPIIO VORONOI POEMS
+set(OTHER_PACKAGES KIM PYTHON MSCG MPIIO VORONOI POEMS LATTE
    USER-ATC USER-AWPMD USER-CGDNA
   USER-CGSDK USER-COLVARS USER-DIFFRACTION USER-DPD USER-DRUDE USER-EFF
   USER-FEP USER-H5MD USER-LB USER-MANIFOLD USER-MEAMC USER-MGPT USER-MISC
@@ -182,7 +182,7 @@ if(ENABLE_PYTHON)
 	  -c "import distutils.sysconfig as cg; print(cg.get_python_lib(1,0,prefix='${CMAKE_INSTALL_PREFIX}'))"
       OUTPUT_VARIABLE PYTHON_INSTDIR OUTPUT_STRIP_TRAILING_WHITESPACE)
   endif()
-  install(FILES ${CMAKE_SOURCE_DIR}/../python/lammps.py DESTINATION ${PYTHON_INSTDIR})
+  install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/../python/lammps.py DESTINATION ${PYTHON_INSTDIR})
   if(NOT BUILD_SHARED_LIBS)
     message(FATAL_ERROR "Python package need lammps to be build shared, use -DBUILD_SHARED_LIBS=ON")
   endif()
@@ -221,6 +221,11 @@ if(ENABLE_VORONOI)
   list(APPEND LAMMPS_LINK_LIBS ${VORO_LIBRARIES})
 endif()
 
+if(ENABLE_LATTE)
+  find_package(LATTE REQUIRED)
+  list(APPEND LAMMPS_LINK_LIBS ${LATTE_LIBRARIES})
+endif()
+
 if(ENABLE_USER-MOLFILE)
   list(APPEND LAMMPS_LINK_LIBS ${CMAKE_DL_LIBS})
 endif()
@@ -477,7 +482,7 @@ if(ENABLE_GPU)
     get_property(GPU_SOURCES GLOBAL PROPERTY GPU_SOURCES)
     
     file(GLOB GPU_LIB_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/gpu/*.cpp)
-    file(GLOB GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/*.cu ${CMAKE_SOURCE_DIR}/gpu/*.cu)
+    file(GLOB GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/*.cu ${CMAKE_CURRENT_SOURCE_DIR}/gpu/*.cu)
     file(GLOB_RECURSE GPU_NOT_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_pppm.cu)
     list(REMOVE_ITEM GPU_LIB_CU ${GPU_NOT_LIB_CU})
     include_directories(${GPU_SOURCES_DIR} ${LAMMPS_LIB_SOURCE_DIR}/gpu ${LAMMPS_LIB_BINARY_DIR}/gpu)

cmake/Modules/FindLATTE.cmake

@@ -0,0 +1,18 @@
+# - Find latte
+# Find the native LATTE libraries.
+#
+#  LATTE_LIBRARIES    - List of libraries when using fftw3.
+#  LATTE_FOUND        - True if fftw3 found.
+#
+
+find_library(LATTE_LIBRARY NAMES latte)
+
+set(LATTE_LIBRARIES ${LATTE_LIBRARY})
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LATTE_FOUND to TRUE
+# if all listed variables are TRUE
+
+find_package_handle_standard_args(LATTE DEFAULT_MSG LATTE_LIBRARY)
+
+mark_as_advanced(LATTE_LIBRARY)