cmake ok for macos without fftw

HySoP/CMakeLists.txt

@@ -34,6 +34,7 @@ option(WITH_PPM "link Parmes with PPM library (core component). Default = off."
 option(WITH_PPMNumerics "link Parmes with PPM-numerics. Default = off" OFF)
 option(WITH_TESTS "Enable testing. Default = off" OFF)
 option(BUILD_SHARED_LIBS "Enable dynamic library build, default = ON" ON)
+option(WITH_FFTW "Link with fftw library (required for some Parmes solvers), default = ON" ON)
 
 # cmake project name
 set(PROJECT_NAME parmepy)
@@ -83,6 +84,7 @@ set(CMAKE_INSTALL_PREFIX ${${PROJECT_NAME}_INSTALL_DIR})
 # The file __init__.py will be generated from __init__.py.in.
 if(EXISTS ${CMAKE_SOURCE_DIR}/parmepy/__init__.py.in)
   message(STATUS "Generate __init__.py file ...")
+  file(REMOVE ${CMAKE_SOURCE_DIR}/parmepy/__init__.py)
   configure_file(parmepy/__init__.py.in ${CMAKE_SOURCE_DIR}/parmepy/__init__.py)
 endif()
 
@@ -124,6 +126,7 @@ if(VERBOSE_MODE)
   message(STATUS " Sources are in : ${CMAKE_SOURCE_DIR}")
   message(STATUS " Project uses MPI : ${USE_MPI}")
   message(STATUS " Project uses Scales : ${WITH_SCALES}")
+  message(STATUS " Project uses FFTW : ${WITH_FFTW}")
   message(STATUS " Project uses PPM : ${WITH_PPM}")
   message(STATUS " Python packages will be installed in ${${PROJECT_NAME}_INSTALL_DIR}")
   message(STATUS "====================== ======= ======================")

HySoP/hysop/__init__.py.in

@@ -11,7 +11,10 @@ import os
 import site
 import mpi4py.MPI as MPI
 
-os.environ['LD_LIBRARY_PATH'] = os.environ['LD_LIBRARY_PATH']+':'+"@CMAKE_INSTALL_PREFIX@"
+if(os.environ.has_key('LD_LIBRARY_PATH')):
+    os.environ['LD_LIBRARY_PATH'] = os.environ['LD_LIBRARY_PATH']+':'+"@CMAKE_INSTALL_PREFIX@"
+else:
+    os.environ['LD_LIBRARY_PATH'] = "@CMAKE_INSTALL_PREFIX@"
 
 rank_world = MPI.COMM_WORLD.Get_rank()
 if(rank_world == 0):