[SUPERBUILD] fixes for FFTW3

CMake/FindFFTW3.cmake

@@ -0,0 +1,114 @@
+# - Try to find FFTW3.
+# Usage: find_package(FFTW3 [COMPONENTS [single double long-double threads]])
+#
+# Variables used by this module:
+#  FFTW3_ROOT_DIR             - FFTW3 root directory
+# Variables defined by this module:
+#  FFTW3_FOUND                - system has FFTW3
+#  FFTW3_INCLUDE_DIR          - the FFTW3 include directory (cached)
+#  FFTW3_INCLUDE_DIRS         - the FFTW3 include directories
+#                               (identical to FFTW3_INCLUDE_DIR)
+#  FFTW3[FL]?_LIBRARY         - the FFTW3 library - double, single(F), 
+#                               long-double(L) precision (cached)
+#  FFTW3[FL]?_THREADS_LIBRARY - the threaded FFTW3 library - double, single(F), 
+#                               long-double(L) precision (cached)
+#  FFTW3_LIBRARIES            - list of all FFTW3 libraries found
+
+# Copyright (C) 2009-2010
+# ASTRON (Netherlands Institute for Radio Astronomy)
+# P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
+#
+# This file is part of the LOFAR software suite.
+# The LOFAR software suite is free software: you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# The LOFAR software suite is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with the LOFAR software suite. If not, see <http://www.gnu.org/licenses/>.
+#
+# $Id: FindFFTW3.cmake 15918 2010-06-25 11:12:42Z loose $
+
+# Use double precision by default.
+if(FFTW3_FIND_COMPONENTS MATCHES "^$")
+  set(_components double)
+else()
+  set(_components ${FFTW3_FIND_COMPONENTS})
+endif()
+
+# Loop over each component.
+set(_libraries)
+foreach(_comp ${_components})
+  if(_comp STREQUAL "single")
+    list(APPEND _libraries fftw3f)
+  elseif(_comp STREQUAL "double")
+    list(APPEND _libraries fftw3)
+  elseif(_comp STREQUAL "long-double")
+    list(APPEND _libraries fftw3l)
+  elseif(_comp STREQUAL "threads")
+    set(_use_threads ON)
+  else()
+    message(FATAL_ERROR "FindFFTW3: unknown component `${_comp}' specified. "
+      "Valid components are `single', `double', `long-double', and `threads'.")
+  endif()
+endforeach()
+
+# If using threads, we need to link against threaded libraries as well.
+if(_use_threads)
+  set(_thread_libs)
+  foreach(_lib ${_libraries})
+    list(APPEND _thread_libs ${_lib}_threads)
+  endforeach()
+  set(_libraries ${_thread_libs} ${_libraries})
+endif()
+
+# Keep a list of variable names that we need to pass on to
+# find_package_handle_standard_args().
+set(_check_list)
+
+# Search for all requested libraries.
+if (WIN32)
+
+    foreach(_lib ${_libraries})
+
+      string(TOUPPER ${_lib} _LIB)
+
+      find_library(${_LIB}_LIBRARY lib${_lib}-3
+        HINTS $ENV{FFTW3_ROOT_DIR} PATH_SUFFIXES lib)
+      mark_as_advanced(${_LIB}_LIBRARY)
+      list(APPEND FFTW3_LIBRARIES ${${_LIB}_LIBRARY})
+      list(APPEND _check_list ${_LIB}_LIBRARY)
+    endforeach()
+
+    message("FFTW3 WINDOWS libraries: " ${FFTW3_LIBRARIES})
+
+else ()
+    foreach(_lib ${_libraries})
+
+      string(TOUPPER ${_lib} _LIB)
+
+      find_library(${_LIB}_LIBRARY ${_lib}
+        HINTS $ENV{FFTW3_ROOT_DIR} PATH_SUFFIXES lib)
+      mark_as_advanced(${_LIB}_LIBRARY)
+      list(APPEND FFTW3_LIBRARIES ${${_LIB}_LIBRARY})
+      list(APPEND _check_list ${_LIB}_LIBRARY)
+    endforeach()
+
+    message("FFTW3 UNIX libraries: " ${FFTW3_LIBRARIES})
+endif ()
+
+# Search for the header file.
+find_path(FFTW3_INCLUDE_DIR fftw3.h 
+  HINTS $ENV{FFTW3_ROOT_DIR} PATH_SUFFIXES include)
+mark_as_advanced(FFTW3_INCLUDE_DIR)
+list(APPEND _check_list FFTW3_INCLUDE_DIR)
+
+# Handle the QUIETLY and REQUIRED arguments and set FFTW3_FOUND to TRUE if
+# all listed variables are TRUE
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(FFTW3 DEFAULT_MSG ${_check_list})

SuperBuild.cmake

@@ -20,7 +20,7 @@ option(USE_SYSTEM_BOOST "Build using an external version of Boost" OFF)
 option(USE_SYSTEM_STIR "Build using an external version of STIR" OFF)
 option(USE_SYSTEM_HDF5 "Build using an external version of HDF5" OFF)
 option(USE_SYSTEM_ISMRMRD "Build using an external version of ISMRMRD" OFF)
-option(USE_SYSTEM_FFTW "Build using an external version of fftw" OFF)
+option(USE_SYSTEM_FFTW3 "Build using an external version of fftw" OFF)
 option(USE_SYSTEM_SIRF "Build using an external version of SIRF" OFF)
 
 
@@ -37,7 +37,7 @@ ExternalProject_Include_Dependencies(${proj} DEPENDS_VAR ${PRIMARY_PROJECT_NAME}
 message(STATUS "")
 message(STATUS "BOOST_ROOT = " ${BOOST_ROOT})
 message(STATUS "ISMRMRD_ROOT = " ${ISMRMRD_ROOT})
-message(STATUS "FFTW3_ROOT = " ${FFTW3_ROOT})
+message(STATUS "FFTW3_ROOT_DIR = " ${FFTW3_ROOT_DIR})
 message(STATUS "STIR_DIR = " ${STIR_DIR})
 message(STATUS "HDF5_ROOT = " ${HDF5_ROOT})
 message(STATUS "MATLAB_ROOT = " ${MATLAB_ROOT})

SuperBuild/External_FFTW3.cmake

@@ -1,7 +1,7 @@
 #These need to be unique globally
 set(externalProjName FFTW3)
 set(proj FFTW3)
-
+set(proj_COMPONENTS "COMPONENTS single")
 # Set dependency list
 set(${proj}_DEPENDENCIES "")
 
@@ -44,8 +44,8 @@ if(NOT ( DEFINED "USE_SYSTEM_${externalProjName}" AND "${USE_SYSTEM_${externalPr
 
  else()
     if(${USE_SYSTEM_${externalProjName}})
-      find_package(${proj} ${${externalProjName}_REQUIRED_VERSION} REQUIRED)
-      message("USING the system ${externalProjName}, set ${externalProjName}_DIR=${${externalProjName}_DIR}")
+      find_package(${proj} ${${externalProjName}_REQUIRED_VERSION} ${${externalProjName}_COMPONENTS} REQUIRED)
+      message(STATUS "USING the system ${externalProjName}, found FFTW3_INCLUDE_DIR=${FFTW3_INCLUDE_DIR}, FFTW3_LIBRARY=${FFTW3_LIBRARY}")
   endif()
 endif()