Import upstream version 0.99.2

[fmit.git] / cmake / FindFFTW3.cmake

diff --git a/cmake/FindFFTW3.cmake b/cmake/FindFFTW3.cmake
new file mode 100644 (file)
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+##------------------------------------------------------------------------------
+## $Id: FindFFTW3.cmake,v 1.3 2011/01/04 23:31:32 norwin Exp $
+##------------------------------------------------------------------------------
+
+# - Check for the presence of FFTW3
+#
+# The following variables are set when FFTW3 is found:
+#  HAVE_FFTW3       = Set to true, if all components of FFTW3
+#                          have been found.
+#  FFTW3_INCLUDES = Include path for the header files of FFTW3
+#  FFTW3_LIBRARIES     = Link these to use FFTW3
+
+## -----------------------------------------------------------------------------
+## Check for the header files
+
+FIND_PATH (FFTW3_INCLUDES fftw3.h
+  PATHS /usr/local/include /usr/include /sw/include
+  )
+
+## -----------------------------------------------------------------------------
+## Check for the library
+
+FIND_LIBRARY (FFTW3_LIBRARIES fftw3 fftw
+  PATHS /usr/local/lib /usr/lib /lib /sw/lib
+  )
+
+## -----------------------------------------------------------------------------
+## Actions taken when all components have been found
+
+IF (FFTW3_INCLUDES AND FFTW3_LIBRARIES)
+  SET (HAVE_FFTW3 TRUE)
+ELSE (FFTW3_INCLUDES AND FFTW3_LIBRARIES)
+  IF (NOT FFTW3_FIND_QUIETLY)
+    IF (NOT FFTW3_INCLUDES)
+      MESSAGE (STATUS "Unable to find FFTW3 header files!")
+    ENDIF (NOT FFTW3_INCLUDES)
+    IF (NOT FFTW3_LIBRARIES)
+      MESSAGE (STATUS "Unable to find FFTW3 library files!")
+    ENDIF (NOT FFTW3_LIBRARIES)
+  ENDIF (NOT FFTW3_FIND_QUIETLY)
+ENDIF (FFTW3_INCLUDES AND FFTW3_LIBRARIES)
+
+IF (HAVE_FFTW3)
+  IF (NOT FFTW3_FIND_QUIETLY)
+    MESSAGE (STATUS "Found components for FFTW3")
+    MESSAGE (STATUS "FFTW3_INCLUDES  = ${FFTW3_INCLUDES}")
+    MESSAGE (STATUS "FFTW3_LIBRARIES = ${FFTW3_LIBRARIES}")
+  ENDIF (NOT FFTW3_FIND_QUIETLY)
+ELSE (HAVE_FFTW3)
+  IF (FFTW3_FIND_REQUIRED)
+    MESSAGE (FATAL_ERROR "Can not find FFTW3 library !")
+  ENDIF (FFTW3_FIND_REQUIRED)
+ENDIF (HAVE_FFTW3)
+
+## ------------------------------------------------------------------------------
+## Mark as advanced ...