From 1c5add8e69db451811ad96bb5be87e9f4810a632 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Keck <Jean-Baptiste.Keck@imag.fr>
Date: Sat, 20 Feb 2016 15:19:20 +0100
Subject: [PATCH] Updated FindFFTW.cmake to handle extra libraries.
---
CMake/FindFFTW.cmake | 223 ++++++++++++++++++++++++++++++-------------
1 file changed, 158 insertions(+), 65 deletions(-)
diff --git a/CMake/FindFFTW.cmake b/CMake/FindFFTW.cmake
index 6c20112d5..37f7c7152 100644
--- a/CMake/FindFFTW.cmake
+++ b/CMake/FindFFTW.cmake
@@ -8,80 +8,173 @@
# Set fftw_DIR=where_fftw_is_installed if it's not in a "classic" place or if you want a specific version
#
# Written by F. Pérignon, nov/2009
+# Updated by J-B. Keck, feb/2016
# inspired from http://www.cmake.org/Wiki/CMake:How_To_Find_Libraries
-include(LibFindMacros)
+find_package(PkgConfig)
-# Use pkg-config to get hints about paths
-libfind_pkg_check_modules(FFTW_PKGCONF fftw3)
+# --version check not supported yet
+set(FFTW_VERSION_STRING ${FFTW_FIND_VERSION})
-# Include dir
-# -- user-defined
-find_path(
- FFTW_INCLUDE_DIR
- NAMES fftw3.h
- #NO_CMAKE_ENVIRONMENT_PATH
- PATHS ${fftw_DIR} PATHS ENV INCLUDE ENV PATH ${FFTW_PKGCONF_INCLUDE_DIRS}
- PATH_SUFFIXES include
- NO_DEFAULT_PATH
- )
-# -- default
-find_path(FFTW_INCLUDE_DIR NAMES fftw3.h)
+# --main variables generated by this module
+list(APPEND FFTW_INCLUDE_DIRS "")
+list(APPEND FFTW_LIBRARY_DIRS "")
+list(APPEND FFTW_LIBRARIES "")
+
+if(FIND_FFTW_VERBOSE)
+ message(STATUS "Entering FindFFTW.cmake in verbose mode:")
+endif()
-# Finally the library itself
-find_library(
- FFTW_LIBRARY
- NAMES fftw3
- PATHS ${fftw_DIR} ${FFTW_INCLUDE_DIR}/.. ENV LIBRARY_PATH ENV LD_LIBRARY_PATH ${FFTW_PKGCONF_LIBRARY_DIRS}
- PATH_SUFFIXES lib
- NO_DEFAULT_PATH
-)
+foreach(fftw_comp ${FFTW_FIND_COMPONENTS})
+ string(REPLACE "-" "_" fftw_comp_no_dash "${fftw_comp}")
+ string(TOLOWER ${fftw_comp_no_dash} component)
+ string(TOUPPER ${fftw_comp_no_dash} COMPONENT)
-find_library(FFTW_LIBRARY
- NAMES fftw3
- )
+ # -- check if component has not already been found
+ if(${COMPONENT}_FOUND)
+ continue()
+ endif()
-# Finally the library itself, mpi version
-find_library(
- FFTW_MPI_LIBRARY
- NAMES fftw3_mpi
- PATHS ${fftw_DIR} ${FFTW_INCLUDE_DIR}/.. ENV LIBRARY_PATH ENV LD_LIBRARY_PATH ${FFTW_PKGCONF_LIBRARY_DIRS}
- PATH_SUFFIXES lib
- NO_DEFAULT_PATH
-)
+ # -- find header name given the component name
+ string(REGEX REPLACE "_(omp|threads)" "" component_without_ext "${component}")
+ string(REGEX REPLACE "_mpi" "-mpi" component_without_ext "${component_without_ext}")
+ string(REGEX REPLACE "fftw3[fdlq]" "fftw3" header "${component_without_ext}.h")
-find_library(FFTW_MPI_LIBRARY
- NAMES fftw3_mpi
-)
+ # -- find library name given the component name
+ string(REPLACE "fftw3d" "fftw3" library "${component}")
+
+ if(FIND_FFTW_DEBUG)
+ message("\tFFTW::${fftw_comp}:${COMPONENT}:${component}, LIB=${library} HEADER=${header}")
+ endif()
+
+ # -- use pkg-config to get hints about paths
+ pkg_check_modules(${COMPONENT}_PKGCONF ${library} ${header} QUIET)
-# Finally the library itself, float version
-find_library(
- FFTWFloat_LIBRARY
- NAMES fftw3f
- PATHS ${fftw_DIR} ENV LIBRARY_PATH ENV LD_LIBRARY_PATH ${FFTW_PKGCONF_LIBRARY_DIRS}
- PATH_SUFFIXES lib
- NO_DEFAULT_PATH
-)
-find_library(FFTWFloat_LIBRARY
- NAMES fftw3f
- )
+ # -- find include dir
+ find_path(
+ ${COMPONENT}_INCLUDE_DIR
+ NAMES ${header}
+ PATHS ${FFTW_INCLUDE_DIRS}
+ NO_DEFAULT_PATH
+ )
+ find_path(
+ ${COMPONENT}_INCLUDE_DIR
+ NAMES ${header}
+ PATHS ${fftw_DIR}
+ PATHS ${${COMPONENT}_PKGCONF_INCLUDE_DIRS}
+ PATHS ENV INCLUDE
+ ENV PATH
+ ENV C_INCLUDE_PATH
+ PATH_SUFFIXES include
+ NO_DEFAULT_PATH
+ )
+ # -- search in default locations only if last search failed
+ find_path(FFTW_INCLUDE_DIR NAMES ${header})
-# Finally the library itself, float and mpi version
-find_library(
- FFTWFloat_MPI_LIBRARY
- NAMES fftw3f_mpi
- PATHS ${fftw_DIR} ENV LIBRARY_PATH ENV LD_LIBRARY_PATH ${FFTW_PKGCONF_LIBRARY_DIRS}
- PATH_SUFFIXES lib
- NO_DEFAULT_PATH
-)
-find_library(FFTWFloat_MPI_LIBRARY
- NAMES fftw3f_mpi
- )
+ if(${${COMPONENT}_INCLUDE_DIR} STREQUAL "${COMPONENT}_INCLUDE_DIR-NOTFOUND")
+ set(INCLUDE_DIR_FOUND FALSE)
+ else()
+ set(INCLUDE_DIR_FOUND TRUE)
+ endif()
-#other types for the CXX library
-find_library(FFTWLongDouble_LIBRARY NAMES fftw3l)
-find_library(FFTW__float128_LIBRARY NAMES fftw3q)
+ # -- find library
+ find_library(
+ ${COMPONENT}_LIBRARY
+ NAMES ${library}
+ PATHS ${FFTW_LIBRARY_DIRS}
+ NO_DEFAULT_PATH
+ )
+ find_library(
+ ${COMPONENT}_LIBRARY
+ NAMES ${library}
+ PATHS ${fftw_DIR}
+ PATHS ${${COMPONENT}_INCLUDE_DIR}/..
+ PATHS ${${COMPONENT}_PKGCONF_LIBRARY_DIRS}}
+ PATHS ENV LIBRARY_PATH
+ ENV LD_LIBRARY_PATH
+ ENV DYLD_LIBRARY_PATH
+ PATH_SUFFIXES lib
+ NO_DEFAULT_PATH
+ )
+ # -- default locations
+ find_library(${COMPONENT}_LIBRARY NAMES ${library})
+
+ # -- if component is required append it to required vars
+ if(FFTW_FIND_REQUIRED_${fftw_comp})
+ list(APPEND FFTW_REQUIRED_INCLUDE_DIRS ${COMPONENT}_INCLUDE_DIR)
+ list(APPEND FFTW_REQUIRED_LIBRARIES ${COMPONENT}_LIBRARY)
+ endif()
-set(FFTW_PROCESS_INCLUDES FFTW_INCLUDE_DIR)
-set(FFTW_PROCESS_LIBS FFTW_LIBRARY FFTWFloat_LIBRARY FFTW_MPI_LIBRARY FFTWFloat_MPI_LIBRARY FFTWLongDouble_LIBRARY FFTW__float128_LIBRARY)
-libfind_process(FFTW)
+ # --extract library dir and library name
+ if(${${COMPONENT}_LIBRARY} STREQUAL "${COMPONENT}_LIBRARY-NOTFOUND")
+ set(LIBRARY_DIR_FOUND FALSE)
+ else()
+ get_filename_component(${COMPONENT}_LIBRARY_DIR "${${COMPONENT}_LIBRARY}" DIRECTORY)
+ set(${COMPONENT}_LIBRARY "${library}")
+ set(LIBRARY_DIR_FOUND TRUE)
+ endif()
+
+ # -- find quadmath library if required
+ string(FIND ${component} "fftw3q" FFTWQ_POS)
+ if(FFTWQ_POS EQUAL 0)
+ list(APPEND FFTW_LIBRARIES "quadmath")
+ endif()
+
+ if(LIBRARY_DIR_FOUND AND INCLUDE_DIR_FOUND)
+ set(${COMPONENT}_FOUND TRUE)
+ list(APPEND ${COMPONENT}_INCLUDE_DIRS ${${COMPONENT}_INCLUDE_DIR})
+ list(APPEND ${COMPONENT}_LIBRARY_DIRS ${${COMPONENT}_LIBRARY_DIR})
+ list(APPEND ${COMPONENT}_LIBRARIES ${${COMPONENT}_LIBRARY})
+
+ list(APPEND FFTW_INCLUDE_DIRS ${${COMPONENT}_INCLUDE_DIRS})
+ list(APPEND FFTW_LIBRARY_DIRS ${${COMPONENT}_LIBRARY_DIRS})
+ list(APPEND FFTW_LIBRARIES ${${COMPONENT}_LIBRARIES})
+
+ if(FIND_FFTW_VERBOSE)
+ message("\tFound FFTW::${fftw_comp} with parameters '-I${${COMPONENT}_INCLUDE_DIR} -L${${COMPONENT}_LIBRARY_DIR} -l${${COMPONENT}_LIBRARY}'.")
+ endif()
+ else()
+ set(${COMPONENT}_FOUND FALSE)
+ if(FFTW_FIND_REQUIRED_${fftw_comp})
+ if(NOT FFTW_FIND_QUIETLY)
+ message(FATAL_ERROR "Error: Could not find required component FFTW::${fftw_comp} (${COMPONENT}_INCLUDE_DIR='${${COMPONENT}_INCLUDE_DIR}' and ${COMPONENT}_LIBRARY='${${COMPONENT}_LIBRARY}'.)")
+ endif()
+ else()
+ if(FIND_FFTW_VERBOSE)
+ message("\tCould not find optional FFTW::${fftw_comp}.")
+ endif()
+ if(FIND_FFTW_DEBUG)
+ message(STATUS "\t\t${COMPONENT}_INCLUDE_DIR='${${COMPONENT}_INCLUDE_DIR}' and ${COMPONENT}_LIBRARY='${${COMPONENT}_LIBRARY}'")
+ endif()
+ endif()
+ endif()
+
+ unset(${COMPONENT}_INCLUDE_DIR)
+ unset(${COMPONENT}_LIBRARY_DIR)
+ unset(${COMPONENT}_LIBRARY)
+ unset(FFTWQ_POS)
+ unset(library)
+ unset(header)
+ unset(fftw_comp_no_dash)
+ unset(component)
+ unset(COMPONENT)
+endforeach()
+
+list(REMOVE_DUPLICATES FFTW_INCLUDE_DIRS)
+list(REMOVE_DUPLICATES FFTW_LIBRARY_DIRS)
+list(REMOVE_DUPLICATES FFTW_LIBRARIES)
+
+# -- check required variables, version and set FFTW_FOUND to TRUE if ok
+find_package_handle_standard_args(FFTW FOUND_VAR FFTW_FOUND
+ REQUIRED_VARS ${FFTW_REQUIRED_LIBRARIES} ${FFTW_REQUIRED_INCLUDE_DIRS}
+ VERSION_VAR FFTW_VERSION_STRING)
+
+if(FIND_FFTW_DEBUG)
+ message(STATUS "FFTW_FOUND='${FFTW_FOUND}'")
+ message(STATUS "FFTW_INCLUDE_DIRS='${FFTW_INCLUDE_DIRS}'")
+ message(STATUS "FFTW_LIBRARY_DIRS='${FFTW_LIBRARY_DIRS}'")
+ message(STATUS "FFTW_LIBRARIES='${FFTW_LIBRARIES}'")
+endif()
+
+unset(FFTW_REQUIRED_LIBRARIES)
+unset(FFTW_REQUIRED_INCLUDE_DIRS)
--
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