remove some finders so that finders shipped with cmake are used

cmake/FindGMP.cmake

-# Try to find the GMP libraries
-# GMP_FOUND - system has GMP lib
-# GMP_INCLUDE_DIR - the GMP include directory
-# GMP_LIBRARY_DIR - Directory where the GMP libraries are located
-# GMP_LIBRARIES - the GMP libraries
-# GMP_IN_CGAL_AUXILIARY - TRUE if the GMP found is the one distributed with CGAL in the auxiliary folder
-
-# TODO: support MacOSX
-
-include(CGAL_FindPackageHandleStandardArgs)
-include(CGAL_GeneratorSpecificSettings)
-
-# Is it already configured?
-if (GMP_INCLUDE_DIR AND GMP_LIBRARY_DIR ) 
-   
-  set(GMP_FOUND TRUE)
-  
-else()  
-  find_package(CGAL)
-  if (NOT CGAL_FOUND)
-    message(STATUS "CGAL not found .. required to use taucs!")
-    set(GMP_FOUND FALSE)
-  else ()
-    find_path(GMP_INCLUDE_DIR 
-              NAMES gmp.h
-              PATHS "${CGAL_INCLUDE_DIR}/../auxiliary/gmp/include"
-                  DOC "The directory containing the GMP header files"
-             )
-
-    if ( GMP_INCLUDE_DIR STREQUAL "${CMAKE_SOURCE_DIR}/auxiliary/gmp/include" )
-      cache_set( GMP_IN_CGAL_AUXILIARY TRUE )
-    endif()
-    
-    if ( CGAL_AUTO_LINK_ENABLED )
-		message("AAAA")
-      find_path(GMP_LIBRARY_DIR 
-                NAMES "gmp-${CGAL_TOOLSET}-mt.lib" "gmp-${CGAL_TOOLSET}-mt-gd.lib" libgmp-10.lib
-                PATHS "${CGAL_INCLUDE_DIR}/../auxiliary/gmp/lib"
-                DOC "Directory containing the GMP library"
-               )
-      
-	    list ( APPEND GMP_LIBRARIES libgmp-10.lib;libmpfr-4.lib )	    
-    else()
-    
-      find_library(GMP_LIBRARIES NAMES gmp 
-                   PATHS ENV GMP_LIB_DIR
-                   DOC "Path to the GMP library"
-                  )
-                  
-      if ( GMP_LIBRARIES ) 
-        get_filename_component(GMP_LIBRARY_DIR ${GMP_LIBRARIES} PATH CACHE )
-      endif()
-      
-    endif()  
-      
-    # Attempt to load a user-defined configuration for GMP if couldn't be found
-    if ( NOT GMP_INCLUDE_DIR OR NOT GMP_LIBRARY_DIR )
-      include( GMPConfig OPTIONAL )
-    endif()
-    
-    find_package_handle_standard_args(GMP "DEFAULT_MSG" GMP_INCLUDE_DIR GMP_LIBRARY_DIR)
-
-  endif()
-endif()

cmake/FindMPFR.cmake

-# Try to find the MPFR library
-# See http://www.mpfr.org/
-#
-# This module supports requiring a minimum version, e.g. you can do
-# find_package(MPFR 2.3.0)
-# to require version 2.3.0 to newer of MPFR.
-#
-# Once done this will define
-#
-# MPFR_FOUND - system has MPFR lib with correct version
-# MPFR_INCLUDES - the MPFR include directory
-# MPFR_LIBRARIES - the MPFR library
-# MPFR_VERSION - MPFR version
-
-# Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org>
-# Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr>
-# Copyright (c) 2010 Jitse Niesen, <jitse@maths.leeds.ac.uk>
-# Redistribution and use is allowed according to the terms of the BSD license.
-
-# Set MPFR_INCLUDES
-
-find_package(CGAL)
-
-find_path(MPFR_INCLUDES
-NAMES
-mpfr.h
-PATHS
-$ENV{GMPDIR}
-${INCLUDE_INSTALL_DIR}
-${CGAL_INCLUDE_DIR}/../auxiliary/gmp/include
-)
-
-# Set MPFR_FIND_VERSION to 1.0.0 if no minimum version is specified
-if(NOT MPFR_FIND_VERSION)
-if(NOT MPFR_FIND_VERSION_MAJOR)
-set(MPFR_FIND_VERSION_MAJOR 1)
-endif(NOT MPFR_FIND_VERSION_MAJOR)
-if(NOT MPFR_FIND_VERSION_MINOR)
-set(MPFR_FIND_VERSION_MINOR 0)
-endif(NOT MPFR_FIND_VERSION_MINOR)
-if(NOT MPFR_FIND_VERSION_PATCH)
-set(MPFR_FIND_VERSION_PATCH 0)
-endif(NOT MPFR_FIND_VERSION_PATCH)
-
-set(MPFR_FIND_VERSION "${MPFR_FIND_VERSION_MAJOR}.${MPFR_FIND_VERSION_MINOR}.${MPFR_FIND_VERSION_PATCH}")
-endif(NOT MPFR_FIND_VERSION)
-
-
-if(MPFR_INCLUDES)
-
-# Set MPFR_VERSION
-
-file(READ "${MPFR_INCLUDES}/mpfr.h" _mpfr_version_header)
-
-string(REGEX MATCH "define[ \t]+MPFR_VERSION_MAJOR[ \t]+([0-9]+)" _mpfr_major_version_match "${_mpfr_version_header}")
-set(MPFR_MAJOR_VERSION "${CMAKE_MATCH_1}")
-string(REGEX MATCH "define[ \t]+MPFR_VERSION_MINOR[ \t]+([0-9]+)" _mpfr_minor_version_match "${_mpfr_version_header}")
-set(MPFR_MINOR_VERSION "${CMAKE_MATCH_1}")
-string(REGEX MATCH "define[ \t]+MPFR_VERSION_PATCHLEVEL[ \t]+([0-9]+)" _mpfr_patchlevel_version_match "${_mpfr_version_header}")
-set(MPFR_PATCHLEVEL_VERSION "${CMAKE_MATCH_1}")
-
-set(MPFR_VERSION ${MPFR_MAJOR_VERSION}.${MPFR_MINOR_VERSION}.${MPFR_PATCHLEVEL_VERSION})
-
-
-# Check whether found version exceeds minimum version
-
-if(${MPFR_VERSION} VERSION_LESS ${MPFR_FIND_VERSION})
-set(MPFR_VERSION_OK FALSE)
-message(STATUS "MPFR version ${MPFR_VERSION} found in ${MPFR_INCLUDES}, "
-"but at least version ${MPFR_FIND_VERSION} is required")
-else(${MPFR_VERSION} VERSION_LESS ${MPFR_FIND_VERSION})
-set(MPFR_VERSION_OK TRUE)
-endif(${MPFR_VERSION} VERSION_LESS ${MPFR_FIND_VERSION})
-
-endif(MPFR_INCLUDES)
-
-# Set MPFR_LIBRARIES
-find_library(MPFR_LIBRARIES mpfr libmpfr-4 PATHS $ENV{GMPDIR} ${LIB_INSTALL_DIR} ${CGAL_INCLUDE_DIR}/../auxiliary/gmp/lib)
-
-# Epilogue
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(MPFR DEFAULT_MSG
-MPFR_INCLUDES MPFR_LIBRARIES MPFR_VERSION_OK)
-mark_as_advanced(MPFR_INCLUDES MPFR_LIBRARIES)

cmake/FindTaucs.cmake

-# - Find TAUCS
-# Find the native TAUCS headers and libraries.
-#
-#  TAUCS_INCLUDE_DIR -  where to find TAUCS.h, etc.
-#  TAUCS_LIBRARY     - List of libraries when using TAUCS.
-#  TAUCS_FOUND       - True if TAUCS found.
-
-IF (TAUCS_INCLUDE_DIR)
-  # Already in cache, be silent
-  SET(TAUCS_FIND_QUIETLY TRUE)
-ENDIF (TAUCS_INCLUDE_DIR)
-
-
-# Look for the header file.
-IF(WIN32)
-      find_package(CGAL)
-	if (NOT CGAL_FOUND)
-	  message(STATUS "CGAL not found .. required to use taucs!")
-	endif()
-	 
-	FIND_PATH(TAUCS_INCLUDE_DIR NAMES taucs.h
-                PATHS  "${CGAL_TAUCS_DIR}/include" )
-				
-ELSE(WIN32)
-
-    IF(APPLE)
-	FIND_PATH(TAUCS_INCLUDE_DIR NAMES taucs.h
-                  PATHS "${CMAKE_SOURCE_DIR}/MacOS/Libs/taucs/src" 
-                        ~/sw/taucs/include
-                 )
-
-    ELSE (APPLE)
-
-	FIND_PATH(TAUCS_INCLUDE_DIR NAMES taucs.h
-                  PATHS  /ACG/acgdev/gcc-4.3-x86_64/taucs-2.2-gfortran/include
-                 )
-
-    ENDIF(APPLE)
-
-
-ENDIF(WIN32)
-
-# Copy the results to the output variables.
-IF(TAUCS_INCLUDE_DIR )
-  SET(TAUCS_FOUND 1)
-  SET(TAUCS_INCLUDE_DIR ${TAUCS_INCLUDE_DIR})
-
-  IF(WIN32)
-#	find_package(CGAL)
-	SET(TAUCS_LIBRARY "${CGAL_TAUCS_DIR}/lib/libtaucs.lib" )
-  ELSE(WIN32)
-    IF(APPLE)
-	    FIND_LIBRARY( TAUCS_LIBRARY
-        	          NAMES taucs
-                	  PATHS "${CMAKE_SOURCE_DIR}/MacOS/Libs/taucs/lib/darwin9.0" 
-                                ~/sw/taucs/lib/darwin11
-	               )	
-    ELSE (APPLE)
- 	   FIND_LIBRARY( TAUCS_LIBRARY
-        	          NAMES taucs 
-                	  PATHS /ACG/acgdev/gcc-4.3-x86_64/taucs-2.2.new/lib
-	               )
-    ENDIF( APPLE)
-  ENDIF(WIN32)
-  
-ELSE(TAUCS_INCLUDE_DIR )
-  SET(TAUCS_FOUND 0)
-  SET(TAUCS_INCLUDE_DIR)
-ENDIF(TAUCS_INCLUDE_DIR )
-
-# Report the results.
-IF(NOT TAUCS_FOUND)
-  SET(TAUCS_DIR_MESSAGE
-    "TAUCS was not found. Make sure TAUCS_INCLUDE_DIR is set to the directories containing the include and lib files for TAUCS. .")
-  IF(TAUCS_FIND_REQUIRED)
-      MESSAGE(FATAL_ERROR "${TAUCS_DIR_MESSAGE}")
-  ELSEIF(NOT TAUCS_FIND_QUIETLY)
-    MESSAGE(STATUS "${TAUCS_DIR_MESSAGE}")
-  ELSE(NOT TAUCS_FIND_QUIETLY)
-  ENDIF(TAUCS_FIND_REQUIRED)
-ELSE (NOT TAUCS_FOUND)
-  IF(NOT TAUCS_FIND_QUIETLY)
-    MESSAGE(STATUS "Looking for TAUCS - found")
-  ENDIF(NOT TAUCS_FIND_QUIETLY)
-  IF ( NOT WIN32 )
-    SET(TAUCS_LIBRARY "${TAUCS_LIBRARY};metis")
-  ELSE  ( NOT WIN32 )
-    SET(TAUCS_LIBRARY "${TAUCS_LIBRARY}")
-  ENDIF( NOT WIN32 )
-ENDIF(NOT TAUCS_FOUND)
-