diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8eacbf8d..5a2e4f36 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,10 +36,6 @@ set( SFCGAL_VERSION_PATCH 7 )
 
 set( SFCGAL_VERSION "${SFCGAL_VERSION_MAJOR}.${SFCGAL_VERSION_MINOR}.${SFCGAL_VERSION_PATCH}" )
 
-# disabled for 1.0
-#include( PrecompiledHeader )
-#option( Use_precompiled_headers "Use precompiled headers" OFF )
-
 if (CMAKE_CXX_COMPILER MATCHES ".*clang")
     set(CMAKE_COMPILER_IS_CLANGXX 1)
 endif ()
diff --git a/cmake/Modules/PrecompiledHeader.cmake b/cmake/Modules/PrecompiledHeader.cmake
deleted file mode 100644
index cc53571e..00000000
--- a/cmake/Modules/PrecompiledHeader.cmake
+++ /dev/null
@@ -1,125 +0,0 @@
-#
-# Original message : http://www.cmake.org/pipermail/cmake/2006-December/012360.html
-
-# - Try to find precompiled headers support for GCC 3.4 and 4.x
-# Once done this will define:
-#
-# Variable:
-#   PCHSupport_FOUND
-#
-# Macro:
-#   ADD_PRECOMPILED_HEADER
-
-if (CMAKE_CXX_COMPILER MATCHES ".*clang.*")
-    set(CMAKE_COMPILER_IS_CLANGXX TRUE)
-endif ()
-
-IF(CMAKE_COMPILER_IS_GNUCXX)
-  EXEC_PROGRAM(
-    ${CMAKE_CXX_COMPILER} 
-    ARGS 			--version 
-    OUTPUT_VARIABLE _compiler_output)
-  STRING(REGEX REPLACE ".* ([0-9]\\.[0-9]\\.[0-9]) .*" "\\1" 
-    gcc_compiler_version ${_compiler_output})
-  #MESSAGE("GCC Version: ${gcc_compiler_version}")
-  IF(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
-    SET(PCHSupport_FOUND TRUE)
-  ELSE(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
-    IF(gcc_compiler_version MATCHES "3\\.4\\.[0-9]")
-      SET(PCHSupport_FOUND TRUE)
-    ENDIF(gcc_compiler_version MATCHES "3\\.4\\.[0-9]")
-  ENDIF(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
-
-  IF (PCHSupport_FOUND)
-    SET( PCH_Generate_cmd -x c++-header)
-    SET( PCH_Include_cmd "-Winvalid-pch -include" )
-    SET( PCH_Include_file _name )
-  ENDIF(PCHSupport_FOUND)
-ENDIF(CMAKE_COMPILER_IS_GNUCXX)
-
-IF(CMAKE_COMPILER_IS_CLANGXX)
-  set(PCHSupport_FOUND TRUE)
-  SET( PCH_Generate_cmd "")
-  SET( PCH_Include_cmd "-include-pch" )
-  SET( PCH_Include_file _output )
-ENDIF(CMAKE_COMPILER_IS_CLANGXX)
-
-MACRO(ADD_PRECOMPILED_HEADER _targetName _input )
-
-  IF(NOT CMAKE_BUILD_TYPE)
-    MESSAGE(FATAL_ERROR 
-      "This is the ADD_PRECOMPILED_HEADER macro. " 
-      "You must set CMAKE_BUILD_TYPE!"
-      )
-  ENDIF(NOT CMAKE_BUILD_TYPE)
-  
-  GET_FILENAME_COMPONENT(_name ${_input} NAME)
-  GET_FILENAME_COMPONENT(_path ${_input} PATH)
-  SET(_outdir "${CMAKE_CURRENT_BINARY_DIR}/${_name}.gch")
-  SET(_output "${_outdir}/${CMAKE_BUILD_TYPE}.pch")
-  
-  ADD_CUSTOM_COMMAND(
-    OUTPUT ${_outdir}
-    COMMAND mkdir ${_outdir} # TODO: {CMAKE_COMMAND} -E ... 
-    )
-  #MAKE_DIRECTORY(${_outdir})
-  
-  STRING(TOUPPER "CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}" _flags_var_name)
-  SET(_compile_FLAGS ${${_flags_var_name}})
-  
-  GET_DIRECTORY_PROPERTY(_directory_flags INCLUDE_DIRECTORIES)
-  
-  
-  SET(_CMAKE_CURRENT_BINARY_DIR_included_before_path FALSE)
-  FOREACH(item ${_directory_flags})
-    IF(${item}  STREQUAL ${_path} AND NOT _CMAKE_CURRENT_BINARY_DIR_included_before_path )
-      MESSAGE(FATAL_ERROR 
-	"This is the ADD_PRECOMPILED_HEADER macro. "
-	"CMAKE_CURREN_BINARY_DIR has to mentioned at INCLUDE_DIRECTORIES's argument list before ${_path}, where ${_name} is located"
-	)	
-    ENDIF(${item}  STREQUAL ${_path} AND NOT _CMAKE_CURRENT_BINARY_DIR_included_before_path )
-    
-    IF(${item}  STREQUAL ${CMAKE_CURRENT_BINARY_DIR})
-      SET(_CMAKE_CURRENT_BINARY_DIR_included_before_path TRUE)
-    ENDIF(${item}  STREQUAL ${CMAKE_CURRENT_BINARY_DIR})
-    
-    LIST(APPEND _compile_FLAGS "-I${item}")
-  ENDFOREACH(item)
-  
-  GET_DIRECTORY_PROPERTY(_directory_flags DEFINITIONS)
-  LIST(APPEND _compile_FLAGS ${_directory_flags})
-  LIST(APPEND _compile_FLAGS ${CMAKE_CXX_FLAGS} )
-  # get additional flags from the macro
-  LIST(APPEND _compile_FLAGS ${ARGN})
-  
-  SEPARATE_ARGUMENTS(_compile_FLAGS)
-#  MESSAGE("_compiler_FLAGS: ${_compiler_FLAGS}")
-#  message(${_compile_FLAGS} )
-#  message("COMMAND ${CMAKE_CXX_COMPILER}	${_compile_FLAGS} -x c++-header -o ${_output} ${_input}")
-  
-  ADD_CUSTOM_COMMAND(
-    OUTPUT	${CMAKE_CURRENT_BINARY_DIR}/${_name} 
-    COMMAND ${CMAKE_COMMAND} -E copy  ${_input} ${CMAKE_CURRENT_BINARY_DIR}/${_name} # ensure same directory! Required by gcc
-    )
-  
-  ADD_CUSTOM_COMMAND(
-    OUTPUT ${_output} 	
-    COMMAND ${CMAKE_CXX_COMPILER}
-    ${_compile_FLAGS}
-    ${PCH_Generate_cmd}
-    -o ${_output} 
-    ${_input}
-    DEPENDS ${_input} ${_outdir} ${CMAKE_CURRENT_BINARY_DIR}/${_name}	
-    )
-  ADD_CUSTOM_TARGET(${_targetName}_gch 
-    DEPENDS	${_output} 	
-    )
-  ADD_DEPENDENCIES(${_targetName} ${_targetName}_gch )
-  SET_TARGET_PROPERTIES(${_targetName} 
-    PROPERTIES	
-#    COMPILE_FLAGS "${PCH_Include_cmd} ${_name}"
-#    COMPILE_FLAGS "${PCH_Include_cmd} ${_output}"
-    COMPILE_FLAGS "${PCH_Include_cmd} ${${PCH_Include_file}}"
-    )
-  
-ENDMACRO(ADD_PRECOMPILED_HEADER)
\ No newline at end of file
diff --git a/test/unit/CMakeLists.txt b/test/unit/CMakeLists.txt
index 867c0cbd..60aa0373 100644
--- a/test/unit/CMakeLists.txt
+++ b/test/unit/CMakeLists.txt
@@ -11,14 +11,6 @@ add_executable( unit-test-SFCGAL ${SFCGAL_UNIT_TEST_SOURCES} )
 target_link_libraries( unit-test-SFCGAL SFCGAL)
 target_link_libraries(unit-test-SFCGAL ${CGAL_3RD_PARTY_LIBRARIES} ${Boost_LIBRARIES})
 
-#include( PrecompiledHeader )
-#if(PCHSupport_FOUND)
-#  add_precompiled_header(unit-test-SFCGAL
-#    ${CMAKE_CURRENT_SOURCE_DIR}/../../include/all.h
-##    "-fPIC"
-#    )
-#endif()
-
 set_target_properties( unit-test-SFCGAL PROPERTIES DEBUG_POSTFIX "d" )
 install( TARGETS unit-test-SFCGAL DESTINATION bin )