--- cmake-2.8.12.2/bootstrap~	2014-01-16 17:15:09.000000000 +0000
+++ cmake-2.8.12.2/bootstrap	2014-04-07 18:02:10.466010164 +0100
@@ -350,6 +350,7 @@ Configuration:
   --qt-gui                build the Qt-based GUI (requires Qt >= 4.2)
   --no-qt-gui             do not build the Qt-based GUI (default)
   --qt-qmake=<qmake>      use <qmake> as the qmake executable to find Qt
+  --extra=<options>       pass extra options to final cmake build
 
 Directory and file names:
   --prefix=PREFIX         install files in tree rooted at PREFIX
@@ -562,6 +562,7 @@ cmake_verbose=
 cmake_parallel_make=
 cmake_ccache_enabled=
 cmake_prefix_dir="${cmake_default_prefix}"
+cmake_extra_options=
 while test $# != 0; do
   case "$1" in
   --prefix=*) dir=`cmake_arg "$1"`
@@ -579,6 +580,7 @@ while test $# != 0; do
   --no-system-bzip2|--no-system-curl|--no-system-expat|--no-system-libarchive|--no-system-zlib)
     lib=`cmake_arg "$1" "--no-system-"`
     cmake_bootstrap_system_libs="${cmake_bootstrap_system_libs} -DCMAKE_USE_SYSTEM_LIBRARY_`cmake_toupper $lib`=0" ;;
+  --extra=*)  cmake_extra_options="${cmake_extra_options} `cmake_arg "$1"`" ;;
   --qt-gui) cmake_bootstrap_qt_gui="1" ;;
   --no-qt-gui) cmake_bootstrap_qt_gui="0" ;;
   --qt-qmake=*) cmake_bootstrap_qt_qmake=`cmake_arg "$1"` ;;
@@ -1577,7 +1579,7 @@ export CXX
 export MAKE
 
 # Run bootstrap CMake to configure real CMake
-cmake_options="-DCMAKE_BOOTSTRAP=1"
+cmake_options="-DCMAKE_BOOTSTRAP=1 ${cmake_extra_options}"
 if [ -n "${cmake_verbose}" ]; then
   cmake_options="${cmake_options} -DCMAKE_VERBOSE_MAKEFILE=1"
 fi