--- a/gcc/doc/install.texi	2013-10-01 19:29:40.000000000 +0200
+++ b/gcc/doc/install.texi	2013-11-17 16:13:20.474144921 +0100
@@ -1455,6 +1455,10 @@ do a @samp{make -C gcc gnatlib_and_tools
 Specify that the run-time libraries for stack smashing protection
 should not be built.
 
+@item --enable-default-pie
+Turn on @option{-fPIE} and @option{-pie} by default if supported.
+Currently supported targets are i?86-*-linux* and x86-64-*-linux*.
+
 @item --disable-libquadmath
 Specify that the GCC quad-precision math library should not be built.
 On some systems, the library is required to be linkable when building
--- a/gcc/doc/invoke.texi	2013-10-03 19:13:50.000000000 +0200
+++ b/gcc/doc/invoke.texi	2013-11-17 21:30:02.784220111 +0100
@@ -10535,6 +10535,12 @@ For predictable results, you must also s
 used for compilation (@option{-fpie}, @option{-fPIE},
 or model suboptions) when you specify this linker option.
 
+NOTE: With configure --enable-default-pie this option is enabled by default
+for C, C++, ObjC, ObjC++, if none of @option{-fno-PIE}, @option{-fno-pie},
+@option{-fPIC}, @option{-fpic}, @option{-fno-PIC}, @option{-fno-pic},
+@option{-nostdlib}, @option{-nostartfiles}, @option{-shared},
+@option{-nodefaultlibs}, nor @option{static} are found.
+
 @item -rdynamic
 @opindex rdynamic
 Pass the flag @option{-export-dynamic} to the ELF linker, on targets
@@ -22476,6 +22476,12 @@ used during linking.
 @code{__pie__} and @code{__PIE__}.  The macros have the value 1
 for @option{-fpie} and 2 for @option{-fPIE}.
 
+NOTE: With configure --enable-default-pie this option is enabled by default
+for C, C++, ObjC, ObjC++, if none of @option{-fno-PIE}, @option{-fno-pie},
+@option{-fPIC}, @option{-fpic}, @option{-fno-PIC}, @option{-fno-pic},
+@option{-nostdlib}, @option{-nostartfiles}, @option{-shared},
+@option{-nodefaultlibs}, nor @option{static} are found.
+
 @item -fno-jump-tables
 @opindex fno-jump-tables
 Do not use jump tables for switch statements even where it would be