1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
diff -ru gcc-4.4.6/gcc/doc/invoke.texi gcc-4.4.6.orig/gcc/doc/invoke.texi
--- gcc-4.4.6/gcc/doc/invoke.texi	2011-12-13 09:14:57.000000000 +0000
+++ gcc-4.4.6.orig/gcc/doc/invoke.texi	2011-03-23 22:02:12.000000000 +0000
@@ -5424,11 +5424,6 @@
 Please note the warning under @option{-fgcse} about
 invoking @option{-O2} on programs that use computed gotos.
 
-NOTE: In Gentoo, @option{-D_FORTIFY_SOURCE=2} is set by default, and is
-activated when @option{-O} is set to 2 or higher.  This enables additional
-compile-time and run-time checks for several libc functions.  To disable,
-specify either @option{-U_FORTIFY_SOURCE} or @option{-D_FORTIFY_SOURCE=0}.
-
 @item -O3
 @opindex O3
 Optimize yet more.  @option{-O3} turns on all optimizations specified
Nur in gcc-4.4.6/gcc/doc: invoke.texi.orig.
diff -ru gcc-4.4.6/gcc/gcc.c gcc-4.4.6.orig/gcc/gcc.c
--- gcc-4.4.6/gcc/gcc.c	2011-12-13 09:14:57.000000000 +0000
+++ gcc-4.4.6.orig/gcc/gcc.c	2010-01-09 00:05:06.000000000 +0000
@@ -807,7 +807,6 @@
  %{H} %C %{D*&U*&A*} %{i*} %Z %i\
  %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
  %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
- %{!D_FORTIFY_SOURCE:%{!D_FORTIFY_SOURCE=*:%{!U_FORTIFY_SOURCE:-D_FORTIFY_SOURCE=2}}}\
  %{E|M|MM:%W{o*}}";
 
 /* This contains cpp options which are common with cc1_options and are passed