diff --git a/chapter05/gcc-exp.xml b/chapter05/gcc-exp.xml
index 65c610adc..37a3bea4d 100644
--- a/chapter05/gcc-exp.xml
+++ b/chapter05/gcc-exp.xml
@@ -2,9 +2,9 @@
 <title>Command explanations</title>
 
 <para><userinput>patch -Np1 -i ../gcc-&gcc-version;.patch:</userinput>
-This patch fixes a bug in gcc's linker concerning non-exported (weak) 
-symbols, which was brought to the surface by the new glibc and also one
-or two other problems which can arise.</para>
+This new patch deals with incorrect handling of weak symbols, the 
+over-optimization of calls to those weak symbols, an atexit issue and
+the  __dso_handle symbol required for atexit's proper function.</para>
 
 <para><userinput>--prefix=/usr:</userinput> This is NOT a typo.  GCC hard
 codes some paths while compiling and so we need to pass /usr as the
diff --git a/chapter06/gcc-exp.xml b/chapter06/gcc-exp.xml
index 1eba1c32d..15a399d9d 100644
--- a/chapter06/gcc-exp.xml
+++ b/chapter06/gcc-exp.xml
@@ -2,9 +2,9 @@
 <title>Command explanations</title>
 
 <para><userinput>patch -Np1 -i ../gcc-&gcc-version;.patch:</userinput>
-This patch fixes a bug in gcc's linker concerning non-exported (weak) 
-symbols, which was brought to the surface by the new glibc and also one
-or two other problems which can arise.</para>
+This new patch deals with incorrect handling of weak symbols, the
+over-optimization of calls to those weak symbols, an atexit issue and
+the  __dso_handle symbol required for atexit's proper function.</para>
 
 <para><userinput>--enable-languages=c,c++:</userinput> This only builds the C
 and C++ compilers and not the other available compilers as they are, on