Index: BOOK/cross-tools/arm/gcc-final.xml
===================================================================
--- BOOK/cross-tools/arm/gcc-final.xml	(revision 8a77fbdcab190952af95194ada9f3fe23aa933a7)
+++ BOOK/cross-tools/arm/gcc-final.xml	(revision 2b9574bfdb3c1490c9f5f8313b8bf3c1e9c3316d)
@@ -27,4 +27,12 @@
     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
     href="../common/gcc-final.xml"
+    xpointer="xpointer(//*[@os='b'])"/>
+
+    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
+    href="../common/gcc-final.xml"
+    xpointer="xpointer(//*[@os='ba'])"/>
+
+    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
+    href="../common/gcc-final.xml"
     xpointer="xpointer(//*[@os='c'])"/>
 
@@ -46,6 +54,5 @@
   --with-sysroot=${CLFS} --disable-nls --enable-shared \
   --enable-languages=c --enable-c99 --enable-long-long \
-  --with-mpfr=${CLFS}/cross-tools --with-gmp=${CLFS}/cross-tools \
-  --with-mpc=${CLFS}/cross-tools --disable-multilib \
+  --disable-multilib \
   --with-abi=${CLFS_ABI} --with-arch=${CLFS_ARM_ARCH} \
   --with-mode=${CLFS_ARM_MODE} --with-float=${CLFS_FLOAT} \
Index: BOOK/cross-tools/common/gcc-final.xml
===================================================================
--- BOOK/cross-tools/common/gcc-final.xml	(revision 8a77fbdcab190952af95194ada9f3fe23aa933a7)
+++ BOOK/cross-tools/common/gcc-final.xml	(revision 2b9574bfdb3c1490c9f5f8313b8bf3c1e9c3316d)
@@ -24,4 +24,15 @@
   <sect2 role="installation">
     <title>Installation of GCC Cross Compiler</title>
+
+    <para os="b">GCC requires the GMP, MPFR, and MPC packages to either be
+    present on the host or to be present in source form within the gcc source
+    tree.  Unpack these into the GCC directory after unpacking GCC:</para>
+
+<screen os="ba"><userinput>tar xf ../mpfr-&mpfr-version;.tar.bz2
+mv -v mpfr-&mpfr-version; mpfr
+tar xf ../gmp-&gmp-version;.tar.bz2
+mv -v gmp-&gmp-version; gmp
+tar xf ../mpc-&mpc-version;.tar.gz
+mv -v mpc-&mpc-version; mpc</userinput></screen>
 
     <xi:include os="c" xmlns:xi="http://www.w3.org/2003/XInclude"
Index: BOOK/cross-tools/mips/gcc-final.xml
===================================================================
--- BOOK/cross-tools/mips/gcc-final.xml	(revision 8a77fbdcab190952af95194ada9f3fe23aa933a7)
+++ BOOK/cross-tools/mips/gcc-final.xml	(revision 2b9574bfdb3c1490c9f5f8313b8bf3c1e9c3316d)
@@ -27,4 +27,12 @@
     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
     href="../common/gcc-final.xml"
+    xpointer="xpointer(//*[@os='b'])"/>
+
+    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
+    href="../common/gcc-final.xml"
+    xpointer="xpointer(//*[@os='ba'])"/>
+
+    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
+    href="../common/gcc-final.xml"
     xpointer="xpointer(//*[@os='c'])"/>
 
@@ -46,6 +54,5 @@
   --with-sysroot=${CLFS} --disable-nls --enable-shared \
   --enable-languages=c --enable-c99 --enable-long-long \
-  --with-mpfr=${CLFS}/cross-tools --with-gmp=${CLFS}/cross-tools \
-  --with-mpc=${CLFS}/cross-tools --disable-multilib \
+  --disable-multilib \
   --with-abi=${CLFS_ABI} --with-arch=mips${CLFS_MIPS_LEVEL} \
   --with-float=${CLFS_FLOAT} --with-endian=${CLFS_ENDIAN}</userinput></screen>
Index: BOOK/cross-tools/x86/gcc-final.xml
===================================================================
--- BOOK/cross-tools/x86/gcc-final.xml	(revision 8a77fbdcab190952af95194ada9f3fe23aa933a7)
+++ BOOK/cross-tools/x86/gcc-final.xml	(revision 2b9574bfdb3c1490c9f5f8313b8bf3c1e9c3316d)
@@ -27,4 +27,12 @@
     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
     href="../common/gcc-final.xml"
+    xpointer="xpointer(//*[@os='b'])"/>
+
+    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
+    href="../common/gcc-final.xml"
+    xpointer="xpointer(//*[@os='ba'])"/>
+
+    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
+    href="../common/gcc-final.xml"
     xpointer="xpointer(//*[@os='c'])"/>
 
@@ -46,6 +54,5 @@
   --with-sysroot=${CLFS} --disable-nls --enable-shared \
   --enable-languages=c --enable-c99 --enable-long-long \
-  --with-mpfr=${CLFS}/cross-tools --with-gmp=${CLFS}/cross-tools \
-  --with-mpc=${CLFS}/cross-tools --disable-multilib \
+  --disable-multilib \
   --with-arch=${CLFS_CPU}</userinput></screen>
 
