[GCC] Install gcc 4.4.4 on FC20

Q:
../../gcc/doc/cppopts.texi:761: @itemx must follow @item

A:
vim ./gcc/doc/cppopts.texi +761
change itemx  --> item

Q:
../../gcc/doc/invoke.texi:4648: @itemx must follow @item
../../gcc/doc/invoke.texi:4652: @itemx must follow @item
../../gcc/doc/invoke.texi:4663: @itemx must follow @item
../../gcc/doc/invoke.texi:4667: @itemx must follow @item
../../gcc/doc/invoke.texi:4712: @itemx must follow @item
../../gcc/doc/invoke.texi:4742: @itemx must follow @item
../../gcc/doc/invoke.texi:4754: @itemx must follow @item

A:
vim ./gcc/doc/invoke.texi +4648

Q:
../../gcc/doc/c-tree.texi:2341: @itemx must follow @item
../../gcc/doc/c-tree.texi:2347: @itemx must follow @item

A:
vim ./gcc/doc/c-tree.texi

Q:
../.././libgcc/../gcc/config/i386/linux-unwind.h:138: error: field ‘info’ has incomplete type

A:
From struct siginfo info;  -->  siginfo_t info;

Q:
./.libs/libgcj.so: undefined reference to `__cxa_call_unexpected'

A:
http://gcc.gnu.org/viewcvs/gcc/branches/ARM/embedded-4_6-branch/libjava/prims.cc?revision=189421&view=co&pathrev=189421

Replace prims.c

Reference:

• LFS6.6中make gcc问题
• 交叉编译链、qt 、qt embedded的安装
• Contents of /branches/ARM/embedded-4_6-branch/libjava/prims.cc