gcc 4.4.6 源码

gcc 4.4.6 源代码，加入了自己的注释，自己看了一遍，在自己理解的基础上加入了英文注释，看源代码的码农们可以下下来看看一块交流下哈

gcc-4.4.6
ylwrap
COPYING.LIB
ltgcc.m4
libssp
libffi
libgcc
COPYING3
mkinstalldirs
fixincludes
symlink-tree
MD5SUMS
include
libgomp
boehm-gc
gcc
Makefile.in
ltversion.m4
README
COPYING
libmudflap
config
move-if-change
MAINTAINERS
compile
libobjc
gnattools
config-ml.in
mkdep
configure
ChangeLog
NEWS
LAST_UPDATED
libada
install-sh
configure.ac
ltsugar.m4
libtool-ldflags
config.rpath
ltoptions.m4
config.sub
intl
ltmain.sh
libstdc++-v3
Makefile.tpl
config.guess
lt~obsolete.m4
maintainer-scripts
libdecnumber
COPYING3.LIB
depcomp
ChangeLog.tree-ssa
libgfortran
libiberty
libcpp
INSTALL
missing
contrib
libtool.m4
Makefile.def
zlib
libjava
COPYING.RUNTIME
ABOUT-NLS