0.以下在系统CentOS 6.3 x86_64上操作
1.试图运行程序，提示"libc.so.6: version `GLIBC_2.14' not found",原因是系统的glibc版本太低，软件编译时使用了较高版本的glibc引起的：
- [ghui@StuOS bin]$ pwd
- /var/VMdisks/cross/mingw32/bin
- [ghui@StuOS bin]$ ls
- lrelease QtCore4.dll QtNetwork4.dll QtSql4.dll QtXml4.dll
- moc QtDeclarative4.dll QtOpenGL4.dll QtSvg4.dll rcc
- phonon4.dll QtGui4.dll QtScript4.dll QtTest4.dll uic
- qmake QtMultimedia4.dll QtScriptTools4.dll QtWebKit4.dll
- [ghui@StuOS bin]$ ./qmake
- ./qmake: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by ./qmake)
[ghui@StuOS bin]$ pwd
/var/VMdisks/cross/mingw32/bin
[ghui@StuOS bin]$ ls
lrelease QtCore4.dll QtNetwork4.dll QtSql4.dll QtXml4.dll
moc QtDeclarative4.dll QtOpenGL4.dll QtSvg4.dll rcc
phonon4.dll QtGui4.dll QtScript4.dll QtTest4.dll uic
qmake QtMultimedia4.dll QtScriptTools4.dll QtWebKit4.dll
[ghui@StuOS bin]$ ./qmake
./qmake: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by ./qmake)
2.查看系统glibc支持的版本：
[ghui@StuOS bin]$ strings /lib64/libc.so.6 |grep GLIBC_
GLIBC_2.2.5
GLIBC_2.2.6
GLIBC_2.3
GLIBC_2.3.2
GLIBC_2.3.3
GLIBC_2.3.4
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
GLIBC_2.7
GLIBC_2.8
GLIBC_2.9
GLIBC_2.10
GLIBC_2.11
GLIBC_2.12
GLIBC_PRIVATE[ghui@StuOS bin]$ rpm -qa |grep glibc
glibc-static-2.12-1.80.el6_3.6.x86_64
glibc-headers-2.12-1.80.el6_3.6.x86_64
glibc-common-2.12-1.80.el6_3.6.x86_64
glibc-devel-2.12-1.80.el6_3.6.x86_64
glibc-static-2.12-1.80.el6_3.6.i686
glibc-devel-2.12-1.80.el6_3.6.i686
glibc-2.12-1.80.el6_3.6.i686
glibc-2.12-1.80.el6_3.6.x86_643.可以看到最高只支持2.12版本，所以考虑编译解决这个问题：
a. 到http://www.gnu.org/software/libc/下载最新版本，我这里下载了glibc-2.14.tar.xz 这个版本，解压到任意目录准备编译
b.这里解压到/var/VMdisks/glibc-2.14/
[ghui@StuOS bin]$ cd /var/VMdisks/glibc-2.14/
[ghui@StuOS glibc-2.14]$ pwd
/var/VMdisks/glibc-2.14
[ghui@StuOS glibc-2.14]$ ls
abilist config.h.in intl README.libm
abi-tags config.log io resolv
aclocal.m4 config.make.in libc-abis resource
aout configure libidn rt
argp configure.in libio Rules
assert conform LICENSES scripts
autom4te.cache CONFORMANCE locale setjmp
bits COPYING localedata shadow
BUGS COPYING.LIB login shlib-versions
build cppflags-iterator.mk mach signal
CANCEL-FCT-WAIVE crypt Makeconfig socket
CANCEL-FILE-WAIVE csu Makefile soft-fp
catgets ctype Makefile.in stdio-common
ChangeLog debug Makerules stdlib
ChangeLog.1 dirent malloc streams
ChangeLog.10 dlfcn manual string
ChangeLog.11 elf math sunrpc
ChangeLog.12 extra-lib.mk misc sysdeps
ChangeLog.13 extra-modules.mk NAMESPACE sysvipc
ChangeLog.14 FAQ NEWS termios
ChangeLog.15 FAQ.in nis test-skeleton.c
ChangeLog.16 gmon NOTES time
ChangeLog.17 gnulib nptl timezone
ChangeLog.2 grp nptl_db tls.make.c
ChangeLog.3 gshadow nscd version.h
ChangeLog.4 hesiod nss Versions.def
ChangeLog.5 hurd o-iterator.mk wcsmbs
ChangeLog.6 iconv po wctype
ChangeLog.7 iconvdata posix WUR-REPORT
ChangeLog.8 include PROJECTS
ChangeLog.9 inet pwd
conf INSTALL README c.在glibc源码目录建立构建目录，并cd进入构建目录
[ghui@StuOS glibc-2.14]$ mkdir build[ghui@StuOS glibc-2.14]$ cd build d.运行configure配置，make && sudo make install
[ghui@StuOS build]$ ../configure --prefix=/opt/glibc-2.14
[ghui@StuOS build]$ make -j4
[ghui@StuOS build]$ sudo make install
[sudo] password for ghui: 4.临时修改环境变量
[ghui@StuOS bin]$ export LD_LIBRARY_PATH=/opt/glibc-2.14/lib:$LD_LIBRARY_PATH
[ghui@StuOS glibc-2.14]$ cd /var/VMdisks/cross/mingw32/bin/1. [ghui@StuOS bin]$ ./qmake
2. Usage: ./qmake [mode] [options] [files]
3.
4. QMake has two modes, one mode for generating project files based on
5. some heuristics, and the other for generating makefiles. Normally you
6. shouldn't need to specify a mode, as makefile generation is the default
7. mode for qmake, but you may use this to test qmake on an existing project
