Qt embedded 環境建立

若使用 x86_64 核心套件，要加裝 glibc.i686 套件。
```
[root@dyH ~]# yum install glibc.i686
```
要先安裝 qt 套件。
```
[root@dyH ~]# yum install qt
```
qt source 下載目錄

[root@dyH ~]# cd /usr/src
[root@dyH src]# wget http://ftp.heanet.ie/mirrors/trolltech/pub/qt/source/qt-embedded-linux-opensource-src-4.5.3.tar.gz

解壓縮打包 qt-embedded-linux-opensource-src

[root@dyH ~]# cd src
[dywang@dyH src]$ tar zxvf qt-embedded-linux-opensource-src-4.5.3.tar.gz
[root@dyH src]# cd qt-embedded-linux-opensource-src-4.5.3
[root@dyH qt-embedded-linux-opensource-src-4.5.3]# ls
bin            demos     include             LICENSE.GPL3  qmake   translations
changes-4.5.3  doc       INSTALL             LICENSE.LGPL  README
config.tests   examples  LGPL_EXCEPTION.txt  mkspecs       src
configure      FAQ.txt   lib                 projects.pro  tools

查看 qmake 設定檔 mkspecs/qws/linux-arm-g++/qmake.conf 是否需要修改。

[root@dyH qt-embedded-linux-opensource-src-4.5.3]# cat mkspecs/qws/linux-arm-g++/qmake.conf
#
# qmake configuration for building with arm-linux-g++
#

include(../../common/g++.conf)
include(../../common/linux.conf)
include(../../common/qws.conf)

# modifications to g++.conf
QMAKE_CC                = arm-linux-gcc
QMAKE_CXX               = arm-linux-g++
QMAKE_LINK              = arm-linux-g++
QMAKE_LINK_SHLIB        = arm-linux-g++

# modifications to linux.conf
QMAKE_AR                = arm-linux-ar cqs
QMAKE_OBJCOPY           = arm-linux-objcopy
QMAKE_STRIP             = arm-linux-strip

load(qt_config)

產生 Makefile

[root@dyH qt-embedded-linux-opensource-src-4.5.3]# ll Makefile
ls: cannot access Makefile: No such file or directory
[root@dyH qt-embedded-linux-opensource-src-4.5.3]# ./configure -embedded arm \
-qt-zlib -qt-libpng -qt-gif -qt-libtiff -qt-libmng -qt-libjpeg -qt-freetype -no-openssl

Which edition of Qt do you want to use ?

Type 'c' if you want to use the Commercial Edition.
Type 'o' if you want to use the Open Source Edition.

o  %* c 為商用版，o 為 Open Source 版*)


This is the Qt for Embedded Linux Open Source Edition.

You are licensed to use this software under the terms of
the Lesser GNU General Public License (LGPL) versions 2.1.
You are also licensed to use this software under the terms of
the GNU General Public License (GPL) versions 3.

Type '3' to view the GNU General Public License version 3.
Type 'L' to view the Lesser GNU General Public License version 2.1.
Type 'yes' to accept this license offer.
Type 'no' to decline this license offer.

Do you accept the terms of either license? yes %*回答 yes 接受版權宣告*)

Creating qmake. Please wait...
gmake: Nothing to be done for `first'.
......
......

Qt is now configured for building. Just run 'gmake'.
Once everything is built, you must run 'gmake install'.
Qt will be installed into /usr/local/Trolltech/QtEmbedded-4.5.3-arm

To reconfigure, run 'gmake confclean' and 'configure'.

Makefile 成功產生後，最後幾行已明確的說明，只要執行 qmake，即可進行編譯，執行 gmake install 進行安裝，安裝目錄在 /usr/local/Trolltech/QtEmbedded-4.5.3-arm。

[root@dyH qt-embedded-linux-opensource-src-4.5.3]# ll Makefile 
-rw-r--r--. 1 root root 117564 Sep  8 08:13 Makefile
[root@dyH qt-embedded-linux-opensource-src-4.5.3]# gmake  %*要花點時間*) 
[root@dyH qt-embedded-linux-opensource-src-4.5.3]# gmake  install

查看 QtEmbedded 安裝目錄

[root@dyH qt-embedded-linux-opensource-src-4.5.3]# ll /usr/local/Trolltech/QtEmbedded-4.5.3-arm
total 28
drwxr-xr-x.  2 root root 4096 Sep  7 22:37 bin
drwxr-xr-x. 18 root root 4096 Sep  7 22:37 demos
drwxr-xr-x. 25 root root 4096 Sep  7 22:37 examples
drwxr-xr-x. 14 root root 4096 Sep  7 22:36 include
drwxr-xr-x.  4 root root 4096 Sep  7 22:36 lib
drwxr-xr-x. 88 root root 4096 Sep  7 22:37 mkspecs
drwxr-xr-x.  6 root root 4096 Sep  7 22:36 plugins