Qt使用笔记（2）－－Qmake的使用
阅读书：C++ GUI Programming with Qt 4, Second Edition，按照其指示，做了第一个例子，并按其说明使用如下批处理，进行了编译：
rem 设置vs的环境变量
set oldpath=%path%
set path="C:\Program Files\Microsoft Visual Studio 9.0\Common7\Tools";"D:\Qt\lib4.4.3\bin";%path%
call vsvars32.bat
qmake -project
qmake hello.pro
nmake
set path=%oldpath%
过程成功。窃喜了一下，但随之问题来啦。这个批处理不具有一般性，对于不同的例子都得修改相应的工程名字（这里是hello.pro).
带着这个问题对qmake一阵狂搜，得出了一个有启发的方案，将批处理修改如下：
rem 设置vs的环境变量
set oldpath=%path%
set path="C:\Program Files\Microsoft Visual Studio 9.0\Common7\Tools";"D:\Qt\lib4.4.3\bin";%path%
call vsvars32.bat
qmake -project
qmake
nmake
set path=%oldpath%
效果还不错，可以在不同的例子中使用，不须要修改啦。但还是有点不足，须要对一个工程进行调试怎么办？研究qmake manual 半天找出了如下方案，再次修改批处理如下：
rem 设置vs的环境变量
set oldpath=%path%
set path="C:\Program Files\Microsoft Visual Studio 9.0\Common7\Tools";"D:\Qt\lib4.4.3\bin";%path%
call vsvars32.bat
qmake -project
qmake
qmake -tp vc
nmake
set path=%oldpath%
使用以上批处理，除了可对工程进行相应的编译生成以外，还可以生成一个。vcproj 文件，可以使用你的VS打开，可以进行相应的编译调试工作啦。
但上面的命令只是知其然而不知其所以然，将qmake －h运行一下，终天有点明白啦。
Usage: qmake [mode] [options] [files]
QMake has two modes, one mode for generating project files based on
some heuristics, and the other for generating makefiles. Normally you
shouldn't need to specify a mode, as makefile generation is the default
mode for qmake, but you may use this to test qmake on an existing project
Mode:
-project Put qmake into project file generation mode
In this mode qmake interprets files as files to
be built,
defaults to *.c; *.ui; *.y; *.l; *.ts; *.xlf; *.qrc; *.h; *.hpp; *.hh; *.hxx; *.cpp; *.cc; *.cxx
-makefile Put qmake into makefile generation mode (default)
In this mode qmake interprets files as project files to
be processed, if skipped qmake will try to find a project
file in your current working directory
Warnings Options:
-Wnone Turn off all warnings
-Wall Turn on all warnings
-Wparser Turn on parser warnings
-Wlogic Turn on logic warnings
Options:
* You can place any variable assignment in options and it will be *
* processed as if it was in [files]. These assignments will be parsed *
* before [files]. *
-o file Write output to file
-unix Run in unix mode
-win32 Run in win32 mode
-macx Run in Mac OS X mode
-d Increase debug level
-t templ Overrides TEMPLATE as templ
-tp prefix Overrides TEMPLATE so that prefix is prefixed into the value
-help This help
-v Version information
-after All variable assignments after this will be
parsed after [files]
-norecursive Don't do a recursive search
-recursive Do a recursive search
-cache file Use file as cache [makefile mode only]
-spec spec Use spec as QMAKESPEC [makefile mode only]
-nocache Don't use a cache file [makefile mode only]
-nodepend Don't generate dependencies [makefile mode only]
-nomoc Don't generate moc targets [makefile mode only]
-nopwd Don't look for files in pwd [project mode only]
1.qmake -project
此命令使用 -project 模式，当不输入文件时，其以如下文件为输入。：defaults to *.c; *.ui; *.y; *.l; *.ts; *.xlf; *.qrc; *.h; *.hpp; *.hh; *.hxx; *.cpp; *.cc; *.cxx，并生成相应的pro文件。我这里是test001.pro。
2.qmake
此命令使用默认模式 -makefile,当不输入文件时，以当前目录下的工程文件作为输入（qmake will try to find a project
file in your current working directory），我这里是test001.pro。
3.qmake -tp vc
这个用来生成文件：test001.vcproj
4.nmake
以当前的makefile作为输入。对于这个makefile的内容，我暂时还没有读懂，明白了再与各位分亨。
初试qmake感到还是很强大，但也很易用的，比bakefile要易入门些。
2009.08.06
最近使用qmake 又有了一些认识.以上是用在生成一个GUI的程序,若是要生成一个CONSOLE程序,则应该使用如下批处理.
rem 设置vs的环境变量
set oldpath=%path%
set path="C:\Program Files\Microsoft Visual Studio 9.0\Common7\Tools";"D:\Qt\4.5.2\bin";%path%
call vsvars32.bat
nmake distclean
REM ~ qmake -help
qmake -project CONFIG+=console
qmake
qmake -tp vc
nmake
set path=%oldpath%
pause
总结:
对于QMAKE我们可以使用一个赋值对作参考.(You may also pass assignments on the command line in this mode.)
