Small Libraries

[porfirio]

Hi! I want to use Qt for make a small application.

But Qt runtime is huge!
I need QtCore4.dll and QtGui4.dll, but together they are 13,3MB!
So my application wont be nomore a small application

Is there a way to compile this dll's removing support for some stuff and make them smaller?

What about Static Linking, will it make it smaller?
The advantage would be that we could UPX it, i think...
kdewin-installer-gui-latest.exe from kdewin is 2,23MB and it uses Qt

If anyone faced the same problem, could you post your configuration for configure.exe?

Either for reducing dll's size or for make minimal static libraries.

Thank's in advance.

[franz]

Using the dll you will always be stuck with this, unless you disable stuff. Smart static linking might indeed reduce the total size. Note that to do that you have to either release your code under GPL or have a commercial license.

[porfirio]

Using the dll you will always be stuck with this, unless you disable stuff. Smart static linking might indeed reduce the total size. Note that to do that you have to either release your code under GPL or have a commercial license.

I release my code under GPL

Removing suport for databases, image formats, sql drivers, webkit, etc will decrease the library size or just the make the plug-ins not being build?

My application is quit simple and small, dont need many stuff.

[franz]

Removing suport for databases, image formats, sql drivers, webkit, etc will decrease the library size or just the make the plug-ins not being build?

None of those are in the QtCore or QtGui modules. You really need to cut on core and gui stuff if you wish to reduce size.

[porfirio]

None of those are in the QtCore or QtGui modules. You really need to cut on core and gui stuff if you wish to reduce size.

Yes, that is what i was thinking...

Any hints on what i can do to reduce its size?

[rexi]

Well, if you release your project under GPL anyway the easiest solution would be to build a static version of Qt and link the binary release of your application against that static Qt.

If you do that, only the parts of Qt that you are using are included in your binary, and you do not need to ship any Qt libraries for it to work.

[porfirio]

Well, if you release your project under GPL anyway the easiest solution would be to build a static version of Qt and link the binary release of your application against that static Qt.

If you do that, only the parts of Qt that you are using are included in your binary, and you do not need to ship any Qt libraries for it to work.

Yes, so i should copy the Qt folder and run configure and make

configure.exe
-release
-static
-opensource
-no-exceptions
-no-qt3support
-no-opengl
-no-qmake

Is there anything more i can remove for make it even smaller?

[axeljaeger]

Yes.

First call strip -s on the executable
then use upx to compress the executable