Difference between revisions of "How to prevent Qt from compiling code examples"

From Qt Wiki
Jump to: navigation, search
(Cleanup)
 
(One intermediate revision by one other user not shown)
Line 1: Line 1:
'''English''' [[How_to_prevent_Qt_from_compiling_code_examples_Bulgarian|Български]]
+
{{LangSwitch}}
 
 
 
[[Category:HowTo]]
 
[[Category:HowTo]]
  
 
'''NOTE:''' This guide is for Qt 4. See [[Building_Qt_5_from_Git]] for instructions for Qt 5.
 
'''NOTE:''' This guide is for Qt 4. See [[Building_Qt_5_from_Git]] for instructions for Qt 5.
  
= Compile Qt Faster by Skipping Examples =
+
Compiling Qt is fairly straight-forward, but quite a lengthy process. To make it much quicker, an easy way is to prevent examples from being compiled.
 
 
Compiling Qt is fairly straight-forward, but quite a lengthy process.
 
 
 
To make it much quicker, an easy way is to prevent examples from being compiled.
 
  
 
One way of doing it is:
 
One way of doing it is:

Latest revision as of 19:12, 28 June 2015

En Ar Bg De El Es Fa Fi Fr Hi Hu It Ja Kn Ko Ms Nl Pl Pt Ru Sq Th Tr Uk Zh

NOTE: This guide is for Qt 4. See Building_Qt_5_from_Git for instructions for Qt 5.

Compiling Qt is fairly straight-forward, but quite a lengthy process. To make it much quicker, an easy way is to prevent examples from being compiled.

One way of doing it is:

  • extract source sdk (or git clone it)
  • start configure with option "dont-process" (works only on windows, doesn't seem to exist on Linux configure)

configure -openssl -qt-libjpeg -qt-gif -qt-zlib -webkit -phonon -no-plugin-manifests -plugin-sql-sqlite -opensource -debug-and-release -confirm-license -dont-process

  • then launch explicitely newly created qmake to build only libs and tools

QTDIR%/qmake/qmake -r QT_BUILD_PARTS="libs tools"

  • Compile generated makefile

nmake

Compilation time is improved by around 80 (approximately 100 minutes instead of 8 hours) and you end up with a perfectly usable Qt, in debug and release.

On Linux configure and build can be accelerated by using all available cores. export MAKEFLAGS=-j4 configure -AllTheOptionsYouNeed make -j4

Note that compilation place is hardcoded inside qmake and used to find QMAKESPECs. You can however change it later using qmake -query lists all available variable (mostly paths) qmake -set overrides previously hardcoded value