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ax_have_qt

Synopsis

AX_HAVE_QT

Description

Searches $PATH and queries qmake for Qt include files, libraries and Qt binary utilities. The macro only supports Qt5 or later.

The following shell variable is set to either "yes" or "no":

  have_qt

Additionally, the following variables are exported:

  QT_CXXFLAGS
  QT_LIBS
  QT_MOC
  QT_UIC
  QT_LRELEASE
  QT_LUPDATE
  QT_DIR

which respectively contain an "-I" flag pointing to the Qt include directory, link flags necessary to link with Qt and X, the full path to the meta object compiler and the user interface compiler both, and finally the variable QTDIR as Qt likes to see it defined.

Example lines for Makefile.in:

  CXXFLAGS = @QT_CXXFLAGS@
  MOC      = @QT_MOC@

After the variables have been set, a trial compile and link is performed to check the correct functioning of the meta object compiler. This test may fail when the different detected elements stem from different releases of the Qt framework. In that case, an error message is emitted and configure stops.

No common variables such as $LIBS or $CFLAGS are polluted.

Source Code

Download the latest version of ax_have_qt.m4 or browse the macro’s revision history.

License

Copyright © 2008 Bastiaan Veelo Bastiaan@Veelo.net
Copyright © 2014 Alex Henrie alexhenrie24@gmail.com

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without any warranty.