Search for Trolltech's Qt GUI framework.
Searches common directories for Qt include files, libraries and Qt binary
utilities. The macro supports several different versions of the Qt
framework being installed on the same machine.
Without options, the macro is designed to look for the latest library,
i.e., the highest definition of QT_VERSION in qglobal.h.
By use of one or more options a different library may be selected. There
are two different sets of options.
Both sets contain the option --with-Qt-lib=LIB which can be used to
force the use of a particular version of the library file when more than
one are available. LIB must be in the form as it would appear behind the
"-l" option to the compiler. Examples for LIB would be "qt-mt" for the
multi-threaded version and "qt" for the regular version.
In addition to this, the first set consists of an option --with-Qt-dir=DIR
which can be used when the installation conforms to Trolltech's standard
installation, which means that header files are in DIR/include, binary
utilities are in DIR/bin and the library is in DIR/lib.
The second set of options can be used to indicate individual locations
for the header files, the binary utilities and the library file, in
addition to the specific version of the library file.
The following shell variable is set to either "yes" or "no":
Additionally, the following variables are exported:
which respectively contain an "-I" flag pointing to the Qt include
directory, link flags necessary to link with Qt and X, the name of the
meta object compiler and the user interface compiler both with full path,
and finaly the variable QTDIR as Trolltech likes to see it defined (if
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.
--with-Qt-dir=DIR: DIR is equal to $QTDIR if you have followed the
installation instructions of Trolltech. Header files are in DIR/include,
binary utilities are in DIR/bin and the library is in DIR/lib.
--with-Qt-include-dir=DIR: Qt header files are in DIR.
--with-Qt-bin-dir=DIR: Qt utilities such as moc and uic are in DIR.
--with-Qt-lib-dir=DIR: The Qt library is in DIR.
--with-Qt-lib=LIB: Use -lLIB to link with the Qt library.
If some option "=no" or, equivalently, a --without-Qt-* version is given
in stead of a --with-Qt-*, "have_qt" is set to "no" and the other
variables are set to the empty string.
Calls BNV_PATH_QT_DIRECT as a subroutine.