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[ocaml] Improve the Qt example

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Drop a method which has been deprecated then removed in Qt (but isn't
actually used in the example anyway) and clean up the steps a bit.

The example still doesn't build for me as the final step fails with:

File "_none_", line 1:
Error: Module `Dynlink' is unavailable (required by `Camlp4')

I know next to nothing about ocaml, so that may be something I've
failed to install, but I couldn't work out what.  I think the Qt
library linking needs updating too - there doesn't seem to be a
single `-lqt` now, but I don't use Qt either.
This commit is contained in:
Olly Betts 2022-02-01 11:46:39 +13:00
commit 9c16ce8ab3
1 changed files with 9 additions and 11 deletions
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20
Doc/Manual/Ocaml.html
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@ -720,7 +720,6 @@ Here's a simple example using Trolltech's Qt Library:
class QApplication {
public:
QApplication( int argc, char **argv );
void setMainWidget( QWidget *widget );
void exec();
};
@ -736,16 +735,15 @@ public:
<div class="code"><pre>
bash-2.05a$ QTPATH=/your/qt/path
bash-2.05a$ for file in swig.mli swig.ml swigp4.ml ; do swig -ocaml -co $file ; done
bash-2.05a$ ocamlc -c swig.mli ; ocamlc -c swig.ml
bash-2.05a$ ocamlc -I `camlp4 -where` -pp "camlp4o pa_extend.cmo q_MLast.cmo" -c swigp4.ml
bash-2.05a$ swig -ocaml -c++ -I$QTPATH/include qt.i
bash-2.05a$ mv qt_wrap.cxx qt_wrap.c
bash-2.05a$ ocamlc -c -ccopt -xc++ -ccopt -g -g -ccopt -I$QTPATH/include qt_wrap.c
bash-2.05a$ ocamlc -c qt.mli
bash-2.05a$ ocamlc -c qt.ml
bash-2.05a$ ocamlmktop -custom swig.cmo -I `camlp4 -where` \
$ QTPATH=/your/qt/path
$ for file in swig.mli swig.ml swigp4.ml ; do swig -ocaml -co $file ; done
$ ocamlc -c swig.mli ; ocamlc -c swig.ml
$ ocamlc -I `camlp4 -where` -pp "camlp4o pa_extend.cmo q_MLast.cmo" -c swigp4.ml
$ swig -ocaml -c++ -o qt_wrap.c qt.i
$ ocamlc -c -ccopt -xc++ -ccopt -g -g -ccopt -I$QTPATH/include qt_wrap.c
$ ocamlc -c qt.mli
$ ocamlc -c qt.ml
$ ocamlmktop -custom swig.cmo -I `camlp4 -where` \
camlp4o.cma swigp4.cmo qt_wrap.o qt.cmo -o qt_top -cclib \
-L$QTPATH/lib -cclib -lqt
</pre></div>