On Wed, Jun 15, 2016 at 5:40 AM, Benoît Minisini
<gam...@users.sourceforge.net> wrote:
> Le 14/06/2016 13:21, Ian Haywood a écrit :
>>
>> The problem quite complicated. Gambas looks for Qt4 and Qt5. If both are
>> found,
>> Qt4 is loaded.
>
> No, if Qt5 and Qt4 are present, Qt5 is used.
>
> The choice between both is implemented in the gb.gui.qt component. So if
> you have ideas about how to enhance the algorithm, tell me!
From the 3.8.4 sources: main/lib/gui.qt/main.c
I interperse my "translation", tell me where I'm wrong
59 if (use == USE_NOTHING)
so GB_GUI hasn't been set
60 {
61 use = USE_GB_QT4;
try Qt4
63 env = getenv("KDE_FULL_SESSION");
64
65 if (env && !strcmp(env, "true"))
66 {
67 env = getenv("KDE_SESSION_VERSION");
68 if (env)
69 {
70 if (strcmp(env, "4") == 0)
71 use = USE_GB_QT4;
72 else if (strcmp(env, "5") == 0)
73 use = USE_GB_QT5;
74 }
75 }
76 }
look for some KDE variables (which won't be set at all on non-KDE systems)
78 switch (use)
79 {
80 case USE_GB_QT4: comp = "gb.qt4"; break;
81 case USE_GB_QT5: comp = "gb.qt5"; break;
82 default: comp = "gb.qt5"; break;
83 }
turn setting constant into a string (remember we have set to
"USE_GB_QT4" above so "gb.qt4" will always be selected here)
85 if (GB.Component.Load(comp))
try the first one
86 {
87 comp2 = use == USE_GB_QT5 ? "gb.qt4" : "gb.qt5";
that didn't work, try the other
89 if (GB.Component.Load(comp2))
90 {
fail if that doesn't work either.
91 fprintf(stderr, "gb.gui.qt: error:
unable to find any QT component\n");
92 exit(1);
93 }
my patch is very, very simple: line 61 becomes "use = USE_GB_QT5;",
and so Qt5 is loaded first.
Ian
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