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Date: Sun, 21 Mar 2010 14:06:21 -0400
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Subject: cygwin builds and unicode support
From: mike marchywka <marchywka AT gmail DOT com>
To: cygwin AT cygwin DOT com
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I'm trying to build QT webkit on cygwin and running into
all kinds of confusions over char and wide char- it compiled right
away on debian. I'm not entirely sure this is an issue with cygwin as much
as this project and something stupid I'm missing
but I'll see what kind of response I get here as maybe someone else
has built this on cygwin :)
First, there were some issues with windoze calls that can either
end in "A" or "W" for ascii and wide char params. These were
easy to fix.

That looked like it was fine until I ran into this, a bunch of
ambig overloads based on confusion with uint and ushort

../JavaScriptCore/wtf/unicode/qt4/UnicodeQt4.h:401: error: call of
overloaded `direction(UChar32&)' is ambiguous
../../../../include/QtCore/../../src/corelib/tools/qchar.h:303: note:
candidates are: static QChar::Direction QChar::direction(uint)
../../../../include/QtCore/../../src/corelib/tools/qchar.h:304: note:
static QChar::Direction QChar::direction(ushort)

As near as I can tell, the typedefs are "normal",

$ grep "uint;" `find -type f` | grep "typedef\|define"
./src/corelib/global/qglobal.h:typedef unsigned int uint;


$ grep "ushort" `find -type f` | grep "typedef\|define"

./src/corelib/global/qglobal.h:typedef unsigned short ushort;

but I'm not sure I understand the ambiguity if UChar32 is
an unsigned int but apparently it can be deffed to something
called int32_t.

$ grep "UChar32;" `find -type f` | grep "typedef\|define"

./src/3rdparty/javascriptcore/JavaScriptCore/wtf/unicode/glib/UnicodeGLib.h:typedef
int32_t UChar32;
./src/3rdparty/javascriptcore/JavaScriptCore/wtf/unicode/qt4/UnicodeQt4.h:typedef
uint32_t UChar32;
./src/3rdparty/webkit/JavaScriptCore/wtf/unicode/glib/UnicodeGLib.h:typedef
int32_t UChar32;
./src/3rdparty/webkit/JavaScriptCore/wtf/unicode/qt4/UnicodeQt4.h:typedef
uint32_t UChar32;


So, I guess my question is is this likely to relate to some common
issue trying to build on cygwin or is it just something in the project
I need to hunt down?
And, why is this ambiguous shouldn't it take the unsigned int overload?
I'll ask if this is a compiler problem just to goad someone to explain
to me what I'm missing :)


Thanks.


-- 
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Mike Marchywka
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