[Libreoffice] WaE patch for sc & filter

Hi *,

some --enable-werror fixed needed to make the build compile on mac. As
there area multiple ways to solve those "may not be initialized" and
"comparing signed with unsigned" ones, I submit it here for comments
(esp. the first one in the lotuswordpro one - casting tag to unsigned
(as the only one where it could be negative (VO_INVALID) has been
checked already, but still people might prefer to handle it
differently)

ciao
Christian

diff --git a/lotuswordpro/source/filter/lwpobjid.cxx b/lotuswordpro/source/filter/lwpobjid.cxx
index c220068..8df3ffd 100644
--- a/lotuswordpro/source/filter/lwpobjid.cxx
+++ b/lotuswordpro/source/filter/lwpobjid.cxx
@@ -235,7 +235,7 @@ LwpObject* LwpObjectID::obj(VO_TYPE tag) const
     LwpObject* pObj = pObjMgr->QueryObject(*this);
     if( tag!=VO_INVALID &&  (pObj) )
     {
-        if(tag!=pObj->GetTag())
+        if((unsigned)tag!=pObj->GetTag())
         {
             pObj=NULL;
         }
diff --git a/lotuswordpro/source/filter/lwpoleobject.cxx 
b/lotuswordpro/source/filter/lwpoleobject.cxx
index 8a0e359..c29828f 100644
--- a/lotuswordpro/source/filter/lwpoleobject.cxx
+++ b/lotuswordpro/source/filter/lwpoleobject.cxx
@@ -266,7 +266,7 @@ void LwpOleObject::GetChildStorageName(char *pObjName)
     char sName[MAX_STREAMORSTORAGENAME];
     //LwpObjectID ID(nLowID, GetObjectID()->GetHigh());
     sprintf( sName, "%s%X,%X", "Ole",
-      GetObjectID()->GetHigh(), GetObjectID()->GetLow());
+      GetObjectID()->GetHigh(), (unsigned int)GetObjectID()->GetLow());
 
     strcpy( pObjName, sName);
     return;
diff --git a/lotuswordpro/source/filter/lwpparastyle.cxx 
b/lotuswordpro/source/filter/lwpparastyle.cxx
index 664751e..e92b971 100644
--- a/lotuswordpro/source/filter/lwpparastyle.cxx
+++ b/lotuswordpro/source/filter/lwpparastyle.cxx
@@ -657,7 +657,7 @@ void LwpParaStyle::ApplyTab(XFParaStyle *pParaStyle, LwpTabOverride *pTabOverRid
         double fLen = LwpTools::ConvertFromUnitsToMetric(nPos) - dMarginLeft;
 
         //get leader type
-        sal_Unicode cLeader;
+        sal_Unicode cLeader = NULL;
         LwpTab::LeaderType leader= pTab->GetLeaderType();
         switch(leader)
         {
diff --git a/writerperfect/source/filter/DocumentCollector.cxx 
b/writerperfect/source/filter/DocumentCollector.cxx
index 1ef8dcc..88e85f2 100644
--- a/writerperfect/source/filter/DocumentCollector.cxx
+++ b/writerperfect/source/filter/DocumentCollector.cxx
@@ -655,7 +655,7 @@ void DocumentCollector::defineOrderedListLevel(const WPXPropertyList &propList)
     // is starting a new list at level 1 (and only level 1)
     if (pOrderedListStyle == NULL || pOrderedListStyle->getListID() != id  ||
         (propList["libwpd:level"] && propList["libwpd:level"]->getInt()==1 && 
-         (propList["text:start-value"] && propList["text:start-value"]->getInt() != 
(mWriterListStates.top().miLastListNumber+1))))
+         (propList["text:start-value"] && propList["text:start-value"]->getInt() != 
(int)(mWriterListStates.top().miLastListNumber+1))))
     {
         WRITER_DEBUG_MSG(("Attempting to create a new ordered list style (listid: %i)\n", id));
         WPXString sName;

diff --git a/sc/source/core/tool/docoptio.cxx b/sc/source/core/tool/docoptio.cxx
index b3d3323..dce5ece 100644
--- a/sc/source/core/tool/docoptio.cxx
+++ b/sc/source/core/tool/docoptio.cxx
@@ -482,7 +482,7 @@ ScDocCfg::ScDocCfg() :
                 break;
                 case SCFORMULAOPT_ENGLISH_FUNCNAME:
                 {
-                    sal_Bool bEnglish;
+                    sal_Bool bEnglish = false;
                     if (pValues[nProp] >>= bEnglish)
                         SetUseEnglishFuncName(bEnglish);
                 }