qt-webkit: rebuild for fixed moc-qt4

Fixed moc-qt4 allows building qt-webkit again.
Set the correct include paths for cross builds.
Also use the same -std=gnu++98 which is used for qt itself.

srcpkgs/qt-webkit/files/fix-saturated_arithmetic.patch

@@ -0,0 +1,20 @@
+--- qtwebkit-2.3.4/Source/WTF/wtf/SaturatedArithmetic.h	2014-09-24 13:42:05.000000000 +0200
++++ qtwebkit-2.3.4/Source/WTF/wtf/SaturatedArithmetic.h	2017-02-19 16:27:58.343676787 +0100
+@@ -43,7 +43,7 @@
+ 
+     // Can only overflow if the signed bit of the two values match. If the signed
+     // bit of the result and one of the values differ it did overflow.
+-    if (!((ua ^ ub) >> 31) & (result ^ ua) >> 31)
++    if (~((ua ^ ub) >> 31) & ((result ^ ua) >> 31))
+         result = std::numeric_limits<int>::max() + (ua >> 31);
+ 
+     return result;
+@@ -57,7 +57,7 @@
+ 
+     // Can only overflow if the signed bit of the two values do not match. If the
+     // signed bit of the result and the first value differ it did overflow.
+-    if ((ua ^ ub) >> 31 & (result ^ ua) >> 31)
++    if (((ua ^ ub) >> 31) & ((result ^ ua) >> 31))
+         result = std::numeric_limits<int>::max() + (ua >> 31);
+ 
+     return result;

srcpkgs/qt-webkit/template

@@ -1,7 +1,7 @@
 # Template file for 'qt-webkit'
 pkgname=qt-webkit
 version=2.3.4
-revision=4
+revision=6
 _qtver=4.8.7
 wrksrc="qtwebkit-${version}"
 create_wrksrc=yes
@@ -24,6 +24,9 @@ if [ -n "$CROSS_BUILD" ]; then
 	hostmakedepends+=" qt-devel qt-designer-devel"
 fi
 
+# Use the same value for -std= as in qt
+CXXFLAGS="-std=gnu++98"
+
 post_extract() {
 	patch -p1 < ${FILESDIR}/fix-gcc6.patch
 	patch -p1 < ${FILESDIR}/fix-execinfo.patch
@@ -63,6 +66,8 @@ do_build() {
 		opts+=" --qmakearg=\"QMAKE_CXXFLAGS_RELEASE='$CXXFLAGS'\""
 		opts+=" --qmakearg=\"QMAKE_LFLAGS='$LDFLAGS'\""
 		opts+=" --qmakearg=\"QMAKE_LFLAGS_RELEASE='$LDFLAGS'\""
+		opts+=" --qmakearg=\"QMAKE_INCDIR=${XBPS_CROSS_BASE}/usr/include\""
+		opts+=" --qmakearg=\"QMAKE_INCDIR_QT=${XBPS_CROSS_BASE}/usr/include\""
 	fi
 	export QTDIR=/usr
 	export PATH="/usr/lib/qt/bin:$PATH"