To Marc Epsie (x11/qt4 maintainer) and ports list,
The attached qt4-gcc8.diff is a set of patches for x11/qt4 to build it
with lang/gcc/8 in OpenBSD ports. This is the same diff that I mailed
on 19 Jan, but I got an error from the mailer daemon, and I didn't
resend qt4-gcc8.diff until now. My diff is missing the REVISION bump.
For now, OpenBSD only uses ports-gcc 4.9 or clang, so nothing is
broken. If, in the future, OpenBSD would switch ports-gcc from 4.9
to a newer version, then ports-gcc arches will fail to build qt4.
The last release of qt4 was in 2015; the code is old; most problems
are in qt4's old WebKit.
I am using this diff on powerpc with gcc-8.2.0p0 to package qt4 and
build ports that depend on qt4. I use lang/gcc/8 as ports-gcc by
editing infrastructure/mk/gcc4.port.mk (MODGCC4_VERSION?=8) and
devel/llvm/Makefile (GCC_VER = 8.2.0).
I also tested this diff on amd64 with gcc-4.9.4p15, gcc-8.2.0p0, and
base-clang 6. (To use ports-gcc, I did something like `make prepare`
then `make package COMPILER=ports-gcc`. The package built with gcc is
probably bad because I'm mixing libestdc++ from ports-gcc with libc++
from base-clang.) I didn't try to build qt4 with base-gcc.
The new chunk in patch-configure allows gcc >= 6 to build QtWebKit.
The other patches fix compiler errors. My patch comments mention
"gcc 6" because I used the patches with lang/gcc/6 before I switched
to gcc 8. The only change from gcc 6 to 8 was to edit
patch*HashSet_h; I didn't try gcc 6 with this edit.
Other distros (like Debian and NetBSD) probably have qt4 patches for
newer gcc. It might be better to use their patches instead of mine.
I saw some of NetBSD's patches, but I didn't want to copy their
bigger changes to JavaScriptCore. The 2 patches named
patch*MathExtras_h are unique to OpenBSD.
--
George Koehler <kern...@gmail.com>
Index: patches/patch-configure
===================================================================
RCS file: /cvs/ports/x11/qt4/patches/patch-configure,v
retrieving revision 1.27
diff -u -p -r1.27 patch-configure
--- patches/patch-configure 3 Jun 2015 07:28:01 -0000 1.27
+++ patches/patch-configure 11 Jan 2019 04:16:12 -0000
@@ -1,6 +1,7 @@
$OpenBSD: patch-configure,v 1.27 2015/06/03 07:28:01 dcoppa Exp $
---- configure.orig Thu May 7 16:14:56 2015
-+++ configure Sun May 31 13:28:28 2015
+Index: configure
+--- configure.orig
++++ configure
@@ -918,7 +918,7 @@ CFG_SILENT=no
CFG_GRAPHICS_SYSTEM=default
CFG_RUNTIME_SYSTEM=
@@ -37,3 +38,12 @@ $OpenBSD: patch-configure,v 1.27 2015/06
[ '!' -z "$QCONFIG_H" ] && mv -f "$QCONFIG_H" "$QMAKE_QCONFIG_H" #move
qmake's qconfig.h to qconfig.h.qmake
[ '!' -z "$OLD_QCONFIG_H" ] && mv -f "${OLD_QCONFIG_H}.old"
"$OLD_QCONFIG_H" #put back qconfig.h
[ "$QMAKE_BUILD_ERROR" = "yes" ] && exit 2
+@@ -7734,7 +7734,7 @@ case "$XPLATFORM" in
+ *-g++*)
+ # Check gcc's version
+ case "$(${QMAKE_CONF_COMPILER} -dumpversion)" in
+- 5*|4*|3.4*)
++ [1-9][0-9]*|[4-9]*|3.4*)
+ ;;
+ 3.3*)
+ canBuildWebKit="no"
Index:
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_cpp
===================================================================
RCS file:
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_cpp
diff -N
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_cpp
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_cpp
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,17 @@
+$OpenBSD$
+
+Prevent "error: cannot bind bitfield..." in gcc 6.
+https://bugs.webkit.org/show_bug.cgi?id=59261
+
+Index: src/3rdparty/javascriptcore/JavaScriptCore/runtime/Structure.cpp
+--- src/3rdparty/javascriptcore/JavaScriptCore/runtime/Structure.cpp.orig
++++ src/3rdparty/javascriptcore/JavaScriptCore/runtime/Structure.cpp
+@@ -157,7 +157,7 @@ Structure::~Structure()
+ {
+ if (m_previous) {
+ if (m_nameInPrevious)
+-
m_previous->table.remove(StructureTransitionTableHash::Key(RefPtr<UString::Rep>(m_nameInPrevious.get()),
m_attributesInPrevious), m_specificValueInPrevious);
++
m_previous->table.remove(StructureTransitionTableHash::Key(RefPtr<UString::Rep>(m_nameInPrevious.get()),
+m_attributesInPrevious), m_specificValueInPrevious);
+ else
+
m_previous->table.removeAnonymousSlotTransition(m_anonymousSlotsInPrevious);
+
Index:
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_h
===================================================================
RCS file:
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_h
diff -N
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_runtime_Structure_h
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,17 @@
+$OpenBSD$
+
+Prevent "error: cannot bind bitfield..." in gcc 6.
+https://bugs.webkit.org/show_bug.cgi?id=59261
+
+Index: src/3rdparty/javascriptcore/JavaScriptCore/runtime/Structure.h
+--- src/3rdparty/javascriptcore/JavaScriptCore/runtime/Structure.h.orig
++++ src/3rdparty/javascriptcore/JavaScriptCore/runtime/Structure.h
+@@ -317,7 +317,7 @@ namespace JSC {
+ TransitionTable* transitionTable = new TransitionTable;
+ setTransitionTable(transitionTable);
+ if (existingTransition)
+-
add(StructureTransitionTableHash::Key(RefPtr<UString::Rep>(existingTransition->m_nameInPrevious.get()),
existingTransition->m_attributesInPrevious), existingTransition,
existingTransition->m_specificValueInPrevious);
++
add(StructureTransitionTableHash::Key(RefPtr<UString::Rep>(existingTransition->m_nameInPrevious.get()),
+existingTransition->m_attributesInPrevious), existingTransition,
existingTransition->m_specificValueInPrevious);
+ }
+ } // namespace JSC
+
Index: patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_HashTable_h
===================================================================
RCS file:
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_HashTable_h
diff -N patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_HashTable_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_HashTable_h
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,16 @@
+$OpenBSD$
+
+Disable QTWTF::swap to prevent conflict with std::swap in gcc 6.
+
+Index: src/3rdparty/javascriptcore/JavaScriptCore/wtf/HashTable.h
+--- src/3rdparty/javascriptcore/JavaScriptCore/wtf/HashTable.h.orig
++++ src/3rdparty/javascriptcore/JavaScriptCore/wtf/HashTable.h
+@@ -257,7 +257,7 @@ namespace WTF {
+
+ using std::swap;
+
+-#if !COMPILER(MSVC) && !OS(QNX) && !defined(_LIBCPP_VERSION)
++#if 0 && !COMPILER(MSVC) && !OS(QNX) && !defined(_LIBCPP_VERSION)
+ // The Dinkumware C++ library (used by MSVC and QNX) and clang's libc++
have a swap for pairs defined.
+
+ // swap pairs by component, in case of pair members that specialize swap
Index: patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_MathExtras_h
===================================================================
RCS file:
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_MathExtras_h
diff -N
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_MathExtras_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_MathExtras_h
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,18 @@
+$OpenBSD$
+
+Don't define ::isfinite and ::signbit. These conflict with
+std::isfinite and std::signbit in gcc 6, cause errors
+'call of overloaded... is ambigous'.
+
+Index: src/3rdparty/javascriptcore/JavaScriptCore/wtf/MathExtras.h
+--- src/3rdparty/javascriptcore/JavaScriptCore/wtf/MathExtras.h.orig
++++ src/3rdparty/javascriptcore/JavaScriptCore/wtf/MathExtras.h
+@@ -85,7 +85,7 @@ inline bool signbit(double x) { return x < 0.0; } // F
+
+ #endif
+
+-#if OS(OPENBSD)
++#if 0 && OS(OPENBSD)
+
+ #ifndef isfinite
+ inline bool isfinite(double x) { return finite(x); }
Index: patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_TypeTraits_h
===================================================================
RCS file:
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_TypeTraits_h
diff -N
patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_TypeTraits_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_3rdparty_javascriptcore_JavaScriptCore_wtf_TypeTraits_h
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,26 @@
+$OpenBSD$
+
+Disable __GLIBCXX__ code to prevent error from gcc 6:
+error: 'std::tr1' has not been declared
+
+Index: src/3rdparty/javascriptcore/JavaScriptCore/wtf/TypeTraits.h
+--- src/3rdparty/javascriptcore/JavaScriptCore/wtf/TypeTraits.h.orig
++++ src/3rdparty/javascriptcore/JavaScriptCore/wtf/TypeTraits.h
+@@ -24,7 +24,7 @@
+
+ #include "Platform.h"
+
+-#if (defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
++#if (0 && defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
+ #include <type_traits>
+ #endif
+
+@@ -166,7 +166,7 @@ namespace WTF {
+ typedef T Type;
+ };
+
+-#if (defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
++#if (0 && defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
+
+ // GCC's libstdc++ 20070724 and later supports C++ TR1 type_traits in the
std namespace.
+ // VC10 (VS2010) and later support C++ TR1 type_traits in the std::tr1
namespace.
Index: patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_HashSet_h
===================================================================
RCS file: patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_HashSet_h
diff -N patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_HashSet_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_HashSet_h
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,36 @@
+$OpenBSD$
+
+Prevent error from gcc 6:
+HashSet.h:191:32: error: could not convert ...
+from 'std::pair<WTF::HashTableIterator<...>, bool>'
+to 'std::pair<WTF::HashTableConstIteratorAdapter<...>, bool>'
+
+gcc 6 accepts 'pair<iterator, bool>(p.first, p.second)' but gcc 8
+needs 'iterator(p.first)' to convert the iterator.
+
+The iterator_const_cast for MSVC doesn't work in gcc 6.
+
+Index: src/3rdparty/webkit/Source/JavaScriptCore/wtf/HashSet.h
+--- src/3rdparty/webkit/Source/JavaScriptCore/wtf/HashSet.h.orig
++++ src/3rdparty/webkit/Source/JavaScriptCore/wtf/HashSet.h
+@@ -188,7 +188,8 @@ namespace WTF {
+ #if COMPILER(MSVC) && _MSC_VER >= 1700
+ return iterator_const_cast(m_impl.add(value));
+ #else
+- return m_impl.add(value);
++ pair<typename HashTableType::iterator, bool> p = m_impl.add(value);
++ return pair<iterator, bool>(iterator(p.first), p.second);
+ #endif
+ }
+
+@@ -201,7 +202,9 @@ namespace WTF {
+ #if COMPILER(MSVC) && _MSC_VER >= 1700
+ return iterator_const_cast(m_impl.template addPassingHashCode<T, T,
Adapter>(value, value));
+ #else
+- return m_impl.template addPassingHashCode<T, T, Adapter>(value,
value);
++ pair<typename HashTableType::iterator, bool> p =
++ m_impl.template addPassingHashCode<T, T, Adapter>(value, value);
++ return pair<iterator, bool>(iterator(p.first), p.second);
+ #endif
+ }
+
Index: patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_MathExtras_h
===================================================================
RCS file:
patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_MathExtras_h
diff -N patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_MathExtras_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_MathExtras_h
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,18 @@
+$OpenBSD$
+
+Don't define ::isfinite and ::signbit. These conflict with
+std::isfinite and std::signbit in gcc 6, cause errors
+'call of overloaded... is ambigous'.
+
+Index: src/3rdparty/webkit/Source/JavaScriptCore/wtf/MathExtras.h
+--- src/3rdparty/webkit/Source/JavaScriptCore/wtf/MathExtras.h.orig
++++ src/3rdparty/webkit/Source/JavaScriptCore/wtf/MathExtras.h
+@@ -99,7 +99,7 @@ inline bool signbit(double x) { return copysign(1.0, x
+
+ #endif
+
+-#if OS(OPENBSD)
++#if 0 && OS(OPENBSD)
+
+ #ifndef isfinite
+ inline bool isfinite(double x) { return finite(x); }
Index: patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_TypeTraits_h
===================================================================
RCS file:
patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_TypeTraits_h
diff -N patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_TypeTraits_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_3rdparty_webkit_Source_JavaScriptCore_wtf_TypeTraits_h
11 Jan 2019 04:16:12 -0000
@@ -0,0 +1,26 @@
+$OpenBSD$
+
+Disable __GLIBCXX__ code to prevent error from gcc 6:
+error: 'std::tr1' has not been declared
+
+Index: src/3rdparty/webkit/Source/JavaScriptCore/wtf/TypeTraits.h
+--- src/3rdparty/webkit/Source/JavaScriptCore/wtf/TypeTraits.h.orig
++++ src/3rdparty/webkit/Source/JavaScriptCore/wtf/TypeTraits.h
+@@ -24,7 +24,7 @@
+
+ #include "Platform.h"
+
+-#if (defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
++#if (0 && defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
+ #include <type_traits>
+ #endif
+
+@@ -179,7 +179,7 @@ namespace WTF {
+ typedef T Type;
+ };
+
+-#if (defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
++#if (0 && defined(__GLIBCXX__) && (__GLIBCXX__ >= 20070724) &&
defined(__GXX_EXPERIMENTAL_CXX0X__)) || (defined(_MSC_VER) && (_MSC_VER >=
1600))
+
+ // GCC's libstdc++ 20070724 and later supports C++ TR1 type_traits in the
std namespace.
+ // VC10 (VS2010) and later support C++ TR1 type_traits in the std::tr1
namespace.
Index: patches/patch-src_3rdparty_webkit_Source_WebCore_dom_Element_cpp
===================================================================
RCS file: patches/patch-src_3rdparty_webkit_Source_WebCore_dom_Element_cpp
diff -N patches/patch-src_3rdparty_webkit_Source_WebCore_dom_Element_cpp
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_3rdparty_webkit_Source_WebCore_dom_Element_cpp 11 Jan
2019 04:16:12 -0000
@@ -0,0 +1,18 @@
+$OpenBSD$
+
+Prevent error from gcc 6.
+Element.cpp:1083:60: error: operands to ?: have different types
+'WebCore::RenderStyle*' and 'bool'
+
+Index: src/3rdparty/webkit/Source/WebCore/dom/Element.cpp
+--- src/3rdparty/webkit/Source/WebCore/dom/Element.cpp.orig
++++ src/3rdparty/webkit/Source/WebCore/dom/Element.cpp
+@@ -1080,7 +1080,7 @@ void Element::recalcStyle(StyleChange change)
+ {
+ // Ref currentStyle in case it would otherwise be deleted when
setRenderStyle() is called.
+ RefPtr<RenderStyle> currentStyle(renderStyle());
+- bool hasParentStyle = parentNodeForRenderingAndStyle() ?
parentNodeForRenderingAndStyle()->renderStyle() : false;
++ bool hasParentStyle = parentNodeForRenderingAndStyle() ?
bool(parentNodeForRenderingAndStyle()->renderStyle()) : false;
+ bool hasDirectAdjacentRules = currentStyle &&
currentStyle->childrenAffectedByDirectAdjacentRules();
+ bool hasIndirectAdjacentRules = currentStyle &&
currentStyle->childrenAffectedByForwardPositionalRules();
+
Index: patches/patch-src_plugins_accessible_widgets_itemviews_cpp
===================================================================
RCS file: patches/patch-src_plugins_accessible_widgets_itemviews_cpp
diff -N patches/patch-src_plugins_accessible_widgets_itemviews_cpp
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_plugins_accessible_widgets_itemviews_cpp 11 Jan 2019
04:16:12 -0000
@@ -0,0 +1,23 @@
+$OpenBSD$
+
+Fix build with gcc 6:
+error: invalid conversion from 'int' to
+'QItemSelectionModel::SelectionFlag' [-fpermissive]
+
+Columns & Deselect = 0x0040 & 0x0004 = 0 is an int, but
+Columns | Deselect calls Qt's operator | and returns a Qt internal type
+to allow the conversion. Qt also allows a conversion from constant 0,
+but gcc 6 seems not to allow Columns & Deselect as constant 0.
+
+Index: src/plugins/accessible/widgets/itemviews.cpp
+--- src/plugins/accessible/widgets/itemviews.cpp.orig
++++ src/plugins/accessible/widgets/itemviews.cpp
+@@ -393,7 +393,7 @@ bool QAccessibleTable2::unselectColumn(int column)
+ QModelIndex index = view()->model()->index(0, column,
view()->rootIndex());
+ if (!index.isValid() || view()->selectionMode() &
QAbstractItemView::NoSelection)
+ return false;
+- view()->selectionModel()->select(index, QItemSelectionModel::Columns &
QItemSelectionModel::Deselect);
++ view()->selectionModel()->select(index, QItemSelectionModel::Columns |
QItemSelectionModel::Deselect);
+ return true;
+ }
+
Index: patches/patch-src_xmlpatterns_api_qcoloroutput_p_h
===================================================================
RCS file: patches/patch-src_xmlpatterns_api_qcoloroutput_p_h
diff -N patches/patch-src_xmlpatterns_api_qcoloroutput_p_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-src_xmlpatterns_api_qcoloroutput_p_h 11 Jan 2019 04:16:12
-0000
@@ -0,0 +1,21 @@
+$OpenBSD$
+
+Use unsigned arithmetic to prevent signed overflow error from gcc 6.
+error: shift expression '(1048575 << 20)' overflows [-fpermissive]
+error: enumerator value for 'BackgroundMask' is not an integer constant
+
+BackgroundMask overflows because it sets bits 20 to 39, but there are
+no bits above 31 in an int.
+
+Index: src/xmlpatterns/api/qcoloroutput_p.h
+--- src/xmlpatterns/api/qcoloroutput_p.h.orig
++++ src/xmlpatterns/api/qcoloroutput_p.h
+@@ -71,7 +71,7 @@ namespace QPatternist
+ BackgroundShift = 20,
+ SpecialShift = 20,
+ ForegroundMask = ((1 << ForegroundShift) - 1) << ForegroundShift,
+- BackgroundMask = ((1 << BackgroundShift) - 1) << BackgroundShift
++ BackgroundMask = ((1U << BackgroundShift) - 1) << BackgroundShift
+ };
+
+ public:
