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Author: B Stack
Source: Original research
Date: 2020-03-18
Message: Main patch to compile on Devuan using GTK3. BROKEN for FreeFileSync 10.21!
This reintroduces the gtk-3 usage, because Debian/Devuan stopped packaging libwxgtk3.0-dev (which used gtk2) and only does libwxgtk3.0-gtk3-dev. However, by reintroducing the gtk3, it brings back the old gtk3 instability from my previous packaging effort: https://freefilesync.org/forum/viewtopic.php?t=4918. /mnt/public/packages/old/freefilesync/freefilesync-9.7-1.master.tgz. Upstream never replied, but did note in the source that gtk3 is inherently unstable.
diff -x '*.swp' -x '.git*' -x '*.orig' -x '*.rej' -Naur 10.18-0/FreeFileSync/Source/Makefile 10.18-1/FreeFileSync/Source/Makefile
--- 10.11-0/FreeFileSync/Source/Makefile 2019-04-12 08:05:57.000000000 -0400
+++ 10.18-1/FreeFileSync/Source/Makefile 2019-11-21 09:42:57.408243242 -0500
@@ -16,9 +16,10 @@
cxxFlags += `pkg-config --cflags libssh2`
linkFlags += `pkg-config --libs libssh2`
-cxxFlags += `pkg-config --cflags gtk+-2.0`
+cxxFlags += `pkg-config --cflags gtk+-3.0`
+linkFlags += `pkg-config --libs gtk+-3.0`
#treat as system headers so that warnings are hidden:
-cxxFlags += -isystem/usr/include/gtk-2.0
+cxxFlags += -isystem/usr/include/gtk-3.0
#support for SELinux (optional)
SELINUX_EXISTING=$(shell pkg-config --exists libselinux && echo YES)
diff -x '*.rej' -x '*.orig' -x '*.git*' -Naur 10.24-0/FreeFileSync/Source/RealTimeSync/Makefile 10.24-1/FreeFileSync/Source/RealTimeSync/Makefile
--- 10.24-0/FreeFileSync/Source/RealTimeSync/Makefile 2020-05-17 18:30:59.289498093 -0400
+++ 10.24-1/FreeFileSync/Source/RealTimeSync/Makefile 2020-05-17 19:32:59.791394275 -0400
@@ -7,9 +7,10 @@
linkFlags += -s `wx-config --libs std, aui --debug=no` -lz -pthread
#Gtk - support "no button border"
-cxxFlags += `pkg-config --cflags gtk+-2.0`
+cxxFlags += `pkg-config --cflags gtk+-3.0`
+linkFlags += `pkg-config --libs gtk+-3.0`
#treat as system headers so that warnings are hidden:
-cxxFlags += -isystem/usr/include/gtk-2.0
+cxxFlags += -isystem/usr/include/gtk-3.0
cppFiles=
cppFiles+=application.cpp
diff -x '*.swp' -x '.git*' -x '*.orig' -x '*.rej' -Naur 10.18-0/wx+/dc.h 10.18-1/wx+/dc.h
--- 10.18-0/wx+/dc.h 2019-11-21 08:24:23.967769384 -0500
+++ 10.18-1/wx+/dc.h 2019-11-21 09:42:12.779786504 -0500
@@ -54,7 +54,7 @@
#ifdef wxHAVE_DPI_INDEPENDENT_PIXELS //pulled from wx/window.h: https://github.com/wxWidgets/wxWidgets/blob/master/include/wx/window.h#L2029
return d; //e.g. macOS, GTK3
#else //https://github.com/wxWidgets/wxWidgets/blob/master/src/common/wincmn.cpp#L2865
- static_assert(GTK_MAJOR_VERSION == 2);
+ static_assert(GTK_MAJOR_VERSION == 3);
//GTK2 doesn't properly support high DPI: https://freefilesync.org/forum/viewtopic.php?t=6114
//=> requires general fix at wxWidgets-level
assert(wxTheApp); //only call after wxWidgets was initalized!
diff -x '*.swp' -x '.git*' -x '*.orig' -x '*.rej' -Naur 10.18-0/FreeFileSync/Source/base/icon_loader.cpp 10.18-1/FreeFileSync/Source/base/icon_loader.cpp
--- 10.18-0/FreeFileSync/Source/base/icon_loader.cpp 2019-11-21 08:24:23.955769262 -0500
+++ 10.18-1/FreeFileSync/Source/base/icon_loader.cpp 2019-11-21 09:42:15.439813730 -0500
@@ -18,7 +18,7 @@
namespace
{
-static_assert(GTK_MAJOR_VERSION == 2, "FreeFileSync does NOT (currently) support GTK3! The GTK calls below will lead to crashes due to not being thread-safe on GTK3.");
+static_assert(GTK_MAJOR_VERSION == 3, "FreeFileSync does NOT (currently) support GTK3! The GTK calls below will lead to crashes due to not being thread-safe on GTK3.");
//gdk_threads_enter(); + ZEN_ON_SCOPE_EXIT(::gdk_threads_leave); is NOT enough; e.g. GTK3 + openSuse still crashes with:
// Gtk:ERROR:gtkicontheme.c:4026:proxy_pixbuf_destroy: assertion failed: (icon_info->proxy_pixbuf != NULL)
//GTK icon theme internals: https://github.com/GNOME/gtk/blob/master/gtk/gtkicontheme.c
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