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The cstddef discovery is from https://stackoverflow.com/questions/52567517/freefilesync-c-error-byte-is-not-a-member-of-std
Some changes just make the application work better in an installed setting (e.g., the hard-coded resouce path).
Tricking the wxWidgets ABI version comes from https://stackoverflow.com/questions/45123664/wxwidgets-runtime-error-mismatch-version/47822976#47822976
FreeFileSync 10.11 updated the default compile flags to -std=c++2a, but this fails on gcc 4.8.5 on el7. Reverting to -std=c++17 allows the application to compile.
diff -Naur 10.13-0/FreeFileSync/Source/base/ffs_paths.cpp 10.13-1/FreeFileSync/Source/base/ffs_paths.cpp
--- 10.13-0/FreeFileSync/Source/base/ffs_paths.cpp 2019-06-14 20:23:07.615661499 -0400
+++ 10.13-1/FreeFileSync/Source/base/ffs_paths.cpp 2019-06-14 20:36:28.178274292 -0400
@@ -55,7 +55,8 @@
Zstring fff::getResourceDirPf()
{
- return getProcessParentFolderPath() + FILE_NAME_SEPARATOR + Zstr("Resources") + FILE_NAME_SEPARATOR;
+ // For Fedora, EL and Devuan, install to /usr/share/freefilesync specificly
+ return Zstr("/usr/share/freefilesync/");
}
diff -Naur -x '*.orig' -x '*.rej' -x '*.swp' 10.11-0/FreeFileSync/Source/Makefile 10.11-1/FreeFileSync/Source/Makefile
--- 10.11-0/FreeFileSync/Source/Makefile 2019-04-12 07:59:45.042147902 -0400
+++ 10.18-1/FreeFileSync/Source/Makefile 2019-11-21 20:59:25.548277619 -0500
@@ -1,10 +1,10 @@
-EXENAME = FreeFileSync_$(shell arch)
+EXENAME = FreeFileSync
-CXXFLAGS = -std=c++2a -pipe -DWXINTL_NO_GETTEXT_MACRO -I../.. -I../../zenXml -include "zen/i18n.h" -include "zen/warn_static.h" \
+CXXFLAGS = -std=c++17 -pipe -DWXINTL_NO_GETTEXT_MACRO -I../.. -I../../zenXml -include "zen/i18n.h" -include "zen/warn_static.h" \
-Wall -Wfatal-errors -Wmissing-include-dirs -Wswitch-enum -Wcast-align -Wshadow -Wnon-virtual-dtor \
- -O3 -DNDEBUG `wx-config --cxxflags --debug=no` -pthread
+ -O3 -DNDEBUG -fPIC `wx-config --version=3.0 --cxxflags --debug=no` -pthread
-LINKFLAGS = -s -no-pie `wx-config --libs std, aui --debug=no` -pthread
+LINKFLAGS = -s -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-z,relro -no-pie `wx-config --version=3.0 --libs std, aui --debug=no | sed -r -e 's/-[^[:space:]]+web[^[:space:]]+//;'` -lz -pthread
CXXFLAGS += `pkg-config --cflags openssl`
@@ -17,6 +17,7 @@
LINKFLAGS += `pkg-config --libs libssh2`
CXXFLAGS += `pkg-config --cflags gtk+-2.0`
+LINKFLAGS += `pkg-config --libs gtk+-2.0`
#treat as system headers so that warnings are hidden:
CXXFLAGS += -isystem/usr/include/gtk-2.0
diff -Naur -x '*.orig' -x '*.rej' -x '*.swp' 10.11-0/FreeFileSync/Source/RealTimeSync/application.h 10.11-1/FreeFileSync/Source/RealTimeSync/application.h
--- 10.11-0/FreeFileSync/Source/RealTimeSync/application.h 2019-04-12 07:59:45.035147580 -0400
+++ 10.11-1/FreeFileSync/Source/RealTimeSync/application.h 2019-04-12 10:19:57.227913415 -0400
@@ -7,6 +7,8 @@
#ifndef APPLICATION_H_18506781708176342677
#define APPLICATION_H_18506781708176342677
+#define __GXX_ABI_VERSION 1002
+
#include <wx/app.h>
diff -Naur -x '*.orig' -x '*.rej' -x '*.swp' 10.11-0/FreeFileSync/Source/RealTimeSync/Makefile 10.11-1/FreeFileSync/Source/RealTimeSync/Makefile
--- 10.11-0/FreeFileSync/Source/RealTimeSync/Makefile 2019-04-12 07:59:45.008146336 -0400
+++ 10.18-1/FreeFileSync/Source/RealTimeSync/Makefile 2019-11-22 10:14:04.326175203 -0500
@@ -1,13 +1,14 @@
-EXENAME = RealTimeSync_$(shell arch)
+EXENAME = RealTimeSync
-CXXFLAGS = -std=c++2a -pipe -DWXINTL_NO_GETTEXT_MACRO -I../../.. -I../../../zenXml -include "zen/i18n.h" -include "zen/warn_static.h" \
+CXXFLAGS = -std=c++17 -pipe -DWXINTL_NO_GETTEXT_MACRO -I../../.. -I../../../zenXml -include "zen/i18n.h" -include "zen/warn_static.h" \
-Wall -Wfatal-errors -Wmissing-include-dirs -Wswitch-enum -Wcast-align -Wshadow -Wnon-virtual-dtor \
- -O3 -DNDEBUG `wx-config --cxxflags --debug=no` -pthread
+ -O3 -DNDEBUG -fPIC `wx-config --version=3.0 --cxxflags --debug=no` -pthread
-LINKFLAGS = -s -no-pie `wx-config --libs std, aui --debug=no` -pthread
+LINKFLAGS = -s -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -no-pie `wx-config --version=3.0 --cxxflags --libs std, aui --debug=no | sed -r -e 's/-[^[:space:]]+web[^[:space:]]+//;'` -lz -pthread
#Gtk - support "no button border"
CXXFLAGS += `pkg-config --cflags gtk+-2.0`
+LINKFLAGS += `pkg-config --libs gtk+-2.0`
#treat as system headers so that warnings are hidden:
CXXFLAGS += -isystem/usr/include/gtk-2.0
diff -x '*.swp' -x '.git*' -x '*.orig' -x '*.rej' -Naur 10.19-0/FreeFileSync/Source/ui/small_dlgs.cpp 10.19-1/FreeFileSync/Source/ui/small_dlgs.cpp
--- 10.11-0/FreeFileSync/Source/ui/small_dlgs.cpp 2019-12-27 07:56:06.714625467 -0500
+++ 10.19-1/FreeFileSync/Source/ui/small_dlgs.cpp 2019-12-27 08:56:49.251467477 -0500
@@ -95,6 +95,8 @@
build += L"64 Bit";
#endif
+ build += L" for CentOS 7/Fedora 29";
+
build += SPACED_BULLET;
build += formatTime<wxString>(FORMAT_DATE, getCompileTime());
diff -Naur -x '*.orig' -x '*.rej' -x '*.swp' 10.11-0/wx+/app_main.h 10.11-1/wx+/app_main.h
--- 10.11-0/wx+/app_main.h 2019-04-12 07:59:44.936143019 -0400
+++ 10.11-1/wx+/app_main.h 2019-04-12 10:19:57.228913439 -0400
@@ -7,6 +7,8 @@
#ifndef APP_MAIN_H_08215601837818347575856
#define APP_MAIN_H_08215601837818347575856
+#define __GXX_ABI_VERSION 1002
+
#include <wx/window.h>
#include <wx/app.h>
diff -Naur -x '*.orig' -x '*.rej' -x '*.swp' 10.11-0/zen/ring_buffer.h 10.11-1/zen/ring_buffer.h
--- 10.11-0/zen/ring_buffer.h 2019-04-12 07:59:46.098196548 -0400
+++ 10.11-1/zen/ring_buffer.h 2019-04-12 10:19:57.228913439 -0400
@@ -9,6 +9,7 @@
#include <cassert>
#include "scope_guard.h"
+#include <cstddef>
namespace zen
diff -Naur -x '*.orig' -x '*.rej' -x '*.swp' 10.11-0/zen/serialize.h 10.11-1/zen/serialize.h
--- 10.11-0/zen/serialize.h 2019-04-12 07:59:46.080195719 -0400
+++ 10.11-1/zen/serialize.h 2019-04-12 10:19:57.229913463 -0400
@@ -9,6 +9,7 @@
#include <functional>
#include <cstdint>
+#include <cstddef>
#include "string_base.h"
//keep header clean from specific stream implementations! (e.g.file_io.h)! used by abstract.h!
Message: For -std=c++17 we do not get to use charconv. It appears it is not actually in use, because the application compiles with this patch.
diff -Naur -x '*.orig' -x '.git*' -x '*.swp' -x '*.rej' 10.18-0/zen/legacy_compiler.cpp 10.18-1/zen/legacy_compiler.cpp
--- 10.18-0/zen/legacy_compiler.cpp 2019-11-21 20:59:02.633016149 -0500
+++ 10.18-1/zen/legacy_compiler.cpp 2019-11-21 20:59:31.042340308 -0500
@@ -5,7 +5,7 @@
// *****************************************************************************
#include "legacy_compiler.h"
-#include <charconv>
+//#include <charconv>
//1. including this one in string_tools.h blows up VC++:
// "An internal error has occurred in the compiler. (compiler file 'd:\agent\_work\1\s\src\vctools\Compiler\Utc\src\p2\p2symtab.c', line 2618)"
//2. using inside PCH: "fatal error C1076: compiler limit: internal heap limit reached"
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