If one has more than one version of wx-widgets installed, there might be problems at configure time because the wrong version might be used.
The attached patch permits to fix that problem by using a variable
WX_CONFIG=wx-config --version=3.2
--- a/FreeFileSync/Source/Makefile
+++ b/FreeFileSync/Source/Makefile
@@ -2,12 +2,13 @@
exeName = FreeFileSync
PKG_CONFIG=pkg-config
+WX_CONFIG=wx-config --version=3.2
CXXFLAGS += -std=c++2b -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 -Wnon-virtual-dtor -Wno-unused-function -Wshadow -Wno-maybe-uninitialized \
- -O3 -DNDEBUG `wx-config --cxxflags --debug=no` -pthread
+ -O3 -DNDEBUG `$(WX_CONFIG) --cxxflags --debug=no` -pthread
-LDFLAGS += `wx-config --libs std, aui, richtext --debug=no` -pthread
+LDFLAGS += `$(WX_CONFIG) --libs std, aui, richtext --debug=no` -pthread
LDFLAGS += -lz
--- a/FreeFileSync/Source/RealTimeSync/Makefile
+++ b/FreeFileSync/Source/RealTimeSync/Makefile
@@ -2,12 +2,13 @@
exeName = RealTimeSync
PKG_CONFIG=pkg-config
+WX_CONFIG=wx-config --version=3.2
CXXFLAGS += -std=c++2b -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 -Wnon-virtual-dtor -Wno-unused-function -Wshadow -Wno-maybe-uninitialized \
- -O3 -DNDEBUG `wx-config --cxxflags --debug=no` -pthread
+ -O3 -DNDEBUG `$(WX_CONFIG) --cxxflags --debug=no` -pthread
-LDFLAGS += `wx-config --libs std, aui, richtext --debug=no` -pthread
+LDFLAGS += `$(WX_CONFIG) --libs std, aui, richtext --debug=no` -pthread
LDFLAGS += -lz
#Gtk - support "no button border"
