Add the script

generate.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+if [ "$#" -ne 1 ]; then
+	echo "Usage: $0 <UE version>, e.g. '4.17'>"
+	exit 1
+fi
+
+ueversion=$1
+uepath=/c/Program\ Files/Epic\ Games/UE_$ueversion/Engine/Source/Runtime
+
+echo Scanning $uepath/*
+pushd >/dev/null "$uepath" || exit 1
+grep '^[[:space:]]*#define' -r --include='*.h' * | sed 's/.*#define[[:space:]]*\([a-zA-Z0-9_]*\)\(.*\)/\1/' | sort | uniq | cat > ~1/Macros_UE_${ueversion}.txt
+echo "Missed macros due to empty first line:"
+grep '^[[:space:]]*#define[[:space:]]*\\' -r --include='*.h' *
+echo
+popd >/dev/null
+
+echo Generating UndefineMacros_UE_$ueversion.h and RedefineMacros_UE_$ueversion.h
+cat < Macros_UE_${ueversion}.txt | grep -v '^_' | awk > UndefineMacros_UE_$ueversion.h '// { print "#pragma push_macro(\"" $1 "\")"; print "#undef " $1; }'
+tac < Macros_UE_${ueversion}.txt | grep -v '^_' | awk > RedefineMacros_UE_$ueversion.h '// { print "#pragma pop_macro(\"" $1 "\")"; }'