diff -Nru PDCurses-3.9.orig/configure.ac PDCurses-3.9/configure.ac
--- PDCurses-3.9.orig/configure.ac	1970-01-01 01:00:00.000000000 +0100
+++ PDCurses-3.9/configure.ac	2025-06-10 22:23:49.585676788 +0200
@@ -0,0 +1,194 @@
+AC_INIT(PDCurses, 3.9, wmcbrine@gmail.com, PDCurses)
+AC_CONFIG_SRCDIR(curses.h)
+AC_CONFIG_MACRO_DIRS([m4])
+AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects])
+
+AC_SUBST(prefix)
+
+AC_PROG_CC
+AM_PROG_AR
+
+PKG_PROG_PKG_CONFIG
+
+LT_INIT([win32-dll])
+
+AC_CONFIG_HEADERS([config.h])
+
+AC_SUBST(SYS_DEFS)
+
+AC_PROG_INSTALL
+AC_PROG_MAKE_SET
+
+AC_CHECK_FUNCS(vsscanf usleep poll vsnprintf)
+
+dnl ==================== Backend Selection ====================
+
+dnl Default backend selection
+DEFAULT_BACKEND=""
+AVAILABLE_BACKENDS=""
+ALL_BACKENDS="x11 sdl1 sdl2 wincon dos os2"
+
+dnl Check for X11
+AC_PATH_X
+if test "$have_x" != "no" ; then
+	AVAILABLE_BACKENDS="$AVAILABLE_BACKENDS x11"
+	if test "$DEFAULT_BACKEND" = "" ; then
+		DEFAULT_BACKEND="x11"
+	fi
+fi
+
+AVAILABLE_BACKENDS="$AVAILABLE_BACKENDS sdl1 sdl2 wincon dos os2"
+
+AC_ARG_WITH(backend,
+	[  --with-backend=BACKEND  select backend (available: x11 sdl1 sdl2 wincon dos os2)],
+	[BACKEND="$withval"],
+	[BACKEND="$DEFAULT_BACKEND"]
+)
+
+if test "$BACKEND" = "" ; then
+	AC_MSG_ERROR([No suitable backend found. Available backends: $AVAILABLE_BACKENDS])
+fi
+
+dnl Validate selected backend
+case "$BACKEND" in
+	x11)
+		if test "$have_x" = "no" ; then
+			AC_MSG_ERROR([X11 backend selected but X11 development libraries not found])
+		fi
+		BACKEND_CFLAGS="$X_CFLAGS"
+		BACKEND_LIBS="$X_LIBS -lX11"
+		BACKEND_DEFS=""
+		LIBNAME="XCurses"
+		;;
+	sdl1)
+		PKG_CHECK_MODULES([SDL], [sdl], [
+			BACKEND_CFLAGS="$SDL_CFLAGS"
+			BACKEND_LIBS="$SDL_LIBS"
+		], [
+			BACKEND_CFLAGS=""
+			BACKEND_LIBS="-lSDL"
+		])
+		BACKEND_DEFS=""
+		LIBNAME="SDLCurses"
+		;;
+	sdl2)
+		PKG_CHECK_MODULES([SDL2], [sdl2], [
+			BACKEND_CFLAGS="$SDL2_CFLAGS"
+			BACKEND_LIBS="$SDL2_LIBS"
+		], [
+			BACKEND_CFLAGS=""
+			BACKEND_LIBS="-lSDL2"
+		])
+		BACKEND_DEFS=""
+		LIBNAME="SDL2Curses"
+		;;
+	wincon)
+		BACKEND_CFLAGS=""
+		BACKEND_LIBS=""
+		BACKEND_DEFS=""
+		LIBNAME="pdcurses"
+		;;
+	dos)
+		BACKEND_CFLAGS=""
+		BACKEND_LIBS=""
+		BACKEND_DEFS=""
+		LIBNAME="pdcurses"
+		;;
+	os2)
+		BACKEND_CFLAGS=""
+		BACKEND_LIBS=""
+		BACKEND_DEFS=""
+		LIBNAME="pdcurses"
+		;;
+	*)
+		AC_MSG_ERROR([Unknown backend: $BACKEND. Available: $AVAILABLE_BACKENDS])
+		;;
+esac
+
+AC_SUBST(BACKEND)
+AC_SUBST(BACKEND_CFLAGS)
+AC_SUBST(BACKEND_LIBS)
+AC_SUBST(BACKEND_DEFS)
+AC_SUBST(LIBNAME)
+AC_SUBST(CONFIG_SCRIPT)
+
+echo "Selected backend: $BACKEND"
+echo "Available backends: $AVAILABLE_BACKENDS"
+
+dnl Set up conditionals for automake
+AM_CONDITIONAL([BACKEND_X11], [test "$BACKEND" = "x11"])
+AM_CONDITIONAL([BACKEND_SDL1], [test "$BACKEND" = "sdl1"])
+AM_CONDITIONAL([BACKEND_SDL2], [test "$BACKEND" = "sdl2"])
+AM_CONDITIONAL([BACKEND_WINCON], [test "$BACKEND" = "wincon"])
+AM_CONDITIONAL([BACKEND_DOS], [test "$BACKEND" = "dos"])
+AM_CONDITIONAL([BACKEND_OS2], [test "$BACKEND" = "os2"])
+
+dnl --------------- check for wide character support -----------------
+dnl allow --enable-widec to include wide character support
+AC_ARG_ENABLE(widec,
+	[  --enable-widec          include support for wide characters],
+)
+PDC_WIDE=""
+if test "$enable_widec" = "yes"; then
+	case "$BACKEND" in
+		sdl1)
+			PDC_WIDE="-DPDC_WIDE"
+			BACKEND_LIBS="$BACKEND_LIBS -lSDL_ttf"
+			;;
+		sdl2)
+			PDC_WIDE="-DPDC_WIDE"
+			BACKEND_LIBS="$BACKEND_LIBS -lSDL2_ttf"
+			;;
+		x11|wincon|dos|os2)
+			PDC_WIDE="-DPDC_WIDE"
+			;;
+	esac
+fi
+AC_SUBST(PDC_WIDE)
+
+dnl ------------------------ force UTF-8? ----------------------------
+dnl allow --enable-force-utf8 to override locale settings
+AC_ARG_ENABLE(force-utf8,
+	[  --enable-force-utf8     override locale settings; use UTF-8],
+)
+if test "$enable_force_utf8" = "yes"; then
+	SYS_DEFS="$SYS_DEFS -DPDC_FORCE_UTF8"
+fi
+
+dnl --------------------- check for Xaw3d library --------------------
+dnl allow --with-xaw3d to link with PDCurses (X11 only)
+if test "$BACKEND" = "x11" ; then
+	AC_ARG_WITH(xaw3d,
+		[  --with-xaw3d            link with Xaw3d (X11 only)],
+	)
+	if test "$with_xaw3d" = "yes"; then
+		AC_DEFINE([USE_XAW3D], [1],
+			[Define if you want to use Xaw3d library]
+		)
+	fi
+
+	dnl --------------------- check for neXtaw library -------------------
+	dnl allow --with-nextaw to link with PDCurses (X11 only)
+	AC_ARG_WITH(nextaw,
+		[  --with-nextaw           link with neXtaw (X11 only)],
+	)
+	if test "$with_nextaw" = "yes"; then
+		AC_DEFINE([USE_NEXTAW], [1],
+			[Define if you want to use neXtaw library]
+		)
+	fi
+fi
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
+
+dnl Define config.h values based on backend
+case "$BACKEND" in
+	x11)
+		AC_DEFINE([XCURSES], [1], [Define if building X11 backend])
+		AC_DEFINE([HAVE_DECKEYSYM_H], [], [Define if you have the <DECkeySym.h> header file])
+		AC_DEFINE([HAVE_SUNKEYSYM_H], [], [Define if you have the <Sunkeysym.h> header file])
+		AC_DEFINE([HAVE_XPM_H], [], [Define if you have the <xpm.h> header file])
+		AC_DEFINE([XPOINTER_TYPEDEFED], [], [Define XPointer is typedefed in X11/Xlib.h])
+        ;;
+esac 
diff -Nru PDCurses-3.9.orig/m4/.dummy PDCurses-3.9/m4/.dummy
--- PDCurses-3.9.orig/m4/.dummy	1970-01-01 01:00:00.000000000 +0100
+++ PDCurses-3.9/m4/.dummy	2025-06-10 22:30:57.006533239 +0200
@@ -0,0 +1 @@
+ 
diff -Nru PDCurses-3.9.orig/Makefile.am PDCurses-3.9/Makefile.am
--- PDCurses-3.9.orig/Makefile.am	1970-01-01 01:00:00.000000000 +0100
+++ PDCurses-3.9/Makefile.am	2025-06-10 22:27:56.504501215 +0200
@@ -0,0 +1,201 @@
+ACLOCAL_AMFLAGS = -I m4
+
+if BACKEND_X11
+lib_LTLIBRARIES = libXCurses.la
+endif
+
+if BACKEND_SDL1
+lib_LTLIBRARIES = libSDLCurses.la
+endif
+
+if BACKEND_SDL2
+lib_LTLIBRARIES = libSDL2Curses.la  
+endif
+
+if BACKEND_WINCON
+lib_LTLIBRARIES = libpdcurses.la
+endif
+
+if BACKEND_DOS
+lib_LTLIBRARIES = libpdcurses.la
+endif
+
+if BACKEND_OS2
+lib_LTLIBRARIES = libpdcurses.la
+endif
+
+
+pdcurses_sources = \
+	pdcurses/addch.c \
+	pdcurses/addchstr.c \
+	pdcurses/addstr.c \
+	pdcurses/attr.c \
+	pdcurses/beep.c \
+	pdcurses/bkgd.c \
+	pdcurses/border.c \
+	pdcurses/clear.c \
+	pdcurses/color.c \
+	pdcurses/delch.c \
+	pdcurses/deleteln.c \
+	pdcurses/getch.c \
+	pdcurses/getstr.c \
+	pdcurses/getyx.c \
+	pdcurses/inch.c \
+	pdcurses/inchstr.c \
+	pdcurses/initscr.c \
+	pdcurses/inopts.c \
+	pdcurses/insch.c \
+	pdcurses/insstr.c \
+	pdcurses/instr.c \
+	pdcurses/kernel.c \
+	pdcurses/keyname.c \
+	pdcurses/mouse.c \
+	pdcurses/move.c \
+	pdcurses/outopts.c \
+	pdcurses/overlay.c \
+	pdcurses/pad.c \
+	pdcurses/panel.c \
+	pdcurses/printw.c \
+	pdcurses/refresh.c \
+	pdcurses/scanw.c \
+	pdcurses/scr_dump.c \
+	pdcurses/scroll.c \
+	pdcurses/slk.c \
+	pdcurses/termattr.c \
+	pdcurses/touch.c \
+	pdcurses/util.c \
+	pdcurses/window.c \
+	pdcurses/debug.c
+
+# Backend-specific source files
+x11_backend_sources = \
+	x11/pdcclip.c \
+	x11/pdcdisp.c \
+	x11/pdcgetsc.c \
+	x11/pdckbd.c \
+	x11/pdcscrn.c \
+	x11/pdcsetsc.c \
+	x11/pdcutil.c \
+	x11/ScrollBox.c \
+	x11/sb.c
+
+sdl1_backend_sources = \
+	sdl1/pdcclip.c \
+	sdl1/pdcdisp.c \
+	sdl1/pdcgetsc.c \
+	sdl1/pdckbd.c \
+	sdl1/pdcscrn.c \
+	sdl1/pdcsetsc.c \
+	sdl1/pdcutil.c
+
+sdl2_backend_sources = \
+	sdl2/pdcclip.c \
+	sdl2/pdcdisp.c \
+	sdl2/pdcgetsc.c \
+	sdl2/pdckbd.c \
+	sdl2/pdcscrn.c \
+	sdl2/pdcsetsc.c \
+	sdl2/pdcutil.c
+
+wincon_backend_sources = \
+	wincon/pdcclip.c \
+	wincon/pdcdisp.c \
+	wincon/pdcgetsc.c \
+	wincon/pdckbd.c \
+	wincon/pdcscrn.c \
+	wincon/pdcsetsc.c \
+	wincon/pdcutil.c
+
+dos_backend_sources = \
+	dos/pdcclip.c \
+	dos/pdcdisp.c \
+	dos/pdcgetsc.c \
+	dos/pdckbd.c \
+	dos/pdcscrn.c \
+	dos/pdcsetsc.c \
+	dos/pdcutil.c
+
+os2_backend_sources = \
+	os2/pdcclip.c \
+	os2/pdcdisp.c \
+	os2/pdcgetsc.c \
+	os2/pdckbd.c \
+	os2/pdcscrn.c \
+	os2/pdcsetsc.c \
+	os2/pdcutil.c
+
+# Library targets
+if BACKEND_X11
+libXCurses_la_SOURCES = $(pdcurses_sources) $(x11_backend_sources)
+libXCurses_la_CPPFLAGS = @BACKEND_DEFS@ @SYS_DEFS@ @BACKEND_CFLAGS@ @PDC_WIDE@ -I.
+libXCurses_la_LIBADD = @BACKEND_LIBS@
+libXCurses_la_LDFLAGS = -version-info 3:9:0 -no-undefined
+endif
+
+if BACKEND_SDL1
+libSDLCurses_la_SOURCES = $(pdcurses_sources) $(sdl1_backend_sources)
+libSDLCurses_la_CPPFLAGS = @BACKEND_DEFS@ @SYS_DEFS@ @BACKEND_CFLAGS@ @PDC_WIDE@ -I.
+libSDLCurses_la_LIBADD = @BACKEND_LIBS@
+libSDLCurses_la_LDFLAGS = -version-info 3:9:0 -no-undefined
+endif
+
+if BACKEND_SDL2
+libSDL2Curses_la_SOURCES = $(pdcurses_sources) $(sdl2_backend_sources)
+libSDL2Curses_la_CPPFLAGS = @BACKEND_DEFS@ @SYS_DEFS@ @BACKEND_CFLAGS@ @PDC_WIDE@ -I.
+libSDL2Curses_la_LIBADD = @BACKEND_LIBS@
+libSDL2Curses_la_LDFLAGS = -version-info 3:9:0 -no-undefined
+endif
+
+if BACKEND_WINCON
+libpdcurses_la_SOURCES = $(pdcurses_sources) $(wincon_backend_sources)
+libpdcurses_la_CPPFLAGS = @BACKEND_DEFS@ @SYS_DEFS@ @BACKEND_CFLAGS@ @PDC_WIDE@ -I. -DPDC_DLL_BUILD
+libpdcurses_la_LIBADD = @BACKEND_LIBS@
+libpdcurses_la_LDFLAGS = -version-info 3:9:0 -no-undefined
+endif
+
+if BACKEND_DOS
+libpdcurses_la_SOURCES = $(pdcurses_sources) $(dos_backend_sources)
+libpdcurses_la_CPPFLAGS = @BACKEND_DEFS@ @SYS_DEFS@ @BACKEND_CFLAGS@ @PDC_WIDE@ -I.
+libpdcurses_la_LIBADD = @BACKEND_LIBS@
+libpdcurses_la_LDFLAGS = -version-info 3:9:0 -no-undefined
+endif
+
+if BACKEND_OS2
+libpdcurses_la_SOURCES = $(pdcurses_sources) $(os2_backend_sources)
+libpdcurses_la_CPPFLAGS = @BACKEND_DEFS@ @SYS_DEFS@ @BACKEND_CFLAGS@ @PDC_WIDE@ -I.
+libpdcurses_la_LIBADD = @BACKEND_LIBS@
+libpdcurses_la_LDFLAGS = -version-info 3:9:0 -no-undefined
+endif
+
+# Headers to install (in subdirectory to avoid ncurses conflicts)
+pdcursesincludedir = $(includedir)/pdcurses
+pdcursesinclude_HEADERS = curses.h panel.h
+
+# Demo programs
+noinst_PROGRAMS = firework ozdemo ptest rain testcurs tuidemo worm xmas
+
+firework_SOURCES = demos/firework.c
+firework_LDADD = $(lib_LTLIBRARIES)
+
+ozdemo_SOURCES = demos/ozdemo.c
+ozdemo_LDADD = $(lib_LTLIBRARIES)
+
+ptest_SOURCES = demos/ptest.c
+ptest_LDADD = $(lib_LTLIBRARIES)
+
+rain_SOURCES = demos/rain.c
+rain_LDADD = $(lib_LTLIBRARIES)
+
+testcurs_SOURCES = demos/testcurs.c
+testcurs_LDADD = $(lib_LTLIBRARIES)
+
+tuidemo_SOURCES = demos/tuidemo.c demos/tui.c
+tuidemo_CPPFLAGS = -Idemos
+tuidemo_LDADD = $(lib_LTLIBRARIES)
+
+worm_SOURCES = demos/worm.c
+worm_LDADD = $(lib_LTLIBRARIES)
+
+xmas_SOURCES = demos/xmas.c
+xmas_LDADD = $(lib_LTLIBRARIES)
+