updated

Makefile

@@ -7,7 +7,10 @@ DOCDIR   ?= $(PREFIX)/share/doc/sfm
 
 CXX      ?= g++
 CXXFLAGS ?= -std=c++17 -O2 -Wall -Wextra
-LDFLAGS  ?= -lncursesw
+# Pick a curses library: prefer ncursesw, fall back to ncurses, then plain
+# curses (netbsd-curses and BSD base systems provide only libcurses).
+CURSES_LIBS ?= $(shell pkg-config --libs ncursesw 2>/dev/null || pkg-config --libs ncurses 2>/dev/null || echo -lcurses)
+LDLIBS   ?= $(CURSES_LIBS)
 
 INSTALL  ?= install
 RM       ?= rm -f
@@ -17,7 +20,7 @@ RM       ?= rm -f
 all: sfm
 
 sfm: sfm.cpp
-	$(CXX) $(CXXFLAGS) -o $@ $< $(LDFLAGS)
+	$(CXX) $(CXXFLAGS) -o $@ $< $(LDLIBS)
 
 install: all
 	@echo "Installing sfm to $(DESTDIR)$(BINDIR)/sfm ..."