$NetBSD: patch-Makefile.in,v 1.1 2020/09/10 11:26:01 nia Exp $

Adds checks for USE_ENVSYS provided by configure.ac.

--- Makefile.in.orig	2020-09-01 05:47:00.995267854 +0000
+++ Makefile.in
@@ -21,6 +21,7 @@ LDFLAGS		= @LDFLAGS@
 LIBS		= @LIBS@ @Xlib_LIBS@ @Xext_LIBS@ @libXpm_LIBS@
 USE_HAL         = @USE_HAL@
 USE_UPOWER      = @USE_UPOWER@
+USE_ENVSYS	= @USE_ENVSYS@
 
 all: wmbattery
 
@@ -80,6 +81,14 @@ upower.o: upower.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) -c upower.c -o upower.o
 endif
 
+ifdef USE_ENVSYS
+CPPFLAGS += -DENVSYS
+LIBS += -lprop
+OBJS += envsys.o
+envsys.o: envsys.c
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c envsys.c -o envsys.o
+endif
+
 wmbattery: $(OBJS)
 	$(CC) -o wmbattery $(LDFLAGS) $(OBJS) $(LIBS)