formatting, add freebsd support

Makefile

@@ -1,8 +1,23 @@
+OS = FreeBSD
 PROG=       xmem
 VERSION=    1.26
-LDFLAGS+=   -L/usr/X11R6/lib -lX11 -lXt -lXaw -lXmu 
-CFLAGS+=    -Wall -I/usr/X11R6/include/
-OBJECTS=    xmem.o get_mem.o MemStripChart.o
+FreeBSD_lflag=   -lkvm
+LDFLAGS+=   -L/usr/X11R6/lib -L/usr/local/lib/ -lX11 -lXt -lXaw -lXmu 
+LDFLAGS+=   $($(OS)_lflag)
+CFLAGS+=    -Wall -I/usr/X11R6/include/ -I/usr/local/include/
+OBJECTS=    xmem.o  MemStripChart.o
+FreeBSD_stub =   get_mem_fbsd.o
+OpenBSD_stub =   get_mem.o
+OBJECTS += $($(OS)_stub)
+
+
+all: xmem
+
+xmem.full:
+	echo full
+
+xmem.debug:
+	echo full
 
 xmem: $(OBJECTS)
 	$(CC) -o xmem $(OBJECTS) $(LDFLAGS)
@@ -33,6 +48,5 @@ install:
 	install -c -o root -g bin -m 644 xmem.bit ${PREFIX}/share/${PROG}/xmem.bit
 	install -c -o root -g bin -m 644 copyright ${PREFIX}/share/${PROG}/copyright
 
-all: xmem
 
 .include <bsd.prog.mk>

get_mem.c

@@ -1,6 +1,7 @@
-/*  $Id: get_mem.c,v 1.4 2017/02/26 16:03:48 bch Exp $
+/*  $Id: get_mem.c,v 1.5 2018/12/26 18:46:04 bch Exp $
+ * 
  * Adapted: get memory usage on OpenBSD
- * Author: Christian Barthel <bch@vcs.onfire.org>
+ * Author: Christian Barthel <bch@online.de>
  *
  * get memory usage, from get_load.c derived
  *
@@ -9,6 +10,7 @@
  * Modified for more recent kernels Helmut Geyer Oct. 1996
  */
 
+
 #include <sys/param.h>	/* DEV_BSIZE MAXCOMLEN PZERO */
 #include <sys/sysctl.h>
 #include <sys/swap.h>

xmem.c

@@ -1,7 +1,7 @@
 /*
  * xmem - display memory/swap usage utility for X
  *
- * Updated by Christian Barthel <bch@onfire.org>
+ * Updated by Christian Barthel <bch@online.de>
  *
  * Copyright 1989 Massachusetts Institute of Technology
  *
@@ -204,8 +204,10 @@ int main(int argc, char **argv)
   (void) XSetWMProtocols (XtDisplay(toplevel), XtWindow(toplevel),
                           &wm_delete_window, 1);
 
+#if __OpenBSD__
   if (pledge("ps vminfo stdio", NULL) == -1) 
     errx(1, "pledge failed: %s", strerror(errno)); 
+#endif
 
   XtAppMainLoop(app_con);
   return 0;