Fix atmconfig compilation when MK_ATM == yes and MK_BSNMP == no

Makefile.inc1:
Always compile gensnmptree with bootstrap-tools when MK_BSNMP != no
instead of depending on a potentially stale tool installed on the build host

sbin/atm/atmconfig/Makefile:
- Always remove oid.h to avoid cluttering up the build/src tree.
- Consolidate all of the RESCUE/MK_BSNMP != no logic under one
conditional to improve readability
- Remove unnecessary ${.OBJDIR} prefixing for oid.h and use ${.TARGET} instead
  of spelling out oid.h
- Add a missing DPADD for ${LIBCRYPTO} when compiled MK_BSNMP == yes and
  MK_OPENSSL == yes and not compiling for /rescue/rescue

sbin/atm/atmconfig/main.c:
Change #ifndef RESCUE to #ifdef WITH_BSNMP in main.c to make it
clear that we're compiling bsnmp support into atmconfig

Approved by: jmmv (mentor)
Phabric: D579
PR: 143830
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

Makefile.inc1

@@ -1239,7 +1239,7 @@ _lex=		usr.bin/lex
 _awk=		usr.bin/awk
 .endif
 
-.if ${MK_BSNMP} != "no" && !exists(/usr/sbin/gensnmptree)
+.if ${MK_BSNMP} != "no"
 _gensnmptree=	usr.sbin/bsnmpd/gensnmptree
 .endif
 

sbin/atm/atmconfig/Makefile

@@ -8,29 +8,24 @@
 .include <src.opts.mk>
 
 PROG=	atmconfig
-.ifndef RESCUE
-SRCS=	${.OBJDIR}/oid.h
-.endif
-SRCS+=	main.c diag.c natm.c
-.ifndef RESCUE
-SRCS+=	atmconfig_device.c
-.endif
+SRCS=	main.c diag.c natm.c
 MAN=	atmconfig.8
 # CFLAGS+= -DPATH_HELP='".:/usr/share/doc/atm:/usr/local/share/doc/atm"'
 
 CFLAGS+= -I${.OBJDIR}
 
-.ifndef RESCUE
-DPADD=	${LIBBSNMP}
-LDADD=	-lbsnmp
+.if !defined(RESCUE) && ${MK_BSNMP} != "no"
+CFLAGS+=	-DWITH_BSNMP
+SRCS+=	oid.h atmconfig_device.c
+DPADD+=	${LIBBSNMP}
+LDADD+=	-lbsnmp
 . if ${MK_DYNAMICROOT} == "no" && ${MK_OPENSSL} != "no"
+DPADD+=	${LIBCRYPTO}
 LDADD+= -lcrypto
 . endif
 .endif
 
-.ifndef RESCUE
 CLEANFILES+= oid.h
-.endif
 
 # XXX - this is verboten
 .if ${MACHINE_CPUARCH} == "arm"
@@ -43,8 +38,8 @@ FILESDIR= /usr/share/doc/atm
 SNMP_ATM_DEF= ${.CURDIR}/../../../contrib/ngatm/snmp_atm/atm_tree.def	\
 	${.CURDIR}/../../../usr.sbin/bsnmpd/modules/snmp_atm/atm_freebsd.def
 
-${.OBJDIR}/oid.h: atm_oid.list ${SNMP_ATM_DEF}
+oid.h: atm_oid.list ${SNMP_ATM_DEF}
 	cat ${SNMP_ATM_DEF} | gensnmptree -e `tail -n +2 ${.CURDIR}/atm_oid.list` \
-		> ${.OBJDIR}/oid.h
+		> ${.TARGET}
 
 .include <bsd.prog.mk>

sbin/atm/atmconfig/main.c

@@ -38,7 +38,7 @@ __FBSDID("$FreeBSD$");
 #include <stdint.h>
 #include <fnmatch.h>
 #include <dirent.h>
-#ifndef RESCUE
+#ifdef WITH_BSNMP
 #include <bsnmp/asn1.h>
 #include <bsnmp/snmp.h>
 #include <bsnmp/snmpclient.h>
@@ -444,7 +444,7 @@ help_func(int argc, char *argv[])
 	exit(1);
 }
 
-#ifndef RESCUE
+#ifdef WITH_BSNMP
 /*
  * Parse a server specification
  *
@@ -527,16 +527,16 @@ main(int argc, char *argv[])
 	int opt, i;
 	const struct cmdtab *match, *cc, *tab;
 
-#ifndef RESCUE
+#ifdef WITH_BSNMP
 	snmp_client_init(&snmp_client);
 	snmp_client.trans = SNMP_TRANS_LOC_STREAM;
 	snmp_client_set_host(&snmp_client, PATH_ILMI_SOCK);
 #endif
 
-#ifdef RESCUE
-#define OPTSTR	"htv"
-#else
+#ifdef WITH_BSNMP
 #define	OPTSTR	"htvs:"
+#else
+#define OPTSTR	"htv"
 #endif
 
 	while ((opt = getopt(argc, argv, OPTSTR)) != -1)
@@ -545,7 +545,7 @@ main(int argc, char *argv[])
 		  case 'h':
 			help_func(0, argv);
 
-#ifndef RESCUE
+#ifdef WITH_BSNMP
 		  case 's':
 			parse_server(optarg);
 			break;
@@ -570,7 +570,7 @@ main(int argc, char *argv[])
 		err(1, NULL);
 	memcpy(main_tab, static_main_tab, sizeof(static_main_tab));
 
-#ifndef RESCUE
+#ifdef WITH_BSNMP
 	/* XXX while this is compiled in */
 	device_register();
 #endif