Fix "make depend" in rpcapd if we can't generate dependencies.

Have a "nomkdep" script that does nothing, and run it, rather than using
the built-in ":" command.  That way, in the rpcapd directory, we don't
try to run ../: and fail, we try to run ../nomkdep and succeed.

Makefile.in

@@ -325,6 +325,7 @@ EXTRA_DIST = \
 	msdos/pktdrvr.c \
 	msdos/pktdrvr.h \
 	msdos/readme.dos \
+	nomkdep \
 	org.tcpdump.chmod_bpf.plist \
 	pcap-bpf.c \
 	pcap-bt-linux.c \

aclocal.m4

@@ -395,7 +395,7 @@ AC_DEFUN(AC_LBL_CHECK_DEPENDENCY_GENERATION_OPT,
 			# We can't run mkdep, so have "make depend" do
 			# nothing.
 			#
-			MKDEP=:
+			MKDEP=nomkdep
 		fi
 		rm -rf conftest*
 	else
@@ -404,7 +404,7 @@ AC_DEFUN(AC_LBL_CHECK_DEPENDENCY_GENERATION_OPT,
 		# We can't run mkdep, so have "make depend" do
 		# nothing.
 		#
-		MKDEP=:
+		MKDEP=nomkdep
 	fi
 	AC_SUBST(DEPENDENCY_CFLAG)
 	AC_SUBST(MKDEP)

configure

@@ -8935,7 +8935,7 @@ $as_echo "no" >&6; }
 			# We can't run mkdep, so have "make depend" do
 			# nothing.
 			#
-			MKDEP=:
+			MKDEP=nomkdep
 		fi
 		rm -rf conftest*
 	else
@@ -8945,7 +8945,7 @@ $as_echo "no" >&6; }
 		# We can't run mkdep, so have "make depend" do
 		# nothing.
 		#
-		MKDEP=:
+		MKDEP=nomkdep
 	fi
 
 

nomkdep

@@ -0,0 +1,6 @@
+#!/bin/sh -
+#
+# Does nothing; used if we don't have a command-line flag to the compiler
+# to get it to generate dependencies.
+#
+exit 0