From 16f6b49c87c030be6c4ffc5890a93309f810c849 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 30 Nov 2010 16:06:14 -0800
Subject: Use config.status to generate pcap-config.

Rather than use a custom sed script to replace things in pcap-config,
use the already existing config.status script.  This keeps people from
having to update the Makefile.in every time they want to add a new var
to the file.

Also, clean up the pcap-config.in script a bit to set local vars at the
top of the file and then refer to those rather than replacing all things
through out.  This makes it easier to tweak on the fly as there is only
line to change rather than trying and figure out all the locations.

Reviewed-By: Guy Harris <guy@alum.mit.edu>
---
 Makefile.in    |  6 +-----
 pcap-config.in | 31 +++++++++++++++++++------------
 2 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index ae2e4a3..e9863dd 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -490,11 +490,7 @@ bpf_filter.o: bpf_filter.c
 #
 pcap-config: $(srcdir)/pcap-config.in
 	@rm -f $@ $@.tmp
-	sed -e 's|@includedir[@]|$(includedir)|g' \
-	    -e 's|@libdir[@]|$(libdir)|g' \
-	    -e 's|@LIBS[@]|$(LIBS)|g' \
-	    -e 's|@V_RPATH_OPT[@]|$(V_RPATH_OPT)|g' \
-	    $(srcdir)/pcap-config.in >$@.tmp
+	./config.status --file=$@.tmp:$<
 	mv $@.tmp $@
 	chmod a+x $@
 
diff --git a/pcap-config.in b/pcap-config.in
index 37526d7..206be3b 100644
--- a/pcap-config.in
+++ b/pcap-config.in
@@ -4,6 +4,13 @@
 # Script to give the appropriate compiler flags and linker flags
 # to use when building code that uses libpcap.
 #
+prefix="@prefix@"
+exec_prefix="@exec_prefix@"
+includedir="@includedir@"
+libdir="@libdir@"
+V_RPATH_OPT="@V_RPATH_OPT@"
+LIBS="@LIBS@"
+
 static=0
 show_cflags=0
 show_libs=0
@@ -29,14 +36,14 @@ do
 	esac
 	shift
 done
-if [ "@V_RPATH_OPT@" != "" ]
+if [ "$V_RPATH_OPT" != "" ]
 then
 	#
 	# If libdir isn't /usr/lib, add it to the run-time linker path.
 	#
-	if [ "@libdir@" != "/usr/lib" ]
+	if [ "$libdir" != "/usr/lib" ]
 	then
-		RPATH=@V_RPATH_OPT@@libdir@
+		RPATH=$V_RPATH_OPT$libdir
 	fi
 fi
 if [ "$static" = 1 ]
@@ -47,19 +54,19 @@ then
 	#
 	if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
 	then
-		echo "-I@includedir@ -L@libdir@ -lpcap @LIBS@"
+		echo "-I$includedir -L$libdir -lpcap $LIBS"
 	elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
 	then
-		echo "-I@includedir@ -L@libdir@ @LIBS@"
+		echo "-I$includedir -L$libdir $LIBS"
 	elif [ "$show_cflags" = 1 ]
 	then
-		echo "-I@includedir@"
+		echo "-I$includedir"
 	elif [ "$show_libs" = 1 ]
 	then
-		echo "-L@libdir@ -lpcap @LIBS@"
+		echo "-L$libdir -lpcap $LIBS"
 	elif [ "$show_additional_libs" = 1 ]
 	then
-		echo "@LIBS@"
+		echo "$LIBS"
 	fi
 else
 	#
@@ -68,15 +75,15 @@ else
 	#
 	if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
 	then
-		echo "-I@includedir@ -L@libdir@ $RPATH -lpcap"
+		echo "-I$includedir -L$libdir $RPATH -lpcap"
 	elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
 	then
-		echo "-I@includedir@"
+		echo "-I$includedir"
 	elif [ "$show_cflags" = 1 ]
 	then
-		echo "-I@includedir@"
+		echo "-I$includedir"
 	elif [ "$show_libs" = 1 ]
 	then
-		echo "-L@libdir@ $RPATH -lpcap"
+		echo "-L$libdir $RPATH -lpcap"
 	fi
 fi
-- 
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