From 49e7e5ee0b2848f5bf120a962e2e7eb11b86566a Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Sun, 10 Jan 1999 00:18:32 +0000
Subject: New makefiles. Includes support for out-of-source-tree builds.

---
 configure.in | 54 +++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 43 insertions(+), 11 deletions(-)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index 014c83d..e2c92c7 100644
--- a/configure.in
+++ b/configure.in
@@ -10,31 +10,61 @@ AC_ARG_ENABLE(debug,[  --enable-debug          enable internal debugging routine
 AC_ARG_WITH(sysconfig,[  --with-sysconfig=FILE   use specified BIRD system configuration file])
 AC_ARG_WITH(protocols,[  --with-protocols=LIST   include specified routing protocols (default: rip,static)],,[with_protocols="rip,static"])
 
+if test "$srcdir" = . ; then
+	# Building in current directory => create obj directory holding all objects
+	objdir=obj
+	mkdir -p obj
+	srcdir_rel=..
+	makefiles="Makefile:tools/Makefile-top.in obj/Makefile:tools/Makefile.in obj/Rules:tools/Rules.in"
+	exedir=..
+else
+	# Building in separate directory
+	objdir=.
+	srcdir_rel=$srcdir
+	makefiles="Makefile:tools/Makefile.in Rules:tools/Rules.in"
+	exedir=.
+fi
+case $srcdir_rel in
+	/*)	srcdir_rel_mf=$srcdir_rel ;;
+	*)	srcdir_rel_mf="\$(root-rel)$srcdir_rel" ;;
+esac
+AC_SUBST(objdir)
+AC_SUBST(exedir)
+AC_SUBST(srcdir_rel_mf)
+
 AC_CANONICAL_HOST
 AC_MSG_CHECKING([which OS configuration should we use])
 if test -n "$with_sysconfig" -a "$with_sysconfig" != no ; then
-	case "$with_sysconfig" in *.h) ;; *) with_sysconfig="$with_sysconfig.h" ;; esac
 	if test -f $with_sysconfig ; then
-		SYSDESC=$with_sysconfig
+		sysdesc=$with_sysconfig
 	else
-		SYSDESC=sysdep/cf/$with_sysconfig
+		sysdesc=$srcdir/sysdep/cf/$with_sysconfig
+		if ! test -f $sysdesc ; then
+			sysdesc=$sysdesc.h
+		fi
 	fi
 elif test -f sysconfig.h ; then
-	SYSDESC=sysconfig
+	sysdesc=sysconfig
 else
 	case "$host_os" in
-		linux*)		SYSDESC=linux-20 ;;
+		linux*)		sysdesc=linux-20 ;;
 		*)		AC_MSG_RESULT(unknown)
 				AC_MSG_ERROR([Cannot determine correct system configuration.])
 				;;
 		esac
-	SYSDESC=sysdep/cf/$SYSDESC.h
+	sysdesc=$srcdir/sysdep/cf/$sysdesc.h
 fi
-AC_MSG_RESULT($SYSDESC)
-if ! test -f $SYSDESC ; then
+AC_MSG_RESULT($sysdesc)
+if ! test -f $sysdesc ; then
 	AC_MSG_ERROR([The system configuration file is missing.])
 fi
-AC_DEFINE_UNQUOTED(SYSCONF_INCLUDE, "$SYSDESC")
+sysname=`echo $sysdesc | sed 's/\.h$//'`
+AC_DEFINE_UNQUOTED(SYSCONF_INCLUDE, "$sysdesc")
+
+AC_MSG_CHECKING([system-dependent directories])
+sysdep_dirs="`sed <$sysdesc '/^Link: /!d;s/^Link: \(.*\)$/\1/' | tr '\012' ' '` lib"
+AC_MSG_RESULT($sysdep_dirs)
+AC_SUBST(sysdep_dirs)
 
 AC_MSG_CHECKING([protocols])
 protocols=`echo "$with_protocols" | sed 's/,/ /g'`
@@ -46,6 +76,7 @@ for a in $protocols ; do
 	AC_DEFINE_UNQUOTED(CONFIG_`echo $a | tr 'a-z' 'A-Z'`)
 	done
 AC_MSG_RESULT(ok)
+AC_SUBST(protocols)
 
 AC_PROG_CC
 if test -z "$GCC" ; then
@@ -82,12 +113,13 @@ else
 fi
 
 AC_CONFIG_HEADER(sysdep/autoconf.h)
-AC_OUTPUT
+AC_OUTPUT_COMMANDS(,[$srcdir/tools/mergedirs $srcdir $srcdir_rel $objdir $sysdep_dirs])
+AC_OUTPUT($makefiles)
 
 cat >&AC_FD_MSG <<EOF
 
 BIRD was configured with the following options:
-	System configuration:	$SYSDESC
+	System configuration:	$sysdesc
 	Debugging:		$enable_debug
 	Routing protocols:	$protocols
 EOF
-- 
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