From 5ceda58b8dc27bef915128c23f3e9e4a2886b998 Mon Sep 17 00:00:00 2001
From: Michael Adam <obnox@samba.org>
Date: Fri, 19 Jun 2009 19:02:04 +0200
Subject: [PATCH] s3:build: check for availability of external libtdb and use
 it if available

Link internal libtalloc statiaclly if extenal libtalloc is not found
or does not have appropriate version.

Michael
---
 source3/configure.in | 52 +++++++++++++++++++++++++++++---------------
 1 file changed, 34 insertions(+), 18 deletions(-)

diff --git a/source3/configure.in b/source3/configure.in
index bed7184ab7a..24276f5806b 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -33,26 +33,9 @@ done
 AC_SUBST(LIBTEVENT_OBJ0)
 LIBS="${LIBS} ${TEVENT_LIBS}"
 
-# TODO: These should come from m4_include(lib/tdb/libtdb.m4)
-# but currently this fails: things have to get merged from s4.
-tdbdir="../lib/tdb"
-AC_SUBST(tdbdir)
-TDB_CFLAGS="-I${srcdir-.}/$tdbdir/include"
-AC_SUBST(TDB_CFLAGS)
-
-LIBTDB_OBJ0=""
-for o in common/tdb.o common/dump.o common/transaction.o common/error.o \
-	     common/traverse.o common/freelist.o common/freelistcheck.o \
-		 common/io.o common/lock.o common/open.o; 
-do 
-	LIBTDB_OBJ0="$LIBTDB_OBJ0 $tdbdir/$o"
-done
-
-AC_SUBST(LIBTDB_OBJ0)
 SAMBA_CPPFLAGS="-Iinclude -I${srcdir-.}/include  -I. -I${srcdir-.}"
 SAMBA_CPPFLAGS="${SAMBA_CPPFLAGS} -I${srcdir-.}/../lib/replace"
 SAMBA_CPPFLAGS="${SAMBA_CPPFLAGS} ${TEVENT_CFLAGS}"
-SAMBA_CPPFLAGS="${SAMBA_CPPFLAGS} ${TDB_CFLAGS}"
 SAMBA_CPPFLAGS="${SAMBA_CPPFLAGS} -I${srcdir-.}/libaddns"
 SAMBA_CPPFLAGS="${SAMBA_CPPFLAGS} -I${srcdir-.}/librpc"
 SAMBA_CPPFLAGS="${SAMBA_CPPFLAGS} -I${srcdir-.}/.."
@@ -4746,7 +4729,40 @@ then
 	AC_SUBST(LIBTALLOC_OBJ0)
 fi
 
-SMB_LIBRARY(tdb, 1)
+
+AC_ARG_ENABLE(external_libtdb,
+	[AS_HELP_STRING([--enable-external-libtdb],
+		[Enable external tdb [default=auto]])],
+		[ enable_external_libtalloc=$enableval ],
+		[ enable_external_libtalloc=auto ])
+
+if test "x$enable_external_libtdb" != xno
+then
+	PKG_CHECK_MODULES(LIBTDB, tdb >= 1.1.4,
+		[ enable_external_libtdb=yes ],
+		[
+		if test x$enable_external_libtdb = xyes; then
+			AC_MSG_ERROR([Unable to find libtdb])
+		else
+			enable_external_libtdb=no
+		fi
+		])
+fi
+
+AC_SUBST(LIBTDB_OBJ0)
+if test "x$enable_external_libtdb" = xno
+then
+	m4_include(../lib/tdb/libtdb.m4)
+	LINK_LIBTDB=STATIC
+	SMB_LIBRARY(tdb, 1)
+	LIBTDB_OBJ0=""
+	for obj in ${TDB_OBJ}; do
+		LIBTDB_OBJ0="${LIBTDB_OBJ0} ${tdbdir}/${obj}"
+	done
+	AC_SUBST(LIBTDB_OBJ0)
+	SAMBA_CPPFLAGS="${SAMBA_CPPFLAGS} ${TDB_CFLAGS}"
+fi
+
 SMB_LIBRARY(netapi, 0)
 SMB_LIBRARY(smbclient, 0)
 SMB_LIBRARY(smbsharemodes, 0)
-- 
2.34.1