X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/807aad387f6698a1eec1acf340496f064cb04cbb..393d83b8760584006eaefd6fc370abead228e02a:/configure.ac?ds=inline

diff --git a/configure.ac b/configure.ac
index e8f7022..a3468aa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,16 +7,36 @@ AC_PROG_CC
 
 AC_C_BIGENDIAN
 
-AC_ARG_ENABLE(backend,AC_HELP_STRING([--enable-backend=<backend>],[Choose the backend database to use. Defaults to db3.]), [], [enable_backend="db3"])
+AC_ARG_ENABLE(backend,AC_HELP_STRING([--enable-backend=<backend>],[Choose the backend database to use. Defaults to db4.]), [], [enable_backend="db4"])
 
 AC_MSG_CHECKING([which key database backend to use])
 AC_MSG_RESULT([$enable_backend])
 AC_CHECK_FILE([$srcdir/keydb_$enable_backend.c], ,AC_MSG_ERROR([non existent key database backend $enable_backend]))
 
-if test "x$enable_backend" = "xdb3"
+if test "x$enable_backend" = "xdb4"
 then
-	AC_CHECK_LIB(db3, db_env_create,,
-		AC_MSG_ERROR([cannot compile DB3 backend without libdb3]))
+	AC_CHECK_HEADER(db.h, have_db_h="yes", have_db_h="no")
+	AC_MSG_CHECKING(for libdb version in db.h)
+	printf "#include <db.h>\nDB_VERSION_MAJOR DB_VERSION_MINOR\n" >conftest.c
+	set `eval $ac_cpp conftest.c | egrep '^ *[[0-9]] *'`; v="$1"; vv="$2"
+	AC_MSG_RESULT($v.$vv)
+	if test "$v" -ne 4; then
+		AC_MSG_RESULT([   * onak requires libdb version 4])
+	fi
+	for db in "db-$v.$vv" "db$v.$vv" "db-$v" "db$v" "db"; do
+		AC_MSG_CHECKING(for db_create in lib$db)
+		oldLIBS="$LIBS"
+		LIBS="$LIBS -l$db"
+		AC_TRY_LINK([#include <db.h>], db_create(0, 0, 0),
+			have_libdb="yes", have_libdb="no")
+		AC_MSG_RESULT($have_libdb)
+		if test "$have_libdb" != "no"; then break; fi
+		LIBS="$oldLIBS"
+	done
+	if test "$have_libdb" = "no" -o "$have_db_h" = "no"; then
+		AC_MSG_ERROR(libdb not found.)
+	fi
+	AC_DEFINE(HAVE_LIBDB, 1, [libdb found])
 else if test "x$enable_backend" = "xpg"
 then
 	AC_CHECK_LIB(pq, PQsetdbLogin,,