Upgrade db3 backend to db4.

[onak.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index e8f702209932b2f1440acac9e95adc1a4d16611b..a3468aac8dd27dedd0d3c810b5f6f753a71f3e00 100644 (file)
--- 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,,