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-rw-r--r--configure.ac3
1 files changed, 2 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 99129ea..b86ec14 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ AC_INIT([ipset], [5.0], [kadlec@blackhole.kfki.hu])
AC_CANONICAL_SYSTEM
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADER([config.h])
-AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects])
dnl Shortcut: Linux supported alone
case $target in
@@ -104,6 +104,7 @@ AM_CONDITIONAL([DISABLE_EXTRA_FLAGS], [test "x$extra_flags" = xno])
dnl Checks for programs
AC_PROG_CC
+AM_PROG_CC_C_O
AC_PROG_LIBTOOL
AC_PROG_INSTALL
AC_PROG_LN_S