From 71e33ec17c12e6ca43f149215ca05fc9d8b1d5a9 Mon Sep 17 00:00:00 2001 From: Yalei Wang Date: Fri, 9 Mar 2018 11:04:03 +0800 Subject: Add some third-party src code for DMM glog-0.3.4 is necessary for the DMM project. Change-Id: Id42f7370ebaff0e584a00d57d66bca98db8004e1 Signed-off-by: Yalei Wang --- .../glog-0.3.4/m4/ac_have_sync_val_compare_and_swap.m4 | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 thirdparty/glog/glog-0.3.4/m4/ac_have_sync_val_compare_and_swap.m4 (limited to 'thirdparty/glog/glog-0.3.4/m4/ac_have_sync_val_compare_and_swap.m4') diff --git a/thirdparty/glog/glog-0.3.4/m4/ac_have_sync_val_compare_and_swap.m4 b/thirdparty/glog/glog-0.3.4/m4/ac_have_sync_val_compare_and_swap.m4 new file mode 100644 index 0000000..88b027e --- /dev/null +++ b/thirdparty/glog/glog-0.3.4/m4/ac_have_sync_val_compare_and_swap.m4 @@ -0,0 +1,14 @@ +AC_DEFUN([AX_C___SYNC_VAL_COMPARE_AND_SWAP], [ + AC_MSG_CHECKING(for __sync_val_compare_and_swap) + AC_CACHE_VAL(ac_cv___sync_val_compare_and_swap, [ + AC_TRY_LINK( + [], + [int a; if (__sync_val_compare_and_swap(&a, 0, 1)) return 1; return 0;], + ac_cv___sync_val_compare_and_swap=yes, + ac_cv___sync_val_compare_and_swap=no + )]) + if test "$ac_cv___sync_val_compare_and_swap" = "yes"; then + AC_DEFINE(HAVE___SYNC_VAL_COMPARE_AND_SWAP, 1, [define if your compiler has __sync_val_compare_and_swap]) + fi + AC_MSG_RESULT($ac_cv___sync_val_compare_and_swap) +]) -- cgit 1.2.3-korg