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-rw-r--r--erts/aclocal.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index abc55967ec..352a0ce43c 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -558,7 +558,7 @@ dnl
AC_DEFUN(LM_SYS_MULTICAST,
[AC_CACHE_CHECK([for multicast support], ac_cv_sys_multicast_support,
-[AC_EGREP_CPP(yes,
+[AC_EGREP_CPP(^yes$,
[#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>