1 files changed, 1 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index 8aad45169..7cf6d61dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1399,7 +1399,7 @@ AC_RUN_IFELSE(
 )
 AC_MSG_RESULT([$func_calloc_0_nonnull])
 
-if test "x$func_calloc_0_nonnull" == "xyes"; then
+if test "x$func_calloc_0_nonnull" = "xyes"; then
         AC_DEFINE(HAVE_CALLOC, 1, [calloc(0, x) returns non-null])
 else
         AC_DEFINE(HAVE_CALLOC, 0, [calloc(0, x) returns NULL])