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-rw-r--r--src/test/regress/pg_regress.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/test/regress/pg_regress.c b/src/test/regress/pg_regress.c
index 63fe68914b8..2c469413a34 100644
--- a/src/test/regress/pg_regress.c
+++ b/src/test/regress/pg_regress.c
@@ -2414,7 +2414,7 @@ regression_main(int argc, char *argv[], init_function ifunc, test_function tfunc
* Fail immediately if postmaster has exited
*/
#ifndef WIN32
- if (kill(postmaster_pid, 0) != 0)
+ if (waitpid(postmaster_pid, NULL, WNOHANG) == postmaster_pid)
#else
if (WaitForSingleObject(postmaster_pid, 0) == WAIT_OBJECT_0)
#endif