In pg_upgrade, improve popen() failure detection by checking for fgets()failures.
Branch------master
Details-------http://git.postgresql.org/pg/commitdiff/a3996754cc0281293cc5bfb90bf594fef41aff5b
Modified Files--------------contrib/pg_upgrade/check.c | 17 ++++++++---------contrib/pg_upgrade/controldata.c | 4 ++--2 files changed, 10 insertions(+), 11 deletions(-)
