zic: fix PostgreSQL build failure on filesystems without hard link support

2 patchsets tracked - current t253253_8

v8t253253_8posted Jul 31, 18:27successwon't retryrecent 22dpg 20

baseb738f7b67 Jul 31, 18:08 on master

applyapplied Jul 31, 18:28

rebaselast tried Jul 31, 18:28 on b738f7b67

Result	Att	PG	Tests	Build / test	Image	When
success	1	20	1017 / 1017	2m 51s / 5m 23s	`docker run ... :t253253`	Jul 31, 18:49
run 30655283466 executed 1017 - ccache 166 hit / 6452 miss - head 31cefa96c - digest sha256:5d0ae793fd8a72... - run 30655283466

v1t253253_1posted Jul 30, 12:31successsupersededrecent 23dpg 20

base60826a352 Jul 31, 11:23 on master

applyapplied Jul 31, 12:34

rebaselast tried Jul 31, 12:34 on 60826a352

Result	Att	PG	Tests	Build / test	Image	When
success	1	20	1016 / 1016	2m 48s / 4m 35s	`docker run ... @sha256:9edf7b3...`	Jul 31, 12:46
run 30631094869 executed 1016 - ccache 166 hit / 6452 miss - head 44c66ac40 - digest sha256:9edf7b3265da58... - run 30631094869
success	1	20	1016 / 1016	2m 56s / 5m 35s	`docker run ... @sha256:9cfc760...`	Jul 30, 12:46
run 30543004742 executed 1016 - ccache 166 hit / 6452 miss - head 9fc1e0b51 - digest sha256:9cfc7601e2bc8d... - run 30543004742