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commit    decff80ec8bc4487d16f401ed3c41b735b9544e1
Author:   Andrew Dunstan <andrew@dunslane.net>
Date:     Mon Sep 09 12:56:33 2019 +0000
First released in: 13.0, 9.4.25, 9.5.20, 9.6.16, 10.11, 11.6, 12.0

    Prevent msys2 conversion of "cmd /c" switch to a file path
    
    Modern versions of msys2 have changed the treatment of "cmd /c" so that
    the runtime will try to convert the switch to a native file path. This
    patch adds a setting to inhibit that behaviour.
    
    Discussion: https://postgr.es/m/3227042f-cfcc-745a-57dd-fb8c471f8ddf@2ndQuadrant.com
    
    Backpatch to all live branches.


 src/bin/pg_upgrade/test.sh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/bin/pg_upgrade/test.sh b/src/bin/pg_upgrade/test.sh
index 30e5eedc6d8..cb46e1eb23d 100644
--- a/src/bin/pg_upgrade/test.sh
+++ b/src/bin/pg_upgrade/test.sh
@@ -224,8 +224,11 @@ pg_upgrade $PG_UPGRADE_OPTS -d "${PGDATA}.old" -D "${PGDATA}" -b "$oldbindir" -B
 
 pg_ctl start -l "$logdir/postmaster2.log" -o "$POSTMASTER_OPTS" -w
 
+# In the commands below we inhibit msys2 from converting the "/c" switch
+# in "cmd /c" to a file system path.
+
 case $testhost in
-	MINGW*)	cmd /c analyze_new_cluster.bat ;;
+	MINGW*)	MSYS2_ARG_CONV_EXCL=/c cmd /c analyze_new_cluster.bat ;;
 	*)		sh ./analyze_new_cluster.sh ;;
 esac
 
@@ -238,7 +241,7 @@ if [ -n "$pg_dumpall2_status" ]; then
 fi
 
 case $testhost in
-	MINGW*)	cmd /c delete_old_cluster.bat ;;
+	MINGW*)	MSYS2_ARG_CONV_EXCL=/c cmd /c delete_old_cluster.bat ;;
 	*)	    sh ./delete_old_cluster.sh ;;
 esac
 


[parent: 87ee1587c94d]