From ce2a2bff0f087257220ac372cc499cf037599a03 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Mon, 19 Jul 2021 22:06:42 +0200
Subject: [PATCH] MDEV-20787 Script dgcov.pl does not work

When building with `make` gcov files use full path names,
when building with `ninja` gcov files use paths relative to the source root

in gcov_one_file() the current directory is somewhere under CMakeFiles/,
so if a file exists in the specified location, this location
must've been a full path name.
---
 mysql-test/dgcov.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mysql-test/dgcov.pl b/mysql-test/dgcov.pl
index 734f5c6ed7d..2c00c64d1ff 100755
--- a/mysql-test/dgcov.pl
+++ b/mysql-test/dgcov.pl
@@ -171,7 +171,7 @@ sub gcov_one_file {
         next;
       }
       if (/^file:/) {
-        $fname=realpath($');
+        $fname=realpath(-f $' ? $' : $root.$');
         next;
       }
       next if /^lcount:\d+,-\d+/; # whatever that means