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authorTony Cook <tony@develop-help.com>2019-03-25 16:11:16 +1100
committerTony Cook <tony@develop-help.com>2019-04-15 09:26:29 +1000
commit05fed879afada2f6ac1f1b5b6962e06190f5b9f6 (patch)
tree86b36cda5eaee68ec44d6909d8b44f3ac05a614b /write_buildcustomize.pl
parent918fbd43ad287e3a4b8f309a55f91e409747c895 (diff)
downloadperl-05fed879afada2f6ac1f1b5b6962e06190f5b9f6.tar.gz
(perl #133951) don't write an invalid lib/buildcustomize.pl
Cwd under miniperl (at this point) can't determine the current directory if some ancestor directory isn't readable. So Cwd::getcwd() would return undef, and write_buildcustomize.pl would write out a list of paths relative to / rather than to the cwd.
Diffstat (limited to 'write_buildcustomize.pl')
-rw-r--r--write_buildcustomize.pl3
1 files changed, 3 insertions, 0 deletions
diff --git a/write_buildcustomize.pl b/write_buildcustomize.pl
index e82f931bae..862b09fab8 100644
--- a/write_buildcustomize.pl
+++ b/write_buildcustomize.pl
@@ -61,6 +61,9 @@ require Cwd;
my $cwd = Cwd::getcwd();
+defined $cwd
+ or die "$0: Can't determine current working directory\n";
+
# lib must be last, as the toolchain modules write themselves into it
# as they build, and it's important that @INC order ensures that the partially
# written files are always masked by the complete versions.