1 files changed, 4 insertions, 2 deletions
diff --git a/contrib/perl5/t/lib/ipc_sysv.t b/contrib/perl5/t/lib/ipc_sysv.t
index a4f3e3f..795ad5d 100755
--- a/contrib/perl5/t/lib/ipc_sysv.t
+++ b/contrib/perl5/t/lib/ipc_sysv.t
@@ -3,13 +3,15 @@
 BEGIN {
     chdir 't' if -d 't';
 
-    unshift @INC, '../lib';
+    @INC = '../lib';
 
     require Config; import Config;
 
     my $reason;
 
-    if ($Config{'d_sem'} ne 'define') {
+    if ($Config{'extensions'} !~ /\bIPC\/SysV\b/) {
+      $reason = 'IPC::SysV was not built';
+    } elsif ($Config{'d_sem'} ne 'define') {
       $reason = '$Config{d_sem} undefined';
     } elsif ($Config{'d_msg'} ne 'define') {
       $reason = '$Config{d_msg} undefined';