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-rwxr-xr-xBuild/source/extra/epstopdf/epstopdf.pl3
1 files changed, 2 insertions, 1 deletions
diff --git a/Build/source/extra/epstopdf/epstopdf.pl b/Build/source/extra/epstopdf/epstopdf.pl
index 2af1ceb1630..79ed4e75b59 100755
--- a/Build/source/extra/epstopdf/epstopdf.pl
+++ b/Build/source/extra/epstopdf/epstopdf.pl
@@ -430,7 +430,8 @@ if ($::opt_gs) {
if (! $on_windows_or_cygwin) { # list piped open works
push @GS, qw(- -c quit);
debug "Ghostscript pipe:", join(' ', @GS);
- open($OUT, '|-', @GS) or error "Cannot open Ghostscript for piped input";
+ open($OUT, '|-', @GS)
+ || error ("Cannot open Ghostscript for piped input: $GS");
} else { # use a temporary file on Windows/Cygwin.
($OUT, $tmp_filename) = tempfile(UNLINK => 1);
debug "Using temporary file '$tmp_filename'";