Don't hardcode `ps' device.

This is needed for cooperation with gropdf.

* src/preproc/pic/troff.cpp (troff_output::text): Use GROPS_REG.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/preproc/pic/troff.cpp b/src/preproc/pic/troff.cpp
index dfd19baf..ea93e26a 100644
--- a/src/preproc/pic/troff.cpp
+++ b/src/preproc/pic/troff.cpp
@@ -462,7 +462,7 @@ void troff_output::text(const position &center, text_piece *v, int n,
       fputs("\n.sp -1\n", stdout);
     }
   if (rotate_flag)
-    printf(".if '\\*(.T'ps' \\{\\\n"
+    printf(".if \\n(" GROPS_REG " \\{\\\n"
 	   "\\X'ps: exec grestore'\n.sp -1\n"
 	   ".\\}\n");
 }