Fix compiler warnings.

* src/preproc/eqn/main.cpp (do_file), src/roff/troff/env.cpp
(environment::print_env), src/roff/troff/mtsm.cpp
(statem::display_state): Add syntactical sugar.

* src/utils/tfmtodit/tfmtodit.cpp (char_info_word): Use `unsigned
char' for all members.

* src/devices/grohtml/html-text.cpp (html_text::remove_def): Remove
unused variable `q'.
* src/devices/grohtml/post-html.cpp
(html_printer::lookahead_for_tables): Remove unused variable `left'
and `seen_text'.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/preproc/eqn/main.cpp b/src/preproc/eqn/main.cpp
index e784c2c5..167fb4e2 100644
--- a/src/preproc/eqn/main.cpp
+++ b/src/preproc/eqn/main.cpp
@@ -1,6 +1,5 @@
 // -*- C++ -*-
-/* Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2002, 2005, 2007,
-                 2009
+/* Copyright (C) 1989-1992, 2000-2002, 2005, 2007, 2009, 2011
    Free Software Foundation, Inc.
      Written by James Clark (jjc@jclark.com)
 
@@ -112,13 +111,14 @@ void do_file(FILE *fp, const char *filename)
       inline_flag = 0;
       yyparse();
       restore_compatibility();
-      if (non_empty_flag) 
+      if (non_empty_flag) {
 	if (output_format == mathml)
 	  putchar('\n');
         else {
 	  printf(".lf %d\n", current_lineno - 1);
 	  output_string();
 	}
+      }
       if (output_format == troff)
 	printf(".lf %d\n", current_lineno);
       put_string(linebuf, stdout);