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, 6 insertions, 3 deletions

diff --git a/src/roff/troff/mtsm.cpp b/src/roff/troff/mtsm.cpp
index 83f1bd21..f13a6be1 100644
--- a/src/roff/troff/mtsm.cpp
+++ b/src/roff/troff/mtsm.cpp
@@ -479,21 +479,24 @@ void mtsm::flush(FILE *fp, statem *s, string tag_list)
 void statem::display_state()
 {
   fprintf(stderr, " <state ");
-  if (bool_values[MTSM_BR].is_known)
+  if (bool_values[MTSM_BR].is_known) {
     if (bool_values[MTSM_BR].value)
       fprintf(stderr, "[br]");
     else
       fprintf(stderr, "[!br]");
-  if (bool_values[MTSM_EOL].is_known)
+  }
+  if (bool_values[MTSM_EOL].is_known) {
     if (bool_values[MTSM_EOL].value)
       fprintf(stderr, "[eol]");
     else
       fprintf(stderr, "[!eol]");
-  if (int_values[MTSM_SP].is_known)
+  }
+  if (int_values[MTSM_SP].is_known) {
     if (int_values[MTSM_SP].value)
       fprintf(stderr, "[sp %d]", int_values[MTSM_SP].value);
     else
       fprintf(stderr, "[!sp]");
+  }
   fprintf(stderr, ">");
   fflush(stderr);
 }