Add memory management for colors to deallocate unnamed colors

properly.

* src/include/color.h (color): New members `free_list' and `next'.
New member functions `new' and `delete'.
Add deconstructor.
* src/libs/libgroff/color.cc: Implement it.

* src/libs/libgroff/font.cc (font::add_kern): Use integer cast
for array size of new operator.

* src/libs/libdriver/input.cc (IntArray::operator[]): Remove
redundant comparison.

* src/roff/troff/input.cc (word_space_node::reread,
hmotion_node::reread): Avoid warning about unused parameter.
(reset_output_registers): Remove redundant parameter.
(define_color): Undo change 2003-02-12.

* src/roff/troff/reg.h: Updated.

* src/roff/troff/node.cc (troff_output_file::really_print_line,
output_file::put_filename, real_output_file::really_put_filename,
ascii_output_file::really_print_line,
break_char_node::get_hyphen_list): Avoid warning about unused
parameter.
(suppress_node::tprint): Updated.

* configure.ac: Check declaration for rand() and srand().
* configure: Regenerated.

* src/preproc/pic/pic.h: Declare fmod(), rand(), and srand()
conditionally.
* src/preproc/pic/pic.y: Remove declaration of fmod(), rand(),
and srand().

* src/preproc/eqn/delim.cc (delim_table): Add missing initializers
to avoid compiler warnings.

* src/preproc/grn/hgraph.cc (HGPrintElt): Second parameter is
unused.

* src/devices/grops/ps.cc (ps_printer::set_char): Last parameter
is unused.
* src/devices/grops/psrm.cc (skip_possible_newline): Remove first
(unused) parameter.
Updated all callers.

* src/devices/grotty/tty.cc (tty_printer::set_char): Last parameter
is unused.
* src/devices/grodvi/dvi.cc (dvi_printer::set_char): Ditto.
* src/devices/grolj4/lj4.cc (lj4_printer::set_char): Ditto.

* src/devices/grohtml/post-html.cc (html_printer::emit_line):
Parameter is unused.
(html_printer::add_table_end): Define parameter conditionally.
* src/devices/grohtml/output.cc (simple_output::special): Parameter
is unused.

* src/devices/grolbp/lbp.cc: Define _GNU_SOURCE conditionally.
(lbp_printer::set_char): Last parameter is unused.

* src/utils/indxbib/indxbib.cc (main): Remove redundant comparison.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/devices/grotty/tty.cc b/src/devices/grotty/tty.cc
index d86acdbb..1f376771 100644
--- a/src/devices/grotty/tty.cc
+++ b/src/devices/grotty/tty.cc
@@ -319,7 +319,7 @@ char tty_printer::color_to_idx(color *col)
 }
 
 void tty_printer::set_char(int i, font *f, const environment *env,
-			   int w, const char *name)
+			   int w, const char *)
 {
   if (w != font::hor)
     fatal("width of character not equal to horizontal resolution");