pearl.c | 2 2 + 0 - 0 !
1 file changed, 2 insertions(+)

 pearl: require width or height to be at least 6 for tricky
Bug-Debian: https://bugs.debian.org/667963

Josh Triplett reported:
> If I ask pearl to generate a 5x5 tricky puzzle, it runs forever.

I find that 5x6 or 6x5 works, so set the minimum accordingly.

towers.c | 12 6 + 6 - 0 !
1 file changed, 6 insertions(+), 6 deletions(-)

 fix ftbfs with gcc 6
 gcc 6 warns about statements that are indented as if they were meant to be
 part of a preceding conditional block.  In this case I don't think that was
 intended, so shift it left.
Bug-Debian: https://bugs.debian.org/811577

Makefile.doc | 32 32 + 0 - 0 !
1 file changed, 32 insertions(+)

 support translated docs using po4a
Bug-Debian: https://bugs.debian.org/483665

Makefile.doc | 40 40 + 0 - 0 !
mkmanpages.pl | 157 157 + 0 - 0 !
2 files changed, 197 insertions(+)

 add rules and script to build manual pages and html

Halibut already supports these formats but since the documentation is
all combined we need to do a bit more work to extract the right
information for each game's manual page.

Recipe | 1 1 + 0 - 0 !
gtk.c | 109 109 + 0 - 0 !
2 files changed, 110 insertions(+)

 add html-based online help

This works along the same lines as the Windows implementation,
though we have to try a bit harder to find a help browser.

slant.c | 6 1 + 5 - 0 !
1 file changed, 1 insertion(+), 5 deletions(-)

 slant: shade filled squares
Bug-Debian: https://bugs.debian.org/419836

version.c | 6 5 + 1 - 0 !
1 file changed, 5 insertions(+), 1 deletion(-)

 show debian package version number

Include Debian version number in any version display to make
it obvious that the binaries are built from modified source.