Re: Bug in the behavior of &diff when executing vimdiff?

On 2011-03-25, Bram Moolenaar wrote:
> Gary Johnson wrote:
>
> > I'm trying to configure Vim so that I can
> >
> > 1. choose which filetypes have syntax coloring enabled and
> >
> > 2. set syntax off when diffing files.
> >
> > Without the latter, some syntax foreground colors and diff
> > background colors are such that the text is impossible to read.
> >
> > I've discovered when diffing two files like this,
> >
> > $ vimdiff foo.xml bar.xml
> >
> > that the value of the 'diff' option, &diff, is true when the
> > ~/.vimrc is read, false when filetype pluging for the first file,
> > foo.xml, is read, and true again when the filetype plugin for the
> > second file, bar.xml, is read. That makes it difficult to determine
> > in the filetype plugin whether syntax coloring should be on or off.
> >
> > I think this is a bug.

...

> > The behavior of &diff has like this for as long as I've been trying
> > to use it this way, early 7.2 if not before. The version I used for
> > this test was 7.3.138, a normal version built on a Fedora 11 system.
>
> How about this patch:

Thanks very much, Bram! When I try that, though, I get these
errors from 'make':

...
gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12 -g -O2 -D_FORTIFY_SOURCE=1 -o objects/main.o main.c
main.c: In function 'edit_buffers':
main.c:2710: error: 'params' undeclared (first use in this function)
main.c:2710: error: (Each undeclared identifier is reported only once
main.c:2710: error: for each function it appears in.)
make[1]: *** [objects/main.o] Error 1
make[1]: Leaving directory `/home/gajohnso/src/vim-hg/vim/src'
make: *** [first] Error 2

I thought maybe there was a conditional-compile problem, but there's
no sign of a declaration of params within main(). I didn't
investigate further.

Regards,
Gary

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