[Cairo] Re: Patch for cairo --without-x
ellson at research.att.com
Thu Nov 27 07:24:50 PST 2003
James Henstridge wrote:
> On 27/11/03 22:39, John Ellson wrote:
>> James Henstridge wrote:
>>> If we decide to require automake >= 1.7 to build Cairo from CVS
>>> (which I highly recommend), then it should be pretty easy to
>>> conditionally install the cairo-xlib.h with syntax like this:
>>> include_HEADERS = cairo.h
>>> libcairo_la_SOURCES = ...
>>> if HAVE_X_BACKEND
>>> include_HEADERS += cairo-xlib.h
>>> libcairo_la_SOURCES += cairo_xlib_surface.c
>> This conditional make feature also works in automake-1.6. We use it
>> in graphviz.
>> It solves the problem that you want "make dist" to recurse into all
>> directories, but
>> that you only conditionally want to make the targets in some of them
>> based on
>> a configure switch.
> Are you sure? Whenever I tried using the += syntax inside a
> conditional with automake 1.6, I ended up with a broken Makefile (the
> += got changed to a normal equals, and would override the original
> definition of the variable). It didn't raise an error, but it also
> didn't work.
OK, we use the conditional, but not the += syntax.
A workaround would be to define two separate products, with separate
SOURCES and HEADERS, then make
the products conditional.
More information about the cairo