Hi Matthew, many thanks! I've got a "distributed" setup working right now where I have Racket and the c client library running on my Mac, but it's good to know to be able to test on / switch to the complete CentOS setup as need arises.
Thanks again and have a nice weekend Sigrid Am 03.04.2011 um 01:57 schrieb Matthew Flatt: > Most of those aren't used at all, and the others turn out to be easy to > work around. > > I've pushed changes to our source repo that make DrRacket start under a > CentOS 5.5 virtual-machine installation. > > At Tue, 29 Mar 2011 11:22:53 +0200, "keyd...@gmx.de" wrote: >> Thanks a lot for your reply! Unfortunately, continuing the same procedure >> and >> ending up having made unavailable the following functions: >> >> in cairo.rkt: >> >> cairo_clip_extents >> cairo_pattern_get_color_stop_count >> cairo_pattern_get_color_stop_rgba >> cairo_pattern_get_rgba >> cairo_pattern_get_surface ( >> cairo_pattern_get_linear_points >> cairo_pattern_get_radial_circles >> >> in pango.rkt: >> >> pango_layout_iter_get_run_readonly >> pango_language_get_default >> pango_layout_get_unknown_glyphs_count >> >> drracket tries to start, but the pango stuff seems to be really needed (see >> detailed stack trace below). >> So I assume that for drracket there's nothing to be done, is it? >> The one executable I got to start without errors (that is to say, I tried >> mred >> too, it started but with errors) was mred-text - would it be possible to >> work >> with this one (I didn't even know it existed before...) if one doesn't need >> any graphics? >> >> Thanks again, >> Sigrid >> >> $ drracket >> pango_layout_get_unknown_glyphs_count: implementation not found; arguments: >> #<cpointer:PangoLayout> >> >> === context === >> /home/oracle/racket/collects/racket/draw/private/font.rkt:87:0: >> has-screen-glyph? >> /home/oracle/racket/collects/racket/private/map.rkt:72:11: andmap >> /home/oracle/racket/collects/drracket/tool-lib.rkt: [running body] >> /home/oracle/racket/collects/drracket/private/drracket-normal.rkt: [running >> body] >> /home/oracle/racket/collects/drracket/drracket.rkt: [running body] >> >> pango_layout_iter_get_run_readonly: implementation not found; arguments: >> #<cpointer:PangoLayoutIter> >> >> === context === >> /home/oracle/racket/collects/racket/draw/private/dc.rkt:1435:4: >> extract-only-run method in dc% >> /home/oracle/racket/collects/racket/draw/private/dc.rkt:1167:4: do-text >> method >> in dc% >> /home/oracle/racket/collects/racket/draw/private/dc.rkt:1128:4: core >> /home/oracle/racket/collects/racket/snip/private/style.rkt:885:2: >> reset-text-metrics method in style% >> /home/oracle/racket/collects/racket/snip/private/style.rkt:900:2: >> get-text-height method in style% >> /home/oracle/racket/collects/racket/snip/private/snip.rkt:429:2: core >> /home/oracle/racket/collects/mred/private/wxme/mline.rkt:1082:7: loop >> /home/oracle/racket/collects/mred/private/wxme/mline.rkt:1077:2: update-here >> /home/oracle/racket/collects/mred/private/wxme/mline.rkt:1072:0: >> update-graphics >> /home/oracle/racket/collects/mred/private/wxme/text.rkt:4692:2: core >> /home/oracle/racket/collects/mred/private/wxme/text.rkt:4845:2: redraw method >> in text% >> /home/oracle/racket/collects/mred/private/wxme/editor-canvas.rkt:968:2: core >> /home/oracle/racket/collects/racket/private/more-scheme.rkt:149:2: >> call-with-break-parameterization >> /home/oracle/racket/collects/racket/private/more-scheme.rkt:265:2: >> call-with-exception-handler >> /home/oracle/racket/collects/racket/private/class-internal.rkt:3511:0: >> continue-make-object >> /home/oracle/racket/collects/racket/private/class-internal.rkt:3433:2: >> make-object >> ... >> >> about to suspend in atomic mode >> Aborted >> >> >> >> >> >> Am 28.03.2011 um 22:37 schrieb Matthew Flatt: >> >>> Sorry, I'd lost track of this one. >>> >>> The cairo_clip_extents() function is used to implement the `is-empty? >>> method of region%, for which I can find no uses anywhere in the Racket >>> source tree. >>> >>> So, if you change "collects/draw/unsafe/cairo.rkt" around line 124 to >>> >>> (define-cairo cairo_clip_extents (_fun _cairo_t >>> (x1 : (_ptr o _double)) >>> (y1 : (_ptr o _double)) >>> (x2 : (_ptr o _double)) >>> (y2 : (_ptr o _double)) >>> -> _void >>> -> (values x1 y1 x2 y2)) >>> ;; Adding this part: >>> #:make-fail make-not-available) >>> >>> does that fix the problem, or are there other missing functions? >>> >>> >>> At Mon, 28 Mar 2011 22:05:09 +0200, "keyd...@gmx.de" wrote: >>>> Hi, >>>> >>>> I've encountered the exactly same problem today, running on Oracle Linux >>>> (= >>>> Red Hat 5.5, approximately)... >>>> Would anyone know a workaround for this, or if any not-too-outdated racket >>>> version would run with the old libcairo version? >>>> >>>> Unfortunately I have no alternative to installing racket on some >> RedHat-like >>>> system in a VM, for the present purpose... >>>> >>>> Many thanks for any ideas, >>>> Sigrid >>>> >>>> >>>> >>>> >>>>> >>>>> >>>>> ------------------------------ >>>>> >>>>> Message: 3 >>>>> Date: Tue, 01 Mar 2011 22:48:20 -0500 >>>>> From: Neil Van Dyke <n...@neilvandyke.org> >>>>> To: Ritchie Cai <ritchie...@gmail.com> >>>>> Cc: users@racket-lang.org >>>>> Subject: Re: [racket] Racket on Centos 5 >>>>> Message-ID: <4d6dbe04.3070...@neilvandyke.org> >>>>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed >>>>> >>>>> Apparently CentOS 5.5 packages Cairo version 1.2.4. >>>>> >>>>> Looks like "cairo_clip_extents" was introduced in Cairo snapshot version >>>>> 1.3.2. >>>>> >>>>> So, "cairo_clip_extents" was introduced in the development stream in >>>>> November 15th, 2006, four years ago, but the RHEL distro (and therefore, >>>>> CentOS) has not picked it up. Seems like RHEL/CentOS are as bad for >>>>> recent-era libraries as Debian Stable. (Matthew Flatt graciously added >>>>> compatibility with the old GTK-related library versions on the Debian >>>>> Stable distros that I tend to use.) >>>>> >>>>> Looks like the recently released RHEL 6 has Cairo 1.8.8 or later (which >>>>> should be fine for DrRacket), but CentOS 6 is not yet available. I >>>>> don't know what Cairo version CentOS 5.6 will have. >>>>> >>>>> Ritchie Cai wrote at 03/01/2011 10:09 PM: >>>>>> Centos 5.5, [...] ffi-obj: couldn't get "cairo_clip_extents" from >>>> "libcairo.so.2" (/usr/lib64/libcairo.so.2: undefined symbol: >>>> cairo_clip_extents) >>>>>> >>>>> >>>>> -- >>>>> http://www.neilvandyke.org/ >>>>> >>>> >>>> >>>> _________________________________________________ >>>> For list-related administrative tasks: >>>> http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
