Thank you!  I am trying to install gnash-0.8.10 from here https://www.gnu.org/software/gnash/download.html <https://www.gnu.org/software/gnash/download.html>
Yes, I've installed pango, boost and gstreamer, gst-plugins-base but the Errors rested. 

$ guix package -I | grep -e pango -e gstreamer -e gst-plugins-base -e boost
boost    1.66.0    out    /gnu/store/l6hqfwr1hcbn9rg56bwn2d41g2ai36h2-boost-1.66.0
gst-plugins-base    1.14.2    out    /gnu/store/b9v0x3p79zwhyqvq2hshnpdq7rdf10j2-gst-plugins-base-1.14.2
pango    1.42.4    out    /gnu/store/nwgzlrvh0185bskn54pdf9bmi4z2sl6l-pango-1.42.4
gstreamer    1.14.2    out    /gnu/store/7radssg4vq9vi3r58kywgkh4x9jgv3a0-gstreamer-1.14.2

$ pwd
/home/bob/Downloads/gnash-0.8.10

$ ./configure
...
    RECOMMENDED: If you install the Speex DSP library, Gnash will be able to 
                 resample Speex encoded audio in FLV files.
                 Install libspeexdsp from http://speex.org <http://speex.org>
                 or .deb users: apt-get install libspeexdsp-dev
                 or .rpm users: yum install speex-devel

Gnash should still compile, but you'll miss important support

          ERROR: No GTK2 development package installed!
                 Install it from http://gtk.org <http://gtk.org>
                 or .deb users: apt-get install libgtk2.0-dev
                 or .rpm users: yum install gtk2-devel
          ERROR: No Pango development package installed!
                 Install it from http://pango.org <http://pango.org>
                 or .deb users: apt-get install libpango1.0-dev
                 or .rpm users: yum install pango-devel
          ERROR: GST media handling requested but gstreamer-0.10+ not found
                 Install it from http://www.gstreamer.net <http://www.gstreamer.net>
                 or .deb users: apt-get install libgstreamer0.10-dev
                 or .rpm users: yum install gstreamer-devel
                 or yast users: yast install gstreamer010-devel
          ERROR: Base plugins are required for gstreamer media!
                 Install gstreamer-plugins-base from http://www.gstreamer.net <http://www.gstreamer.net>
                 or .deb users: apt-get install 
                                libgstreamer-plugins-base0.10-dev
                 or .rpm users: yum install gstreamer-plugins-base-devel
          ERROR: No AGG development package installed!
                 Install it from http://www.antigrain.com <http://www.antigrain.com>
                 or .deb users: apt-get install libagg-dev
                 or .rpm users: yum install agg-devel
          ERROR: No Boost development package installed
                 Install it from http://www.boost.org <http://www.boost.org>
                 or .deb users: apt-get install libboost-dev 
                                libboost-thread-dev libboost-program-options-dev
                 or .rpm users: yum install boost-devel
          ERROR: No xulrunner development package is installed!
                 Install it from 
                 http://releases.mozilla.org/pub/mozilla.org/xulrunner <http://releases.mozilla.org/pub/mozilla.org/xulrunner>
                 or .deb users: apt-get install xulrunner-dev
                 or .deb users: apt-get install firefox-dev
                 or .rpm users: yum install xulrunner-devel

configure: error: Please install required packages



I found in configure from line 40289 

      ac_fn_c_check_header_mongrel "$LINENO" "gstreamer_plugins_base/gst/interfaces/probeprobe.h" "ac_cv_header_gstreamer_plugins_base_gst_interfaces_probeprobe_h" "$ac_includes_default"
if test "x$ac_cv_header_gstreamer_plugins_base_gst_interfaces_probeprobe_h" = x""yes; then :
  ac_cv_path_gstreamer_plugins_base_incl="-I/usr/include/gstreamer_plugins_base"; found_gstreamer_plugins_base_incl="yes"
else


Is it possible to use this config, or I need to port manually gnash to GuixSD, so what should I do to install it?
PS: and yes I did not install gtk2, xulrunner cause I cannot believe in a happy end, also I had errors in agg compilation here: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32886 <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32886>


30. Sep 2018 20:54 by leo@famulari.name <mailto:leo@famulari.name>:


> On Sun, Sep 30, 2018 at 04:23:11PM +0200, > znavko@tutanota.com <mailto:znavko@tutanota.com>>  wrote:
>> Cannot install required packages for gnash, cause 
>> - no boost-devel in repository, 
>
> This is called 'boost' in Guix.
>
>> - no pango-devel in repository,
>
> This is 'pango'.
>
>> - no gstreamer-devel in repository
>
> This is 'gstreamer'.
>
>> My question is why after placing adobe flash player into ~/.mozilla/plugins/libflashplayer.so Icecat does not see it?
>
> Is this free software? In any case, software compiled for other systems
> typically won't work with Guix, since it won't be able to find the
> libraries it needs, as they are not found at predictable locations.