gEDA-dev: Guile 1.6 compat patch breaks gnetlist build

[Peter TB Brett]

Hi folks,

c31bd4adb677d671af8bdf5aed71f96a4995f9b1 won't build on my system.  
Compilation log attached.

  $ guile --version
  Guile 1.8.1

Relevant snippet of log:

make[2]: Entering directory `/home/peter/Projects/geda/gaf/gnetlist'
Making all in src
make[3]: Entering directory `/home/peter/Projects/geda/gaf/gnetlist/src'
gcc -DHAVE_CONFIG_H -I. -I.. -I../include -pthread -I/home/peter/opt/include -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     -Wall -g -O2 -MT 
i_vars.o -MD -MP -MF .deps/i_vars.Tpo -c -o i_vars.o i_vars.c
In file included from /usr/include/libguile.h:116,
                 from /home/peter/opt/include/libgeda/libgeda.h:28,
                 from i_vars.c:29:
/usr/include/libguile/strings.h:105: error: expected identifier or ‘(’ 
before ‘__extension__’
make[3]: *** [i_vars.o] Error 1
make[3]: Leaving directory `/home/peter/Projects/geda/gaf/gnetlist/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/peter/Projects/geda/gaf/gnetlist'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/peter/Projects/geda/gaf/gnetlist'
make: *** [gnetlist/src/gnetlist] Error 2



                      Peter

-- 
Peter Brett

Electronic Systems Engineer
Integral Informatics Ltd
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