Graphviz package

[Anil Gulecha]

Hi,

i'm running into this issue with graphviz.

d-devlibdeps \
                --override s/libpathplan4-dev// \
                --override s/libgraph4-dev//    \
                --override s/libcdt4-dev//      \

/root/src/work3/graphviz/graphviz-2.16/debian/libgraphviz-dev.substvars
\
                /root/src/work3/graphviz/graphviz-2.16/debian/tmp/usr/lib/*.so
devlibs error: There is no package matching [libc1-dev] and noone
provides it, please report bug to d-shlibs maintainer
 --> libexpat1-dev package exists.
 --> libltdl3-dev package exists.
devlibs error: There is no package matching [libm2-dev] and noone
provides it, please report bug to d-shlibs maintainer
 --> zlib1g-dev package exists.
make: *** [install] Error 1
dpkg-buildpackage: failure: debian/rules binary gave error exit status 2

adding
                    --override s/libc1-dev//  --override s/libm2-dev//

to the list of overrides fixes the issue, but is this the right way of
going about it?

Regards
Anil

PS : pyconfig.h in the python package also needs to be fixed to below values
     #define _XOPEN_SOURCE 500
     #define _XOPEN_SOURCE_EXTENDED 0
otherwise, c++ files including pyconfig.h will fail.