That was true (ubuntu 6.06). I started ./configure and it seems I need a lot '-dev' packages. But I can't find a package for Flowconvas. Output of terminal:
checking for FLOWCANVAS... configure: error: Package requirements (flowcanvas >= 0.1.0) were not met:
No package 'flowcanvas' found
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Alternatively, you may set the environment variables FLOWCANVAS_CFLAGS
and FLOWCANVAS_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
--------------------
I also checked
http://www.nongnu.org/om-synth/flowcanvas.html but I can't find a file named flowcanvas.
Gr Hendrik