Hello, gnome-chemistry-utils builds fine with openbabel 3. One just has to apply this patch for configure.ac:
--- a/configure.ac +++ b/configure.ac @@ -193,7 +193,7 @@ PKG_CHECK_MODULES(goffice, [$libgoffice >= 0.10.12]) PKG_CHECK_MODULES(chemical_mime_data, [chemical-mime-data >= 0.1.94]) PKG_CHECK_MODULES(bodr, [bodr >= 5]) -PKG_CHECK_MODULES(openbabel, [openbabel-2.0 >= 2.3.0]) +PKG_CHECK_MODULES(openbabel, [openbabel-3 >= 3.0.0]) PKG_CHECK_MODULES(x11, [x11 >= 1.0.0]) dnl Not sure we need to test for glu.h and glx.h Andrius