Hi, trying to build libghemical with openbabel, I ran into the following issue: checking for OPENBABEL_CFLAGS... checking for OPENBABEL_LIBS... configure: error: The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config. Alternatively you may set the OPENBABEL_CFLAGS and OPENBABEL_LIBS environment variables to avoid the need to call pkg-config. See the pkg-config man page for more details. To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>. See `config.log' for more details. make: *** [config.status] Error 1 I was able to solve this by first running aclocal-1.8 and then autoconf2.50, seems the PKG_CONFIG m4 macros are out of date with the latest pkg-config (0.19). cheers, Michael -- Michael Banck Debian Developer mbanck at debian.org http://www.advogato.org/person/mbanck/diary.html