Ok, I figured out what I was doing wrong. I wasn't including the .m4 files properly and I wasn't calling AX_PATH_BDB correctly. Here's how I got this to work: 1. copied ax_path_bdb.m4 and ax_compare_version.m4 from http://ac-archive.sourceforge.net/ to m4/ directory in project source root. 2. added 'AX_PATH_BDB([4])' to top-level configure.ac 3. added 'ACLOCAL_AMFLAGS = -I m4' to top-level Makefile.am Done! aclocal.m4 is properly rebuilt with subsequent invocations of 'autoreconf', and the 'configure' script checks for Berkeley DB >= 4 as expected. On Wed, 7 Jul 2004, Adam Monsen wrote: > How do I check for the presence of Berkeley DB 4.x libraries within a > configure.in (autoconf) file? > > I found the following m4 macro file: > http://ac-archive.sourceforge.net/Installed_Packages/ax_path_bdb.html > > So I add it to a file called 'acinclude.m4' in the root dir of my > source tree, and add the following lines to configure.in: > > # check for Berkeley DB >= 4 > AX_PATH_BDB([4], > [LIBS="$BDB_LIBS $LIBS" > LDFLAGS="$BDB_LDFLAGS $LDFLAGS" > CPPFLAGS="$CPPFLAGS $BDB_CPPFLAGS" > ]) > > > When I do this, it's as if autoconf starts failing in seemingly > unrelated ways, possibly forgetting it's "core" macros: > > ... > Running autoconf ... > configure.in:13: error: possibly undefined macro: dnl > If this token and others are legitimate, please use > m4_pattern_allow. > See the Autoconf documentation. > configure:5421: error: possibly undefined macro: AS_VAR_PUSHDEF > configure:5430: error: possibly undefined macro: AC_SEARCH_LIBS > configure:5447: error: possibly undefined macro: AS_VAR_POPDEF > ... > > wtf? > > I also see, > ... > ./configure: line 5416: syntax error near unexpected token > `$HEADER_VERSION,ge,4,' > ./configure: line 5416: ` > AX_COMPARE_VERSION($HEADER_VERSION,ge,4,' > ... > > PS- > I'm doing this for http://gnewsuck.sf.net/, so if anyone does have > time to help me out with this autoconf stuff (and wants to try it out > themselves), all the source code is very freely available under the > GPL. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
