Hello Dan, * Dan Smithers wrote on Wed, Jan 21, 2009 at 03:19:06PM CET: > I have configure.ac in the top directories and Makefile.am in all source > directories and top directories. > > I use a sequence > > autoreconf --install > cd build > ../configure <options> > make > > Sometime this works fine. On other occasions I get an error > > automake-1.10: no Automake input file found for > `activation_analyser/src/Makefile.in' > automake-1.10: no input file among supplied arguments. Can you post the command that caused this error, including the 'make' sequence leading up to it, please? > sometime this happens because I have edited a Makefile.am without > clearing out the build directory and repeating the autoreconf step. Is > this the wrong way to use autotools? No, it should work fine. Are you using AM_MAINTAINER_MODE by the way? > Also, I am a bit confused about when to use $(srcdir) and $(top_builddir). Well, imagine instead of cd build ../configure I would do mkdir /dev/shm/build cd /dev/shm/build /path/to/configure <options> then everything that is below /dev/shm should be part of the build tree, thus referenced using relative paths or $(top_builddir). Everything in the source tree may be referenced using $(srcdir) or $(top_srcdir). The choice between the latter two can be based upon taste or convenience sometimes, typically done so that it can be easily reused elsewhere. It does have some consequences though: when the file is used as target or dependency, 'make' will typically not identify paths like ../sub/file and ./file (and most non-GNU will not even identify the latter file plain file). > I have several related executables and libraries. > In Makefile.am I use > AM_CPPFLAGS=$(srcdir)/../include Did you mean AM_CPPFLAGS=-I$(srcdir)/../include here? > to get the exported header files for the current target > > $(srcdir)/../../libname/include to get exported header files for library > name. > bin_PROGRAM=exec > exec_SOURCES=exec.c > exec_LDADD=$(top_builddir)/../libname/src/.libs -lname Please replace this line with exec_LDADD=$(top_builddir)/../libname/src/libname.la but I do wonder: $(top_builddir)/.. points outside of the build tree. Is that an error or on purpose? Cheers, Ralf _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
