Hi, Here's a case of an incomplete invocation stack trace in an autoconf warning:
$ autoconf configure.ac:63: warning: gl_LIBUNISTRING_LIBSOURCE was called before gl_LIBUNISTRING m4/libunistring-base.m4:21: gl_LIBUNISTRING_LIBSOURCE is expanded from... m4/gnulib-comp.m4:148: gl_INIT is expanded from... configure.ac:63: the top level configure.ac:63: warning: gl_LIBUNISTRING_LIBHEADER was called before gl_LIBUNISTRING m4/libunistring-base.m4:53: gl_LIBUNISTRING_LIBHEADER is expanded from... The last line looks like the stack trace would include at least one more line. But it ends abruptly. This is with autoconf-2.65, but can be reproduced with versions 2.61..2.64 as well. How to reproduce: $ wget http://www.haible.de/bruno/gnu/autoconf-bug-20100531.tar.gz $ tar xvfz autoconf-bug-20100531.tar.gz $ cd autoconf-bug-20100531 $ autoconf Bruno