Hello, * Sam Steingold wrote on Wed, Feb 24, 2010 at 01:15:13AM CET: > On 2/23/10, Bruno Haible wrote: > > Autoconf requires it to be constant. You specify it through the > > AC_CONFIG_AUX_DIR macro. In other words, if you add to > > clisp/modules/syscalls/configure.ac > > the line > > AC_CONFIG_AUX_DIR([../../src/build-aux]) > > then you need only one copy of arg-nonnull.h, at > > clisp/src/build-aux/arg-nonnull.h > > I already have CL_MODULE_COMMON_CHECKS() in > clisp/modules/syscalls/configure.in > which expands to > AC_REQUIRE([AC_CONFIG_AUX_DIR], > [AC_CONFIG_AUX_DIR([$cl_cv_clisp_libdir/build-aux])])
That won't work right, the aux dir name needs to be known to autoreconf and 'automake --add-missing', so it needs to be a literal string. The reason autoconf doesn't warn or error out about nonliteral AC_CONFIG_AUX_DIR argument is probably that in the distant past (2.13 I guess, before I knew Autoconf anyway) it used to be possible to pass a shell variable. Cheers, Ralf
